php-src/Zend/tests/enum/enum-in-var-export.phpt
Marco Pivetta 25cb9cdb79
Fix GH-8232 - always reference classes in var_export() via their FQCN
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
2022-04-23 11:06:21 +02:00

28 lines
389 B
PHP

--TEST--
Enum in var_export()
--FILE--
<?php
namespace {
enum Foo { case BAR; }
}
namespace A {
enum Foo { case BAR; }
}
namespace A\B {
enum Foo { case BAR; }
}
namespace Test {
echo var_export(\Foo::BAR, true) . "\n";
echo var_export(\A\Foo::BAR, true) . "\n";
echo var_export(\A\B\Foo::BAR, true) . "\n";
}
?>
--EXPECT--
\Foo::BAR
\A\Foo::BAR
\A\B\Foo::BAR