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<?php $a = 123; $b = 123; $c = 123; $d = 123; unset($a); var_dump($a); $b = unset($b); var_dump($b); (unset)$c; var_dump($c); $d = (unset) $d; var_dump($d);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.7
Parse error: syntax error, unexpected 'unset' (T_UNSET) in /in/GvuRq on line 10
Process exited with code 255.
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165.83 ms | 1395 KiB | 36 Q