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run code in 300+ PHP versions simultaneously
<?php $a = 'foo'; var_dump($a); $a = (unset); var_dump($a);
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.20
Parse error: syntax error, unexpected ';' in /in/nti96 on line 7
Process exited with code 255.

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