Use short array deconstruction syntax.

* 3.4:
  Remove branch-version (keep them for contracts only)
  [Serializer] fix decoding float XML attributes starting with 0
  add missing dutch translations
  [Validator] Add missing romanian translations
  do not translate null placeholders or titles

BufferingLogger.php

@@ -13,7 +13,7 @@ namespace Symfony\Component\Debug;
 
 use Psr\Log\AbstractLogger;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', BufferingLogger::class, \Symfony\Component\ErrorHandler\BufferingLogger::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', BufferingLogger::class, \Symfony\Component\ErrorHandler\BufferingLogger::class), \E_USER_DEPRECATED);
 
 /**
  * A buffering logger that stacks logs for later.

Debug.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', Debug::class, \Symfony\Component\ErrorHandler\Debug::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', Debug::class, \Symfony\Component\ErrorHandler\Debug::class), \E_USER_DEPRECATED);
 
 /**
  * Registers all the debug tools.
@@ -32,7 +32,7 @@ class Debug
      * @param int  $errorReportingLevel The level of error reporting you want
      * @param bool $displayErrors       Whether to display errors (for development) or just log them (for production)
      */
-    public static function enable($errorReportingLevel = E_ALL, $displayErrors = true)
+    public static function enable($errorReportingLevel = \E_ALL, $displayErrors = true)
     {
         if (static::$enabled) {
             return;
@@ -43,13 +43,13 @@ class Debug
         if (null !== $errorReportingLevel) {
             error_reporting($errorReportingLevel);
         } else {
-            error_reporting(E_ALL);
+            error_reporting(\E_ALL);
         }
 
         if (!\in_array(\PHP_SAPI, ['cli', 'phpdbg'], true)) {
             ini_set('display_errors', 0);
             ExceptionHandler::register();
-        } elseif ($displayErrors && (!filter_var(ini_get('log_errors'), FILTER_VALIDATE_BOOLEAN) || ini_get('error_log'))) {
+        } elseif ($displayErrors && (!filter_var(ini_get('log_errors'), \FILTER_VALIDATE_BOOLEAN) || ini_get('error_log'))) {
             // CLI - display errors only if they're not already logged to STDERR
             ini_set('display_errors', 1);
         }

DebugClassLoader.php

@@ -13,7 +13,7 @@ namespace Symfony\Component\Debug;
 
 use PHPUnit\Framework\MockObject\Matcher\StatelessInvocation;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', DebugClassLoader::class, \Symfony\Component\ErrorHandler\DebugClassLoader::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', DebugClassLoader::class, \Symfony\Component\ErrorHandler\DebugClassLoader::class), \E_USER_DEPRECATED);
 
 /**
  * Autoloader checking if the class is really defined in the file found.
@@ -64,7 +64,7 @@ class DebugClassLoader
             } elseif (substr($test, -\strlen($file)) === $file) {
                 // filesystem is case insensitive and realpath() normalizes the case of characters
                 self::$caseCheck = 1;
-            } elseif (false !== stripos(PHP_OS, 'darwin')) {
+            } elseif (false !== stripos(\PHP_OS, 'darwin')) {
                 // on MacOSX, HFS+ is case insensitive but realpath() doesn't normalize the case of characters
                 self::$caseCheck = 2;
             } else {
@@ -149,7 +149,7 @@ class DebugClassLoader
      */
     public function loadClass($class)
     {
-        $e = error_reporting(error_reporting() | E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR);
+        $e = error_reporting(error_reporting() | \E_PARSE | \E_ERROR | \E_CORE_ERROR | \E_COMPILE_ERROR);
 
         try {
             if ($this->isFinder && !isset($this->loaded[$class])) {
@@ -201,7 +201,7 @@ class DebugClassLoader
             $deprecations = $this->checkAnnotations($refl, $name);
 
             foreach ($deprecations as $message) {
-                @trigger_error($message, E_USER_DEPRECATED);
+                @trigger_error($message, \E_USER_DEPRECATED);
             }
         }
 
@@ -242,7 +242,7 @@ class DebugClassLoader
                 }
             }
 
-            if ($refl->isInterface() && false !== strpos($doc, 'method') && preg_match_all('#\n \* @method\s+(static\s+)?+(?:[\w\|&\[\]\\\]+\s+)?(\w+(?:\s*\([^\)]*\))?)+(.+?([[:punct:]]\s*)?)?(?=\r?\n \*(?: @|/$|\r?\n))#', $doc, $notice, PREG_SET_ORDER)) {
+            if ($refl->isInterface() && false !== strpos($doc, 'method') && preg_match_all('#\n \* @method\s+(static\s+)?+(?:[\w\|&\[\]\\\]+\s+)?(\w+(?:\s*\([^\)]*\))?)+(.+?([[:punct:]]\s*)?)?(?=\r?\n \*(?: @|/$|\r?\n))#', $doc, $notice, \PREG_SET_ORDER)) {
                 foreach ($notice as $method) {
                     $static = '' !== $method[1];
                     $name = $method[2];
@@ -300,7 +300,7 @@ class DebugClassLoader
                     $hasCall = $refl->hasMethod('__call');
                     $hasStaticCall = $refl->hasMethod('__callStatic');
                     foreach (self::$method[$use] as $method) {
-                        list($interface, $name, $static, $description) = $method;
+                        [$interface, $name, $static, $description] = $method;
                         if ($static ? $hasStaticCall : $hasCall) {
                             continue;
                         }
@@ -335,12 +335,12 @@ class DebugClassLoader
             }
 
             if ($parent && isset(self::$finalMethods[$parent][$method->name])) {
-                list($declaringClass, $message) = self::$finalMethods[$parent][$method->name];
+                [$declaringClass, $message] = self::$finalMethods[$parent][$method->name];
                 $deprecations[] = sprintf('The "%s::%s()" method is considered final%s. It may change without further notice as of its next major version. You should not extend it from "%s".', $declaringClass, $method->name, $message, $class);
             }
 
