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<?php $a = array(); unset('ttt', $a) ?>
Output for 7.0.0
Parse error: syntax error, unexpected ',', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/3Kegc on line 4
Process exited with code 255.
Output for 5.5.24 - 5.5.30, 5.6.8 - 5.6.16
Parse error: syntax error, unexpected ''ttt'' (T_CONSTANT_ENCAPSED_STRING) in /in/3Kegc on line 4
Process exited with code 255.

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