3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; $b = &(unset) $a; var_dump($a, $b);
Output for 5.4.0 - 5.4.25
Parse error: syntax error, unexpected '(unset)' (unset) (T_UNSET_CAST) in /in/JRrDh on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_UNSET_CAST in /in/JRrDh on line 4
Process exited with code 255.
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