             if (isset(self::$internalMethods[$class][$method->name])) {
-                list($declaringClass, $message) = self::$internalMethods[$class][$method->name];
+                [$declaringClass, $message] = self::$internalMethods[$class][$method->name];
                 if (strncmp($ns, $declaringClass, $len)) {
                     $deprecations[] = sprintf('The "%s::%s()" method is considered internal%s. It may change without further notice. You should not extend it from "%s".', $declaringClass, $method->name, $message, $class);
                 }
@@ -379,7 +379,7 @@ class DebugClassLoader
             if ($finalOrInternal || $method->isConstructor() || false === strpos($doc, '@param') || StatelessInvocation::class === $class) {
                 continue;
             }
-            if (!preg_match_all('#\n\s+\* @param +((?(?!callable *\().*?|callable *\(.*\).*?))(?<= )\$([a-zA-Z0-9_\x7f-\xff]++)#', $doc, $matches, PREG_SET_ORDER)) {
+            if (!preg_match_all('#\n\s+\* @param +((?(?!callable *\().*?|callable *\(.*\).*?))(?<= )\$([a-zA-Z0-9_\x7f-\xff]++)#', $doc, $matches, \PREG_SET_ORDER)) {
                 continue;
             }
             if (!isset(self::$annotatedParameters[$class][$method->name])) {
@@ -388,7 +388,7 @@ class DebugClassLoader
                     $definedParameters[$parameter->name] = true;
                 }
             }
-            foreach ($matches as list(, $parameterType, $parameterName)) {
+            foreach ($matches as [, $parameterType, $parameterName]) {
                 if (!isset($definedParameters[$parameterName])) {
                     $parameterType = trim($parameterType);
                     self::$annotatedParameters[$class][$method->name][$parameterName] = sprintf('The "%%s::%s()" method will require a new "%s$%s" argument in the next major version of its %s "%s", not defining it is deprecated.', $method->name, $parameterType ? $parameterType.' ' : '', $parameterName, interface_exists($class) ? 'interface' : 'parent class', $method->class);

ErrorHandler.php

@@ -23,7 +23,7 @@ use Symfony\Component\Debug\FatalErrorHandler\FatalErrorHandlerInterface;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedFunctionFatalErrorHandler;
 use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorHandler::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorHandler::class), \E_USER_DEPRECATED);
 
 /**
  * A generic ErrorHandler for the PHP engine.
@@ -55,39 +55,39 @@ use Symfony\Component\Debug\FatalErrorHandler\UndefinedMethodFatalErrorHandler;
 class ErrorHandler
 {
     private $levels = [
-        E_DEPRECATED => 'Deprecated',
-        E_USER_DEPRECATED => 'User Deprecated',
-        E_NOTICE => 'Notice',
-        E_USER_NOTICE => 'User Notice',
-        E_STRICT => 'Runtime Notice',
-        E_WARNING => 'Warning',
-        E_USER_WARNING => 'User Warning',
-        E_COMPILE_WARNING => 'Compile Warning',
-        E_CORE_WARNING => 'Core Warning',
-        E_USER_ERROR => 'User Error',
-        E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
-        E_COMPILE_ERROR => 'Compile Error',
-        E_PARSE => 'Parse Error',
-        E_ERROR => 'Error',
-        E_CORE_ERROR => 'Core Error',
+        \E_DEPRECATED => 'Deprecated',
+        \E_USER_DEPRECATED => 'User Deprecated',
+        \E_NOTICE => 'Notice',
+        \E_USER_NOTICE => 'User Notice',
+        \E_STRICT => 'Runtime Notice',
+        \E_WARNING => 'Warning',
+        \E_USER_WARNING => 'User Warning',
+        \E_COMPILE_WARNING => 'Compile Warning',
+        \E_CORE_WARNING => 'Core Warning',
+        \E_USER_ERROR => 'User Error',
+        \E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
+        \E_COMPILE_ERROR => 'Compile Error',
+        \E_PARSE => 'Parse Error',
+        \E_ERROR => 'Error',
+        \E_CORE_ERROR => 'Core Error',
     ];
 
     private $loggers = [
-        E_DEPRECATED => [null, LogLevel::INFO],
-        E_USER_DEPRECATED => [null, LogLevel::INFO],
-        E_NOTICE => [null, LogLevel::WARNING],
-        E_USER_NOTICE => [null, LogLevel::WARNING],
-        E_STRICT => [null, LogLevel::WARNING],
-        E_WARNING => [null, LogLevel::WARNING],
-        E_USER_WARNING => [null, LogLevel::WARNING],
-        E_COMPILE_WARNING => [null, LogLevel::WARNING],
-        E_CORE_WARNING => [null, LogLevel::WARNING],
-        E_USER_ERROR => [null, LogLevel::CRITICAL],
-        E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
-        E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
-        E_PARSE => [null, LogLevel::CRITICAL],
-        E_ERROR => [null, LogLevel::CRITICAL],
-        E_CORE_ERROR => [null, LogLevel::CRITICAL],
+        \E_DEPRECATED => [null, LogLevel::INFO],
+        \E_USER_DEPRECATED => [null, LogLevel::INFO],
+        \E_NOTICE => [null, LogLevel::WARNING],
+        \E_USER_NOTICE => [null, LogLevel::WARNING],
+        \E_STRICT => [null, LogLevel::WARNING],
+        \E_WARNING => [null, LogLevel::WARNING],
+        \E_USER_WARNING => [null, LogLevel::WARNING],
+        \E_COMPILE_WARNING => [null, LogLevel::WARNING],
+        \E_CORE_WARNING => [null, LogLevel::WARNING],
+        \E_USER_ERROR => [null, LogLevel::CRITICAL],
+        \E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
+        \E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
+        \E_PARSE => [null, LogLevel::CRITICAL],
+        \E_ERROR => [null, LogLevel::CRITICAL],
+        \E_CORE_ERROR => [null, LogLevel::CRITICAL],
     ];
 
     private $thrownErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
@@ -158,7 +158,7 @@ class ErrorHandler
             $handler->setExceptionHandler($prev);
         }
 
-        $handler->throwAt(E_ALL & $handler->thrownErrors, true);
+        $handler->throwAt(\E_ALL & $handler->thrownErrors, true);
 
         return $handler;
     }
@@ -179,7 +179,7 @@ class ErrorHandler
      * @param array|int $levels  An array map of E_* to LogLevel::* or an integer bit field of E_* constants
      * @param bool      $replace Whether to replace or not any existing logger
      */
-    public function setDefaultLogger(LoggerInterface $logger, $levels = E_ALL, $replace = false)
+    public function setDefaultLogger(LoggerInterface $logger, $levels = \E_ALL, $replace = false)
     {
         $loggers = [];
 
