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<?php $birthday = '12/07/1984'; $dt = DateTime::createFromFormat('U',time())->diff(DateTime::createFromFormat('m/d/Y',$birthday))->format('Y-m-d'); var_dump($dt);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.8
string(5) "Y-m-d"
preferences:
90.72 ms | 402 KiB | 89 Q