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run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(date('Y-m-d', strtotime('monday last week')));
Output for 5.3.0 - 7.2.0
string(10) "2014-02-10"
Output for 4.3.0 - 5.2.17
string(10) "2014-02-17"