@@ -191,7 +191,7 @@ class ErrorHandler
             }
         } else {
             if (null === $levels) {
-                $levels = E_ALL;
+                $levels = \E_ALL;
             }
             foreach ($this->loggers as $type => $log) {
                 if (($type & $levels) && (empty($log[0]) || $replace || $log[0] === $this->bootstrappingLogger)) {
@@ -245,7 +245,7 @@ class ErrorHandler
 
         if ($flush) {
             foreach ($this->bootstrappingLogger->cleanLogs() as $log) {
-                $type = $log[2]['exception'] instanceof \ErrorException ? $log[2]['exception']->getSeverity() : E_ERROR;
+                $type = $log[2]['exception'] instanceof \ErrorException ? $log[2]['exception']->getSeverity() : \E_ERROR;
                 if (!isset($flush[$type])) {
                     $this->bootstrappingLogger->log($log[0], $log[1], $log[2]);
                 } elseif ($this->loggers[$type][0]) {
@@ -283,7 +283,7 @@ class ErrorHandler
     public function throwAt($levels, $replace = false)
     {
         $prev = $this->thrownErrors;
-        $this->thrownErrors = ($levels | E_RECOVERABLE_ERROR | E_USER_ERROR) & ~E_USER_DEPRECATED & ~E_DEPRECATED;
+        $this->thrownErrors = ($levels | \E_RECOVERABLE_ERROR | \E_USER_ERROR) & ~\E_USER_DEPRECATED & ~\E_DEPRECATED;
         if (!$replace) {
             $this->thrownErrors |= $prev;
         }
@@ -385,15 +385,15 @@ class ErrorHandler
      */
     public function handleError($type, $message, $file, $line)
     {
-        if (\PHP_VERSION_ID >= 70300 && E_WARNING === $type && '"' === $message[0] && false !== strpos($message, '" targeting switch is equivalent to "break')) {
-            $type = E_DEPRECATED;
+        if (\PHP_VERSION_ID >= 70300 && \E_WARNING === $type && '"' === $message[0] && false !== strpos($message, '" targeting switch is equivalent to "break')) {
+            $type = \E_DEPRECATED;
         }
 
         // Level is the current error reporting level to manage silent error.
         $level = error_reporting();
         $silenced = 0 === ($level & $type);
         // Strong errors are not authorized to be silenced.
-        $level |= E_RECOVERABLE_ERROR | E_USER_ERROR | E_DEPRECATED | E_USER_DEPRECATED;
+        $level |= \E_RECOVERABLE_ERROR | \E_USER_ERROR | \E_DEPRECATED | \E_USER_DEPRECATED;
         $log = $this->loggedErrors & $type;
         $throw = $this->thrownErrors & $type & $level;
         $type &= $level | $this->screamedErrors;
@@ -414,7 +414,7 @@ class ErrorHandler
             self::$toStringException = null;
         } elseif (!$throw && !($type & $level)) {
             if (!isset(self::$silencedErrorCache[$id = $file.':'.$line])) {
-                $lightTrace = $this->tracedErrors & $type ? $this->cleanTrace(debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 5), $type, $file, $line, false) : [];
+                $lightTrace = $this->tracedErrors & $type ? $this->cleanTrace(debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 5), $type, $file, $line, false) : [];
                 $errorAsException = new SilencedErrorContext($type, $file, $line, isset($lightTrace[1]) ? [$lightTrace[0]] : $lightTrace);
             } elseif (isset(self::$silencedErrorCache[$id][$message])) {
                 $lightTrace = null;
@@ -449,7 +449,7 @@ class ErrorHandler
         }
 
         if ($throw) {
-            if (\PHP_VERSION_ID < 70400 && E_USER_ERROR & $type) {
+            if (\PHP_VERSION_ID < 70400 && \E_USER_ERROR & $type) {
                 for ($i = 1; isset($backtrace[$i]); ++$i) {
                     if (isset($backtrace[$i]['function'], $backtrace[$i]['type'], $backtrace[$i - 1]['function'])
                         && '__toString' === $backtrace[$i]['function']
@@ -489,7 +489,7 @@ class ErrorHandler
         if ($this->isRecursive) {
             $log = 0;
         } else {
-            if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404) && !\defined('HHVM_VERSION')) {
+            if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404)) {
                 $currentErrorHandler = set_error_handler('var_dump');
                 restore_error_handler();
             }
@@ -501,7 +501,7 @@ class ErrorHandler
             } finally {
                 $this->isRecursive = false;
 
-                if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404) && !\defined('HHVM_VERSION')) {
+                if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404)) {
                     set_error_handler($currentErrorHandler);
                 }
             }
@@ -526,7 +526,7 @@ class ErrorHandler
         if (!$exception instanceof \Exception) {
             $exception = new FatalThrowableError($exception);
         }
-        $type = $exception instanceof FatalErrorException ? $exception->getSeverity() : E_ERROR;
+        $type = $exception instanceof FatalErrorException ? $exception->getSeverity() : \E_ERROR;
         $handlerException = null;
 
         if (($this->loggedErrors & $type) || $exception instanceof FatalThrowableError) {
@@ -633,7 +633,7 @@ class ErrorHandler
             $error = error_get_last();
         }
 
-        if ($error && $error['type'] &= E_PARSE | E_ERROR | E_CORE_ERROR | E_COMPILE_ERROR) {
+        if ($error && $error['type'] &= \E_PARSE | \E_ERROR | \E_CORE_ERROR | \E_COMPILE_ERROR) {
             // Let's not throw anymore but keep logging
             $handler->throwAt(0, true);
             $trace = isset($error['backtrace']) ? $error['backtrace'] : null;

Exception/ClassNotFoundException.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ClassNotFoundException::class, \Symfony\Component\ErrorHandler\Error\ClassNotFoundError::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ClassNotFoundException::class, \Symfony\Component\ErrorHandler\Error\ClassNotFoundError::class), \E_USER_DEPRECATED);
 
 /**
  * Class (or Trait or Interface) Not Found Exception.

Exception/FatalErrorException.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', FatalErrorException::class, \Symfony\Component\ErrorHandler\Error\FatalError::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', FatalErrorException::class, \Symfony\Component\ErrorHandler\Error\FatalError::class), \E_USER_DEPRECATED);
 
 /**
  * Fatal Error Exception.

