3v4l.org

run code in 300+ PHP versions simultaneously
<?php If(date("N")>1){ $w = date("W")+2; }Else{ $w =date("W")+1; } $y = date("Y"); $d = date("Y\WWN", strtotime($y . "W" . $w . "2")); For($i=1; $i<7;$i++){ Echo date("Y-m-d", strtotime($d)+(86400*7)*$i) ."\n"; }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 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
2018-07-03 2018-07-10 2018-07-17 2018-07-24 2018-07-31 2018-08-07
preferences:
137.87 ms | 408 KiB | 5 Q