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run code in 150+ php & hhvm versions
Bugs & Features
<?php $originalObj = new A; class A { public $foo = 'default value'; } // Important note: If you remove the &, the bug disappears. function changeFooWithUnusedReference( &$unusedReferenceToFoo, $newValue ) { global $originalObj; $newObj = clone $originalObj; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; $newObj->foo = $newValue; echo $originalObj->foo . "\n"; echo $newObj->foo . "\n"; } changeFooWithUnusedReference( $originalObj->foo, 'Some other value' );
Output for 5.0.0 - 7.1.0
default value default value Some other value Some other value
Output for 4.4.2 - 4.4.9
<br /> <b>Parse error</b>: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/uicMd</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
<br /> <b>Parse error</b>: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in <b>/in/uicMd</b> on line <b>4</b><br />
Process exited with code 255.
Output for 4.3.2 - 4.3.4
<br /> <b>Parse error</b>: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in <b>/in/uicMd</b> on line <b>4</b><br />
Process exited with code 255.