Exception/FatalThrowableError.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4.', FatalThrowableError::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4.', FatalThrowableError::class), \E_USER_DEPRECATED);
 
 /**
  * Fatal Throwable Error.
@@ -29,11 +29,11 @@ class FatalThrowableError extends FatalErrorException
         $this->originalClassName = get_debug_type($e);
 
         if ($e instanceof \ParseError) {
-            $severity = E_PARSE;
+            $severity = \E_PARSE;
         } elseif ($e instanceof \TypeError) {
-            $severity = E_RECOVERABLE_ERROR;
+            $severity = \E_RECOVERABLE_ERROR;
         } else {
-            $severity = E_ERROR;
+            $severity = \E_ERROR;
         }
 
         \ErrorException::__construct(

Exception/FlattenException.php

@@ -241,7 +241,7 @@ class FlattenException
      */
     public function setTraceFromException(\Exception $exception)
     {
-        @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 4.1, use "setTraceFromThrowable()" instead.', __METHOD__), E_USER_DEPRECATED);
+        @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 4.1, use "setTraceFromThrowable()" instead.', __METHOD__), \E_USER_DEPRECATED);
 
         $this->setTraceFromThrowable($exception);
     }

Exception/OutOfMemoryException.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', OutOfMemoryException::class, \Symfony\Component\ErrorHandler\Error\OutOfMemoryError::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', OutOfMemoryException::class, \Symfony\Component\ErrorHandler\Error\OutOfMemoryError::class), \E_USER_DEPRECATED);
 
 /**
  * Out of memory exception.

Exception/SilencedErrorContext.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', SilencedErrorContext::class, \Symfony\Component\ErrorHandler\Exception\SilencedErrorContext::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', SilencedErrorContext::class, \Symfony\Component\ErrorHandler\Exception\SilencedErrorContext::class), \E_USER_DEPRECATED);
 
 /**
  * Data Object that represents a Silenced Error.

Exception/UndefinedFunctionException.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedFunctionException::class, \Symfony\Component\ErrorHandler\Error\UndefinedFunctionError::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedFunctionException::class, \Symfony\Component\ErrorHandler\Error\UndefinedFunctionError::class), \E_USER_DEPRECATED);
 
 /**
  * Undefined Function Exception.

Exception/UndefinedMethodException.php

@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedMethodException::class, \Symfony\Component\ErrorHandler\Error\UndefinedMethodError::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedMethodException::class, \Symfony\Component\ErrorHandler\Error\UndefinedMethodError::class), \E_USER_DEPRECATED);
 
 /**
  * Undefined Method Exception.

ExceptionHandler.php

@@ -15,7 +15,7 @@ use Symfony\Component\Debug\Exception\FlattenException;
 use Symfony\Component\Debug\Exception\OutOfMemoryException;
 use Symfony\Component\HttpKernel\Debug\FileLinkFormatter;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ExceptionHandler::class, \Symfony\Component\ErrorHandler\ErrorHandler::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ExceptionHandler::class, \Symfony\Component\ErrorHandler\ErrorHandler::class), \E_USER_DEPRECATED);
 
 /**
  * ExceptionHandler converts an exception to a Response object.
@@ -398,7 +398,7 @@ EOF;
 
         if (\is_string($fmt)) {
             $i = strpos($f = $fmt, '&', max(strrpos($f, '%f'), strrpos($f, '%l'))) ?: \strlen($f);
-            $fmt = [substr($f, 0, $i)] + preg_split('/&([^>]++)>/', substr($f, $i), -1, PREG_SPLIT_DELIM_CAPTURE);
+            $fmt = [substr($f, 0, $i)] + preg_split('/&([^>]++)>/', substr($f, $i), -1, \PREG_SPLIT_DELIM_CAPTURE);
 
             for ($i = 1; isset($fmt[$i]); ++$i) {
                 if (0 === strpos($path, $k = $fmt[$i++])) {
@@ -451,7 +451,7 @@ EOF;
      */
     private function escapeHtml(string $str): string
     {
-        return htmlspecialchars($str, ENT_COMPAT | ENT_SUBSTITUTE, $this->charset);
+        return htmlspecialchars($str, \ENT_COMPAT | \ENT_SUBSTITUTE, $this->charset);
     }
 
     private function getSymfonyGhostAsSvg(): string

FatalErrorHandler/ClassNotFoundFatalErrorHandler.php

@@ -17,7 +17,7 @@ use Symfony\Component\Debug\DebugClassLoader;
 use Symfony\Component\Debug\Exception\ClassNotFoundException;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ClassNotFoundFatalErrorHandler::class, \Symfony\Component\ErrorHandler\FatalErrorHandler\ClassNotFoundFatalErrorHandler::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', ClassNotFoundFatalErrorHandler::class, \Symfony\Component\ErrorHandler\FatalErrorHandler\ClassNotFoundFatalErrorHandler::class), \E_USER_DEPRECATED);
 
 /**
  * ErrorHandler for classes that do not exist.
@@ -33,50 +33,34 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
      */
     public function handleError(array $error, FatalErrorException $exception)
     {
-        $messageLen = \strlen($error['message']);
-        $notFoundSuffix = '\' not found';
-        $notFoundSuffixLen = \strlen($notFoundSuffix);
-        if ($notFoundSuffixLen > $messageLen) {
+        if (!preg_match('/^(Class|Interface|Trait) [\'"]([^\'"]+)[\'"] not found$/', $error['message'], $matches)) {
             return null;
         }
+        $typeName = strtolower($matches[1]);
+        $fullyQualifiedClassName = $matches[2];
 
-        if (0 !== substr_compare($error['message'], $notFoundSuffix, -$notFoundSuffixLen)) {
-            return null;
+        if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedClassName, '\\')) {
+            $className = substr($fullyQualifiedClassName, $namespaceSeparatorIndex + 1);
+            $namespacePrefix = substr($fullyQualifiedClassName, 0, $namespaceSeparatorIndex);
+            $message = sprintf('Attempted to load %s "%s" from namespace "%s".', $typeName, $className, $namespacePrefix);
+            $tail = ' for another namespace?';
+        } else {
+            $className = $fullyQualifiedClassName;
+            $message = sprintf('Attempted to load %s "%s" from the global namespace.', $typeName, $className);
+            $tail = '?';
         }
 
