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0425027115
Document two new predefined constants introduced in PHP 8.5.0: - PHP_BUILD_DATE: Returns the date and time when PHP was built - PHP_BUILD_PROVIDER: Returns the provider who built PHP --------- Co-authored-by: Tim Düsterhus <timwolla@googlemail.com>
749 lines
18 KiB
XML
749 lines
18 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<sect2 xml:id="reserved.constants.core" xmlns="http://docbook.org/ns/docbook">
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<title>Core Predefined Constants</title>
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<simpara>
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These constants are defined by the PHP core. This includes PHP,
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the Zend engine, and SAPI modules.
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</simpara>
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<variablelist>
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<varlistentry xml:id="constant.php-version">
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<term>
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<constant>PHP_VERSION</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The current PHP version as a string in
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"major.minor.release[extra]" notation.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-major-version">
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<term>
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<constant>PHP_MAJOR_VERSION</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The current PHP "major" version as an integer (e.g., int(5)
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from version "5.2.7-extra").
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-minor-version">
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<term>
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<constant>PHP_MINOR_VERSION</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The current PHP "minor" version as an integer (e.g., int(2)
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from version "5.2.7-extra").
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-release-version">
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<term>
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<constant>PHP_RELEASE_VERSION</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The current PHP "release" version as an integer (e.g., int(7)
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from version "5.2.7-extra").
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-version-id">
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<term>
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<constant>PHP_VERSION_ID</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The current PHP version as an integer, useful for
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version comparisons (e.g., int(50207) from version "5.2.7-extra").
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-extra-version">
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<term>
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<constant>PHP_EXTRA_VERSION</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The current PHP "extra" version as a string (e.g., '-extra'
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from version "5.2.7-extra"). Often used by distribution
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vendors to indicate a package version.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-build-date">
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<term>
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<constant>PHP_BUILD_DATE</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The date and time when PHP was built, in <literal>"M d Y H:i:s"</literal> format. Available as of PHP 8.5.0.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-build-provider">
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<term>
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<constant>PHP_BUILD_PROVIDER</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The provider who built PHP. Available as of PHP 8.5.0.
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</simpara>
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<note>
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<simpara>
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This constant may not be available in all builds of PHP. (e.g., not set when
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building from source without specifying a value during configuration).
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</simpara>
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</note>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.zend-thread-safe">
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<term>
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<constant>ZEND_THREAD_SAFE</constant>
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(<type>bool</type>)
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</term>
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<listitem>
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<simpara>
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Indicates whether the current build of PHP is thread safe.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.zend-debug-build">
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<term>
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<constant>ZEND_DEBUG_BUILD</constant>
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(<type>bool</type>)
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</term>
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<listitem>
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<simpara>
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Indicates whether the current build of PHP is a debug build.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-zts">
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<term>
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<constant>PHP_ZTS</constant>
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(<type>bool</type>)
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&Alias; <constant>ZEND_THREAD_SAFE</constant>
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</term>
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<listitem>
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<simpara>
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Indicates whether the current build of PHP is thread safe.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-debug">
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<term>
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<constant>PHP_DEBUG</constant>
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(<type>bool</type>)
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&Alias; <constant>ZEND_DEBUG_BUILD</constant>
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</term>
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<listitem>
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<simpara>
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Indicates whether the current build of PHP is a debug build.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.debug-backtrace-provide-object">
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<term>
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<constant>DEBUG_BACKTRACE_PROVIDE_OBJECT</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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Populate the "object" index.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.debug-backtrace-ignore-args">
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<term>
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<constant>DEBUG_BACKTRACE_IGNORE_ARGS</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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Don't include the argument information for functions in the stack trace.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-maxpathlen">
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<term>
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<constant>PHP_MAXPATHLEN</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The maximum length of filenames (including path) supported
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by this build of PHP.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-os">
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<term>
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<constant>PHP_OS</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The operating system PHP was built for.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-os-family">
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<term>
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<constant>PHP_OS_FAMILY</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The operating system family PHP was built for. One of
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<literal>'Windows'</literal>, <literal>'BSD'</literal>,
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<literal>'Darwin'</literal>, <literal>'Solaris'</literal>,
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<literal>'Linux'</literal> or <literal>'Unknown'</literal>.
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Available as of PHP 7.2.0.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-sapi">
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<term>
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<constant>PHP_SAPI</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The Server API for this build of PHP.
