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run code in 150+ php & hhvm versions
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<?php $array = array(0=>array('date'=>'2014-12-01', 'price'=>'123.00'), array('date'=>'2013-12-01', 'price'=>'123.00'), array('date'=>'2014-02-01', 'price'=>'123.00'), array('date'=>'2014-03-01', 'price'=>'123.00')) var_dump($array); function sortByDate($a, $b) { return $a['date'] - $b['date']; } usort($array, 'sortByDate'); var_dump($array);
Output for 5.4.0 - 5.4.26
Parse error: syntax error, unexpected 'var_dump' (T_STRING) in /in/5SEMH on line 4
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_STRING in /in/5SEMH on line 4
Process exited with code 255.