-        foreach (['class', 'interface', 'trait'] as $typeName) {
-            $prefix = ucfirst($typeName).' \'';
-            $prefixLen = \strlen($prefix);
-            if (0 !== strpos($error['message'], $prefix)) {
-                continue;
-            }
-
-            $fullyQualifiedClassName = substr($error['message'], $prefixLen, -$notFoundSuffixLen);
-            if (false !== $namespaceSeparatorIndex = strrpos($fullyQualifiedClassName, '\\')) {
-                $className = substr($fullyQualifiedClassName, $namespaceSeparatorIndex + 1);
-                $namespacePrefix = substr($fullyQualifiedClassName, 0, $namespaceSeparatorIndex);
-                $message = sprintf('Attempted to load %s "%s" from namespace "%s".', $typeName, $className, $namespacePrefix);
-                $tail = ' for another namespace?';
+        if ($candidates = $this->getClassCandidates($className)) {
+            $tail = array_pop($candidates).'"?';
+            if ($candidates) {
+                $tail = ' for e.g. "'.implode('", "', $candidates).'" or "'.$tail;
             } else {
-                $className = $fullyQualifiedClassName;
-                $message = sprintf('Attempted to load %s "%s" from the global namespace.', $typeName, $className);
-                $tail = '?';
+                $tail = ' for "'.$tail;
             }
-
-            if ($candidates = $this->getClassCandidates($className)) {
-                $tail = array_pop($candidates).'"?';
-                if ($candidates) {
-                    $tail = ' for e.g. "'.implode('", "', $candidates).'" or "'.$tail;
-                } else {
-                    $tail = ' for "'.$tail;
-                }
-            }
-            $message .= "\nDid you forget a \"use\" statement".$tail;
-
-            return new ClassNotFoundException($message, $exception);
         }
+        $message .= "\nDid you forget a \"use\" statement".$tail;
 
-        return null;
+        return new ClassNotFoundException($message, $exception);
     }
 
     /**

FatalErrorHandler/FatalErrorHandlerInterface.php

@@ -13,7 +13,7 @@ namespace Symfony\Component\Debug\FatalErrorHandler;
 
 use Symfony\Component\Debug\Exception\FatalErrorException;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', FatalErrorHandlerInterface::class, \Symfony\Component\ErrorHandler\FatalErrorHandler\FatalErrorHandlerInterface::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', FatalErrorHandlerInterface::class, \Symfony\Component\ErrorHandler\FatalErrorHandler\FatalErrorHandlerInterface::class), \E_USER_DEPRECATED);
 
 /**
  * Attempts to convert fatal errors to exceptions.

FatalErrorHandler/UndefinedFunctionFatalErrorHandler.php

@@ -14,7 +14,7 @@ namespace Symfony\Component\Debug\FatalErrorHandler;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\Exception\UndefinedFunctionException;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedFunctionFatalErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedFunctionFatalErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer::class), \E_USER_DEPRECATED);
 
 /**
  * ErrorHandler for undefined functions.

FatalErrorHandler/UndefinedMethodFatalErrorHandler.php

@@ -14,7 +14,7 @@ namespace Symfony\Component\Debug\FatalErrorHandler;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\Exception\UndefinedMethodException;
 
-@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedMethodFatalErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedMethodErrorEnhancer::class), E_USER_DEPRECATED);
+@trigger_error(sprintf('The "%s" class is deprecated since Symfony 4.4, use "%s" instead.', UndefinedMethodFatalErrorHandler::class, \Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedMethodErrorEnhancer::class), \E_USER_DEPRECATED);
 
 /**
  * ErrorHandler for undefined methods.

Tests/ErrorHandlerTest.php

@@ -75,12 +75,12 @@ class ErrorHandlerTest extends TestCase
         $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
         $handler = ErrorHandler::register();
         $handler->setDefaultLogger($logger);
-        $handler->screamAt(E_ALL);
+        $handler->screamAt(\E_ALL);
 
         try {
-            @trigger_error('Hello', E_USER_WARNING);
+            @trigger_error('Hello', \E_USER_WARNING);
             $expected = [
-                'type' => E_USER_WARNING,
+                'type' => \E_USER_WARNING,
                 'message' => 'Hello',
                 'file' => __FILE__,
                 'line' => __LINE__ - 5,
@@ -104,10 +104,10 @@ class ErrorHandlerTest extends TestCase
         } catch (\ErrorException $exception) {
             // if an exception is thrown, the test passed
             if (\PHP_VERSION_ID < 80000) {
-                $this->assertEquals(E_NOTICE, $exception->getSeverity());
+                $this->assertEquals(\E_NOTICE, $exception->getSeverity());
                 $this->assertMatchesRegularExpression('/^Notice: Undefined variable: (foo|bar)/', $exception->getMessage());
             } else {
-                $this->assertEquals(E_WARNING, $exception->getSeverity());
+                $this->assertEquals(\E_WARNING, $exception->getSeverity());
                 $this->assertMatchesRegularExpression('/^Warning: Undefined variable \$(foo|bar)/', $exception->getMessage());
             }
             $this->assertEquals(__FILE__, $exception->getFile());
@@ -140,7 +140,7 @@ class ErrorHandlerTest extends TestCase
         try {
             $handler = ErrorHandler::register();
             $handler->throwAt(3, true);
-            $this->assertEquals(3 | E_RECOVERABLE_ERROR | E_USER_ERROR, $handler->throwAt(0));
+            $this->assertEquals(3 | \E_RECOVERABLE_ERROR | \E_USER_ERROR, $handler->throwAt(0));
         } finally {
             restore_error_handler();
             restore_exception_handler();
@@ -153,25 +153,25 @@ class ErrorHandlerTest extends TestCase
             $logger = $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock();
             $handler = ErrorHandler::register();
 
-            $handler->setDefaultLogger($logger, E_NOTICE);
-            $handler->setDefaultLogger($logger, [E_USER_NOTICE => LogLevel::CRITICAL]);
+            $handler->setDefaultLogger($logger, \E_NOTICE);
+            $handler->setDefaultLogger($logger, [\E_USER_NOTICE => LogLevel::CRITICAL]);
 
