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<?php $date = 16; $day = "Wednesday"; $x=0; $start = date("Y-m-") . $date; While(date("l", strtotime($start ."-" .$x . "months")) != $day){ $x++; } Echo $x . " months ago.";
Output for 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
0 months ago.
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159.64 ms | 408 KiB | 5 Q