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run code in 150+ php & hhvm versions
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<?php $a = new array(); $a[0] = "a"; $a[1] = "b"; $a[2] = "c"; $a[ $a[ $a[ $a[ $a[ $a[ ?>
Output for 5.4.0 - 5.4.17
Parse error: syntax error, unexpected 'array' (T_ARRAY) in /in/651C3 on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_ARRAY in /in/651C3 on line 2
Process exited with code 255.