             $loggers = [
-                E_DEPRECATED => [null, LogLevel::INFO],
-                E_USER_DEPRECATED => [null, LogLevel::INFO],
-                E_NOTICE => [$logger, LogLevel::WARNING],
-                E_USER_NOTICE => [$logger, LogLevel::CRITICAL],
-                E_STRICT => [null, LogLevel::WARNING],
-                E_WARNING => [null, LogLevel::WARNING],
-                E_USER_WARNING => [null, LogLevel::WARNING],
-                E_COMPILE_WARNING => [null, LogLevel::WARNING],
-                E_CORE_WARNING => [null, LogLevel::WARNING],
-                E_USER_ERROR => [null, LogLevel::CRITICAL],
-                E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
-                E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
-                E_PARSE => [null, LogLevel::CRITICAL],
-                E_ERROR => [null, LogLevel::CRITICAL],
-                E_CORE_ERROR => [null, LogLevel::CRITICAL],
+                \E_DEPRECATED => [null, LogLevel::INFO],
+                \E_USER_DEPRECATED => [null, LogLevel::INFO],
+                \E_NOTICE => [$logger, LogLevel::WARNING],
+                \E_USER_NOTICE => [$logger, LogLevel::CRITICAL],
+                \E_STRICT => [null, LogLevel::WARNING],
+                \E_WARNING => [null, LogLevel::WARNING],
+                \E_USER_WARNING => [null, LogLevel::WARNING],
+                \E_COMPILE_WARNING => [null, LogLevel::WARNING],
+                \E_CORE_WARNING => [null, LogLevel::WARNING],
+                \E_USER_ERROR => [null, LogLevel::CRITICAL],
+                \E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
+                \E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
+                \E_PARSE => [null, LogLevel::CRITICAL],
+                \E_ERROR => [null, LogLevel::CRITICAL],
+                \E_CORE_ERROR => [null, LogLevel::CRITICAL],
             ];
             $this->assertSame($loggers, $handler->setLoggers([]));
         } finally {
@@ -212,15 +212,15 @@ class ErrorHandlerTest extends TestCase
             restore_exception_handler();
 
             $handler = ErrorHandler::register();
-            $handler->throwAt(E_USER_DEPRECATED, true);
-            $this->assertFalse($handler->handleError(E_USER_DEPRECATED, 'foo', 'foo.php', 12, []));
+            $handler->throwAt(\E_USER_DEPRECATED, true);
+            $this->assertFalse($handler->handleError(\E_USER_DEPRECATED, 'foo', 'foo.php', 12, []));
 
             restore_error_handler();
             restore_exception_handler();
 
             $handler = ErrorHandler::register();
-            $handler->throwAt(E_DEPRECATED, true);
-            $this->assertFalse($handler->handleError(E_DEPRECATED, 'foo', 'foo.php', 12, []));
+            $handler->throwAt(\E_DEPRECATED, true);
+            $this->assertFalse($handler->handleError(\E_DEPRECATED, 'foo', 'foo.php', 12, []));
 
             restore_error_handler();
             restore_exception_handler();
@@ -234,7 +234,7 @@ class ErrorHandlerTest extends TestCase
                 $exception = $context['exception'];
                 $this->assertInstanceOf(\ErrorException::class, $exception);
                 $this->assertSame('User Deprecated: foo', $exception->getMessage());
-                $this->assertSame(E_USER_DEPRECATED, $exception->getSeverity());
+                $this->assertSame(\E_USER_DEPRECATED, $exception->getSeverity());
             };
 
             $logger
@@ -244,8 +244,8 @@ class ErrorHandlerTest extends TestCase
             ;
 
             $handler = ErrorHandler::register();
-            $handler->setDefaultLogger($logger, E_USER_DEPRECATED);
-            $this->assertTrue($handler->handleError(E_USER_DEPRECATED, 'foo', 'foo.php', 12, []));
+            $handler->setDefaultLogger($logger, \E_USER_DEPRECATED);
+            $this->assertTrue($handler->handleError(\E_USER_DEPRECATED, 'foo', 'foo.php', 12, []));
 
             restore_error_handler();
             restore_exception_handler();
@@ -259,10 +259,10 @@ class ErrorHandlerTest extends TestCase
 
                 if (\PHP_VERSION_ID < 80000) {
                     $this->assertEquals('Notice: Undefined variable: undefVar', $message);
-                    $this->assertSame(E_NOTICE, $exception->getSeverity());
+                    $this->assertSame(\E_NOTICE, $exception->getSeverity());
                 } else {
                     $this->assertEquals('Warning: Undefined variable $undefVar', $message);
-                    $this->assertSame(E_WARNING, $exception->getSeverity());
+                    $this->assertSame(\E_WARNING, $exception->getSeverity());
                 }
                 $this->assertInstanceOf(SilencedErrorContext::class, $exception);
                 $this->assertSame(__FILE__, $exception->getFile());
@@ -279,11 +279,11 @@ class ErrorHandlerTest extends TestCase
 
             $handler = ErrorHandler::register();
             if (\PHP_VERSION_ID < 80000) {
-                $handler->setDefaultLogger($logger, E_NOTICE);
-                $handler->screamAt(E_NOTICE);
+                $handler->setDefaultLogger($logger, \E_NOTICE);
+                $handler->screamAt(\E_NOTICE);
             } else {
-                $handler->setDefaultLogger($logger, E_WARNING);
-                $handler->screamAt(E_WARNING);
+                $handler->setDefaultLogger($logger, \E_WARNING);
+                $handler->screamAt(\E_WARNING);
             }
             unset($undefVar);
             $line = __LINE__ + 1;
@@ -328,9 +328,9 @@ class ErrorHandlerTest extends TestCase
     public function testHandleErrorWithAnonymousClass()
     {
         $handler = ErrorHandler::register();
-        $handler->throwAt(E_USER_WARNING, true);
+        $handler->throwAt(\E_USER_WARNING, true);
         try {
-            $handler->handleError(E_USER_WARNING, 'foo '.\get_class(new class() extends \stdClass {
+            $handler->handleError(\E_USER_WARNING, 'foo '.\get_class(new class() extends \stdClass {
             }).' bar', 'foo.php', 12);
             $this->fail('Exception expected.');
         } catch (\ErrorException $e) {
@@ -340,7 +340,7 @@ class ErrorHandlerTest extends TestCase
         }
 
