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<?php $files = array('2014-Aug','2014-Jan','2013-Dec'); function sortFileNamesWithMonths($a,$b) { $a_date = DateTime::createFromFormat('Y-M',$a); $b_date = DateTime::createFromFormat('Y-M',$b); if ($a_date > $b_date) { return 1; } elseif ($a_date < $b_date) { return -1; } else { return 0; } } usort($files,'sortFileNamesWithMonths'); var_dump($files);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(3) { [0]=> string(8) "2013-Dec" [1]=> string(8) "2014-Jan" [2]=> string(8) "2014-Aug" }
Output for 5.2.10 - 5.2.17
Fatal error: Call to undefined method DateTime::createFromFormat() in /in/WSaS3 on line 6
Process exited with code 255.
Output for 5.2.0 - 5.2.9
Fatal error: Call to undefined method DateTime::createfromformat() in /in/WSaS3 on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/WSaS3 on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Undefined class name 'datetime' in /in/WSaS3 on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Undefined class name 'datetime' in /in/WSaS3 on line 6

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