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run code in 150+ php & hhvm versions
Bugs & Features
<?php $arr = [ ['p' => 10], ['p' => 20] ]; usort($arr, function($a,$b){ return $a['p']>$b['p']; }) var_dump($arr);
Output for 5.4.0 - 5.4.22
Parse error: syntax error, unexpected 'var_dump' (T_STRING) in /in/0S6aU on line 9
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected '[' in /in/0S6aU on line 3
Process exited with code 255.