         $this->assertSame('User Warning: foo stdClass@anonymous bar', $e->getMessage());
-        $this->assertSame(E_USER_WARNING, $e->getSeverity());
+        $this->assertSame(\E_USER_WARNING, $e->getSeverity());
         $this->assertSame('foo.php', $e->getFile());
         $this->assertSame(12, $e->getLine());
     }
@@ -364,7 +364,7 @@ class ErrorHandlerTest extends TestCase
 
         $handler = new ErrorHandler();
         $handler->setDefaultLogger($logger);
-        @$handler->handleError(E_USER_DEPRECATED, 'Foo deprecation', __FILE__, __LINE__, []);
+        @$handler->handleError(\E_USER_DEPRECATED, 'Foo deprecation', __FILE__, __LINE__, []);
     }
 
     public function testHandleException()
@@ -387,7 +387,7 @@ class ErrorHandlerTest extends TestCase
                 ->willReturnCallback($logArgCheck)
             ;
 
-            $handler->setDefaultLogger($logger, E_ERROR);
+            $handler->setDefaultLogger($logger, \E_ERROR);
 
             try {
                 $handler->handleException($exception);
@@ -413,26 +413,26 @@ class ErrorHandlerTest extends TestCase
         $handler = new ErrorHandler($bootLogger);
 
         $loggers = [
-            E_DEPRECATED => [$bootLogger, LogLevel::INFO],
-            E_USER_DEPRECATED => [$bootLogger, LogLevel::INFO],
-            E_NOTICE => [$bootLogger, LogLevel::WARNING],
-            E_USER_NOTICE => [$bootLogger, LogLevel::WARNING],
-            E_STRICT => [$bootLogger, LogLevel::WARNING],
-            E_WARNING => [$bootLogger, LogLevel::WARNING],
-            E_USER_WARNING => [$bootLogger, LogLevel::WARNING],
-            E_COMPILE_WARNING => [$bootLogger, LogLevel::WARNING],
-            E_CORE_WARNING => [$bootLogger, LogLevel::WARNING],
-            E_USER_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            E_RECOVERABLE_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            E_COMPILE_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            E_PARSE => [$bootLogger, LogLevel::CRITICAL],
-            E_ERROR => [$bootLogger, LogLevel::CRITICAL],
-            E_CORE_ERROR => [$bootLogger, LogLevel::CRITICAL],
+            \E_DEPRECATED => [$bootLogger, LogLevel::INFO],
+            \E_USER_DEPRECATED => [$bootLogger, LogLevel::INFO],
+            \E_NOTICE => [$bootLogger, LogLevel::WARNING],
+            \E_USER_NOTICE => [$bootLogger, LogLevel::WARNING],
+            \E_STRICT => [$bootLogger, LogLevel::WARNING],
+            \E_WARNING => [$bootLogger, LogLevel::WARNING],
+            \E_USER_WARNING => [$bootLogger, LogLevel::WARNING],
+            \E_COMPILE_WARNING => [$bootLogger, LogLevel::WARNING],
+            \E_CORE_WARNING => [$bootLogger, LogLevel::WARNING],
+            \E_USER_ERROR => [$bootLogger, LogLevel::CRITICAL],
+            \E_RECOVERABLE_ERROR => [$bootLogger, LogLevel::CRITICAL],
+            \E_COMPILE_ERROR => [$bootLogger, LogLevel::CRITICAL],
+            \E_PARSE => [$bootLogger, LogLevel::CRITICAL],
+            \E_ERROR => [$bootLogger, LogLevel::CRITICAL],
+            \E_CORE_ERROR => [$bootLogger, LogLevel::CRITICAL],
         ];
 
         $this->assertSame($loggers, $handler->setLoggers([]));
 
-        $handler->handleError(E_DEPRECATED, 'Foo message', __FILE__, 123, []);
+        $handler->handleError(\E_DEPRECATED, 'Foo message', __FILE__, 123, []);
 
         $logs = $bootLogger->cleanLogs();
 
@@ -446,7 +446,7 @@ class ErrorHandlerTest extends TestCase
         $this->assertSame('Deprecated: Foo message', $exception->getMessage());
         $this->assertSame(__FILE__, $exception->getFile());
         $this->assertSame(123, $exception->getLine());
-        $this->assertSame(E_DEPRECATED, $exception->getSeverity());
+        $this->assertSame(\E_DEPRECATED, $exception->getSeverity());
 
         $bootLogger->log(LogLevel::WARNING, 'Foo message', ['exception' => $exception]);
 
@@ -455,7 +455,7 @@ class ErrorHandlerTest extends TestCase
             ->method('log')
             ->with(LogLevel::WARNING, 'Foo message', ['exception' => $exception]);
 
-        $handler->setLoggers([E_DEPRECATED => [$mockLogger, LogLevel::WARNING]]);
+        $handler->setLoggers([\E_DEPRECATED => [$mockLogger, LogLevel::WARNING]]);
     }
 
     public function testSettingLoggerWhenExceptionIsBuffered()
@@ -484,7 +484,7 @@ class ErrorHandlerTest extends TestCase
             $handler = ErrorHandler::register();
 
             $error = [
-                'type' => E_PARSE,
+                'type' => \E_PARSE,
                 'message' => 'foo',
                 'file' => 'bar',
                 'line' => 123,
@@ -502,7 +502,7 @@ class ErrorHandlerTest extends TestCase
                 ->willReturnCallback($logArgCheck)
             ;
 
-            $handler->setDefaultLogger($logger, E_PARSE);
+            $handler->setDefaultLogger($logger, \E_PARSE);
 
             $handler->handleFatalError($error);
 
@@ -561,8 +561,8 @@ class ErrorHandlerTest extends TestCase
                 $handler = ErrorHandlerThatUsesThePreviousOne::register();
             }
 
-            @trigger_error('foo', E_USER_DEPRECATED);
-            @trigger_error('bar', E_USER_DEPRECATED);
+            @trigger_error('foo', \E_USER_DEPRECATED);
+            @trigger_error('bar', \E_USER_DEPRECATED);
 
             $this->assertSame([$handler, 'handleError'], set_error_handler('var_dump'));
 

Tests/Exception/FlattenExceptionTest.php

@@ -265,8 +265,8 @@ class FlattenExceptionTest extends TestCase
             0.0,
             '0',
             '',
-            INF,
-            NAN,
+            \INF,
+            \NAN,
         ]);
 