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See also <function>php_sapi_name</function>.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-eol">
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<term>
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<constant>PHP_EOL</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The correct 'End Of Line' symbol for this platform.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-int-max">
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<term>
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<constant>PHP_INT_MAX</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The largest integer supported in this build of PHP. Usually int(2147483647)
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in 32 bit systems and int(9223372036854775807) in 64 bit systems.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-int-min">
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<term>
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<constant>PHP_INT_MIN</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The smallest integer supported in this build of PHP. Usually int(-2147483648) in 32 bit systems and
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int(-9223372036854775808) in 64 bit systems.
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Usually, PHP_INT_MIN === ~PHP_INT_MAX.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-int-size">
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<term>
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<constant>PHP_INT_SIZE</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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The size of an integer in bytes in this build of PHP.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-float-dig">
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<term>
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<constant>PHP_FLOAT_DIG</constant>
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(<type>int</type>)
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</term>
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<listitem>
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<simpara>
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Number of decimal digits that can be rounded into a float and back
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without precision loss.
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Available as of PHP 7.2.0.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-float-epsilon">
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<term>
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<constant>PHP_FLOAT_EPSILON</constant>
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(<type>float</type>)
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</term>
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<listitem>
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<simpara>
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Smallest representable positive number x, so that <literal>x + 1.0 !=
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1.0</literal>.
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Available as of PHP 7.2.0.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-float-min">
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<term>
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<constant>PHP_FLOAT_MIN</constant>
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(<type>float</type>)
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</term>
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<listitem>
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<simpara>
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Smallest representable <emphasis>positive</emphasis> floating point number.
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If you need the smallest representable <emphasis>negative</emphasis> floating point number, use <literal>- PHP_FLOAT_MAX</literal>.
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Available as of PHP 7.2.0.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-float-max">
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<term>
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<constant>PHP_FLOAT_MAX</constant>
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(<type>float</type>)
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</term>
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<listitem>
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<simpara>
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Largest representable floating point number.
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Available as of PHP 7.2.0.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.default-include-path">
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<term>
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<constant>DEFAULT_INCLUDE_PATH</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.pear-install-dir">
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<term>
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<constant>PEAR_INSTALL_DIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.pear-extension-dir">
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<term>
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<constant>PEAR_EXTENSION_DIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-extension-dir">
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<term>
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<constant>PHP_EXTENSION_DIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The default directory where to look for dynamically loadable extensions
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(unless overridden by <link linkend="ini.extension-dir">extension_dir</link>).
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Defaults to <constant>PHP_PREFIX</constant> (or <code>PHP_PREFIX . "\\ext"</code> on Windows).
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-prefix">
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<term>
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<constant>PHP_PREFIX</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The value <option role="configure">--prefix</option> was set to at configure.
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On Windows, it is the value <option role="configure">--with-prefix</option>
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was set to at configure.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-bindir">
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<term>
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<constant>PHP_BINDIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The value <option role="configure">--bindir</option> was set to at configure.
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On Windows, it is the value <option role="configure">--with-prefix</option>
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was set to at configure.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-sbindir">
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<term>
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<constant>PHP_SBINDIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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The value <option role="configure">--sbindir</option> was set to at configure.
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On Windows, it is the value <option role="configure">--with-prefix</option>
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was set to at configure. Available as of PHP 8.4.0.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-binary">
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<term>
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<constant>PHP_BINARY</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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Specifies the PHP binary path during script execution.
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-mandir">
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<term>
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<constant>PHP_MANDIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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Specifies where the manpages were installed into.
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</simpara>
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<note>
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<simpara>
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This constant is not present on Windows builds of PHP.
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</simpara>
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</note>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-libdir">
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<term>
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<constant>PHP_LIBDIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-datadir">
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<term>
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|
<constant>PHP_DATADIR</constant>
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|
(<type>string</type>)
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</term>
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|
<listitem>
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<simpara>
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|
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|
</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-sysconfdir">
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|
<term>
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<constant>PHP_SYSCONFDIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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|
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</simpara>
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</listitem>
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</varlistentry>
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<varlistentry xml:id="constant.php-localstatedir">
|
|
<term>
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|
<constant>PHP_LOCALSTATEDIR</constant>
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(<type>string</type>)
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</term>
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<listitem>
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<simpara>
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|
</simpara>
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</listitem>
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|
</varlistentry>
|
|
<varlistentry xml:id="constant.php-config-file-path">
|
|
<term>
|
|
<constant>PHP_CONFIG_FILE_PATH</constant>
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|
(<type>string</type>)
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|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
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|
</simpara>
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|
</listitem>
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|
</varlistentry>
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|
<varlistentry xml:id="constant.php-config-file-scan-dir">
|
|
<term>
|
|
<constant>PHP_CONFIG_FILE_SCAN_DIR</constant>
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|
(<type>string</type>)
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|
</term>
|
|
<listitem>
|
|
<simpara>
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</simpara>
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</listitem>
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</varlistentry>
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|
<varlistentry xml:id="constant.php-shlib-suffix">
|
|
<term>
|
|
<constant>PHP_SHLIB_SUFFIX</constant>
|
|
(<type>string</type>)
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|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
The build-platform's shared library suffix, such as "so" (most Unixes)
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or "dll" (Windows).
