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run code in 150+ php & hhvm versions
Bugs & Features
<?php $c = []; $a0 = array_shift($c) ? array_shift($c) : 'a0'; $b0 = array_shift($c) ?: 'b0'; $d = [42]; $a1 = array_shift($d) ? array_shift($d) : 'a1'; $b1 = array_shift($d) ?: 'b1';
Output for 5.4.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/kNk5F on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/kNk5F on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/kNk5F on line 2
Process exited with code 255.