         $flattened = FlattenException::create($exception);
@@ -297,7 +297,7 @@ class FlattenExceptionTest extends TestCase
         $this->assertSame(['float', 0.0], $array[$i++]);
         $this->assertSame(['string', '0'], $array[$i++]);
         $this->assertSame(['string', ''], $array[$i++]);
-        $this->assertSame(['float', INF], $array[$i++]);
+        $this->assertSame(['float', \INF], $array[$i++]);
 
         // assertEquals() does not like NAN values.
         $this->assertEquals('float', $array[$i][0]);

Tests/ExceptionHandlerTest.php

@@ -64,7 +64,7 @@ content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgndGVzdDMnKTwvc2NyaXB0Pg"
         $handler->sendPhpResponse(new \RuntimeException($htmlWithXss));
         $response = ob_get_clean();
 
-        $this->assertStringContainsString(sprintf('<h1 class="break-long-words exception-message">%s</h1>', htmlspecialchars($htmlWithXss, ENT_COMPAT | ENT_SUBSTITUTE, 'UTF-8')), $response);
+        $this->assertStringContainsString(sprintf('<h1 class="break-long-words exception-message">%s</h1>', htmlspecialchars($htmlWithXss, \ENT_COMPAT | \ENT_SUBSTITUTE, 'UTF-8')), $response);
     }
 
     public function testStatusCode()
@@ -165,7 +165,7 @@ content="0;url=data:text/html;base64,PHNjcmlwdD5hbGVydCgndGVzdDMnKTwvc2NyaXB0Pg"
             $this->fail('OutOfMemoryException should bypass the handler');
         });
 
-        $handler->handle(new OutOfMemoryException('foo', 0, E_ERROR, __FILE__, __LINE__));
+        $handler->handle(new OutOfMemoryException('foo', 0, \E_ERROR, __FILE__, __LINE__));
 
         $this->assertThatTheExceptionWasOutput(ob_get_clean(), OutOfMemoryException::class, 'OutOfMemoryException', 'foo');
     }

Tests/FatalErrorHandler/ClassNotFoundFatalErrorHandlerTest.php

@@ -68,7 +68,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
         }
 
         $this->assertInstanceOf('Symfony\Component\Debug\Exception\ClassNotFoundException', $exception);
-        $this->assertEquals($translatedMessage, $exception->getMessage());
+        $this->assertMatchesRegularExpression($translatedMessage, $exception->getMessage());
         $this->assertSame($error['type'], $exception->getSeverity());
         $this->assertSame($error['file'], $exception->getFile());
         $this->assertSame($error['line'], $exception->getLine());
@@ -83,6 +83,15 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
         $debugClassLoader = new DebugClassLoader([$autoloader, 'loadClass']);
 
         return [
+            [
+                [
+                    'type' => 1,
+                    'line' => 12,
+                    'file' => 'foo.php',
+                    'message' => 'Class "WhizBangFactory" not found',
+                ],
+                "/^Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement\?$/",
+            ],
             [
                 [
                     'type' => 1,
@@ -90,7 +99,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'WhizBangFactory\' not found',
                 ],
-                "Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement?",
+                "/^Attempted to load class \"WhizBangFactory\" from the global namespace.\nDid you forget a \"use\" statement\?$/",
             ],
             [
                 [
@@ -99,7 +108,34 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\WhizBangFactory\' not found',
                 ],
-                "Attempted to load class \"WhizBangFactory\" from namespace \"Foo\\Bar\".\nDid you forget a \"use\" statement for another namespace?",
+                "/^Attempted to load class \"WhizBangFactory\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
+            ],
+            [
+                [
+                    'type' => 1,
+                    'line' => 12,
+                    'file' => 'foo.php',
+                    'message' => 'Class "Foo\\Bar\\WhizBangFactory" not found',
+                ],
+                "/^Attempted to load class \"WhizBangFactory\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
+            ],
+            [
+                [
+                    'type' => 1,
+                    'line' => 12,
+                    'file' => 'foo.php',
+                    'message' => 'Interface "Foo\\Bar\\WhizBangInterface" not found',
+                ],
+                "/^Attempted to load interface \"WhizBangInterface\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
+            ],
+            [
+                [
+                    'type' => 1,
+                    'line' => 12,
+                    'file' => 'foo.php',
+                    'message' => 'Trait "Foo\\Bar\\WhizBangTrait" not found',
+                ],
+                "/^Attempted to load trait \"WhizBangTrait\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
             ],
             [
                 [
@@ -108,7 +144,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'UndefinedFunctionException\' not found',
                 ],
-                "Attempted to load class \"UndefinedFunctionException\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                "/^Attempted to load class \"UndefinedFunctionException\" from the global namespace.\nDid you forget a \"use\" statement for .*\"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -118,7 +154,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'PEARClass\' not found',
                 ],
-                "Attempted to load class \"PEARClass\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony_Component_Debug_Tests_Fixtures_PEARClass\"?",
+                "/^Attempted to load class \"PEARClass\" from the global namespace.\nDid you forget a \"use\" statement for \"Symfony_Component_Debug_Tests_Fixtures_PEARClass\"\?$/",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -128,7 +164,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for .*\"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -138,7 +174,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for \"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?$/",
                 [$autoloader, 'loadClass'],
             ],
             [
@@ -148,7 +184,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for \"Symfony\\\\Component\\\\Debug\\\\Exception\\\\UndefinedFunctionException\"\?/",
                 [$debugClassLoader, 'loadClass'],
             ],
             [
@@ -158,7 +194,7 @@ class ClassNotFoundFatalErrorHandlerTest extends TestCase
                     'file' => 'foo.php',
                     'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
                 ],
-                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\Bar\".\nDid you forget a \"use\" statement for another namespace?",
+                "/^Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\\\Bar\".\nDid you forget a \"use\" statement for another namespace\?$/",
                 function ($className) { /* do nothing here */ },
             ],
         ];

composer.json

@@ -32,10 +32,5 @@
             "/Tests/"
         ]
     },
-    "minimum-stability": "dev",
-    "extra": {
-        "branch-alias": {
-            "dev-master": "4.4-dev"
-        }
-    }
+    "minimum-stability": "dev"
 }