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|
</simpara>
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|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.php-fd-setsize">
|
|
<term>
|
|
<constant>PHP_FD_SETSIZE</constant>
|
|
(<type>int</type>)
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|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
The maximum number of file descriptors for select system calls. Available
|
|
as of PHP 7.1.0.
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|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
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<varlistentry>
|
|
<term>
|
|
<constant>E_ERROR</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_WARNING</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_PARSE</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_NOTICE</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_CORE_ERROR</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_CORE_WARNING</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_COMPILE_ERROR</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_COMPILE_WARNING</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_USER_ERROR</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_USER_WARNING</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_USER_NOTICE</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_RECOVERABLE_ERROR</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_DEPRECATED</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_USER_DEPRECATED</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_ALL</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<term>
|
|
<constant>E_STRICT</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
<link linkend="errorfunc.constants">Error reporting constants</link>
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term>
|
|
<constant>__COMPILER_HALT_OFFSET__</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.true">
|
|
<term>
|
|
&true;
|
|
(<type>bool</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
See <link linkend="language.types.boolean">Booleans</link>.
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.false">
|
|
<term>
|
|
&false;
|
|
(<type>bool</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
See <link linkend="language.types.boolean">Booleans</link>.
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.null">
|
|
<term>
|
|
&null;
|
|
(<type>null</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
See <link linkend="language.types.null">Null</link>.
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.php-windows-event-ctrl-c">
|
|
<term>
|
|
<constant>PHP_WINDOWS_EVENT_CTRL_C</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
A Windows
|
|
<keycombo action='simul'>
|
|
<keycap>CTRL</keycap>
|
|
<keycap>C</keycap>
|
|
</keycombo>
|
|
event.
|
|
Available as of PHP 7.4.0 (Windows only).
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.php-windows-event-ctrl-break">
|
|
<term>
|
|
<constant>PHP_WINDOWS_EVENT_CTRL_BREAK</constant>
|
|
(<type>int</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
A Windows
|
|
<keycombo action='simul'>
|
|
<keycap>CTRL</keycap>
|
|
<keycap>BREAK</keycap>
|
|
</keycombo>
|
|
event.
|
|
Available as of PHP 7.4.0 (Windows only).
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.php-cli-process-title">
|
|
<term>
|
|
<constant>PHP_CLI_PROCESS_TITLE</constant>
|
|
(<type>bool</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
Indicates whether the setting and getting of the process title is available.
|
|
Available only under the CLI SAPI.
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.stderr">
|
|
<term>
|
|
<constant>STDERR</constant>
|
|
(<type>resource</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
An already opened stream to <literal>stderr</literal>.
|
|
Available only under the CLI SAPI.
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.stdin">
|
|
<term>
|
|
<constant>STDIN</constant>
|
|
(<type>resource</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
An already opened stream to <literal>stdin</literal>.
|
|
Available only under the CLI SAPI.
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry xml:id="constant.stdout">
|
|
<term>
|
|
<constant>STDOUT</constant>
|
|
(<type>resource</type>)
|
|
</term>
|
|
<listitem>
|
|
<simpara>
|
|
An already opened stream to <literal>stdout</literal>.
|
|
Available only under the CLI SAPI.
|
|
</simpara>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
<simpara>
|
|
See also: <link linkend="language.constants.magic">Magic
|
|
constants</link>.
|
|
</simpara>
|
|
</sect2>
|
|
<!-- Keep this comment at the end of the file
|
|
Local variables:
|
|
mode: sgml
|
|
sgml-omittag:t
|
|
sgml-shorttag:t
|
|
sgml-minimize-attributes:nil
|
|
sgml-always-quote-attributes:t
|
|
sgml-indent-step:1
|
|
sgml-indent-data:t
|
|
indent-tabs-mode:nil
|
|
sgml-parent-document:nil
|
|
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
|
|
sgml-exposed-tags:nil
|
|
sgml-local-catalogs:nil
|
|
sgml-local-ecat-files:nil
|
|
End:
|
|
-->
|