3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a 'foo'; var_dump($a); (unset) $a; var_dump($a);
Output for 5.4.0 - 5.4.20
Parse error: syntax error, unexpected ''foo'' (T_CONSTANT_ENCAPSED_STRING) in /in/2ripJ on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_CONSTANT_ENCAPSED_STRING in /in/2ripJ on line 3
Process exited with code 255.
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