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25cb9cdb79
Closes GH-8233
This fix corrects a behavior of `var_export()` that was mostly "hidden" until PHP 8.1 introduced:
* properties with object initializers
* constants containing object references
* default values of class properties containing `enum`s
Since `var_export(..., true)` is mostly used in conjunction with code generation,
and we cannot make assumptions about the generated code being placed in the root
namespace, we must always provide the FQCN of a class in exported code.
For example:
```php
<?php
namespace MyNamespace { class Foo {} }
namespace { echo "<?php\n\nnamespace Example;\n\n" . var_export(new \MyNamespace\Foo(), true) . ';'; }
```
produces:
```php
<?php
namespace Example;
MyNamespace\Foo::__set_state(array(
));
```
This code snippet is invalid, because `Example\MyNamespace\Foo::__set_state()` (which
does not exist) is called.
With this patch applied, the code looks like following (valid):
```php
<?php
namespace Example;
\MyNamespace\Foo::__set_state(array(
));
```
Ref: https://github.com/php/php-src/issues/8232
Ref: https://github.com/Ocramius/ProxyManager/issues/754
Ref: https://externals.io/message/117466
36 lines
750 B
PHP
36 lines
750 B
PHP
--TEST--
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SPL: FixedArray: Infinite loop in var_export bugfix
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--FILE--
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<?php
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call_user_func(function () {
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$x = new SplFixedArray(4);
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$x[0] = NAN; // Test NAN just in case this check is incorrectly refactored to use zend_is_identical
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$x[1] = 0.0;
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$x[2] = $x;
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$x[3] = $x;
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var_export($x);
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echo "\n";
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$x[1] = -0.0;
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debug_zval_dump($x);
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});
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?>
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--EXPECTF--
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Warning: var_export does not handle circular references in %s on line 8
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Warning: var_export does not handle circular references in %s on line 8
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\SplFixedArray::__set_state(array(
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0 => NAN,
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1 => 0.0,
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2 => NULL,
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3 => NULL,
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))
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object(SplFixedArray)#2 (4) refcount(6){
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[0]=>
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float(NAN)
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[1]=>
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float(-0)
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[2]=>
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*RECURSION*
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[3]=>
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*RECURSION*
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}
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