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run code in 200+ php & hhvm versions
Bugs & Features
<?php echo date("M-d-Y-W", mktime(0, 0, 0, 01, 01, 2016)); echo " - "; echo strftime("%G", mktime(0, 0, 0, 01, 01, 2016));
based on vjlvj
Output for 5.5.0 - 7.3.0rc4
Jan-01-2016-53 - 2015