3v4l.org

run code in 300+ PHP versions simultaneously
<?php $Arrr = array("Physik I~1"); $A = count($Arrr) > 0 ? "µ".implode("µµ", $Arrr)."µ" : ""; print_r($A); $Ar = explode("µµ", substr($A, 2, -2)); print_r($Ar); $A = count($Arrr) > 0 ? "µ".implode("µµ", $Arrr)."µ" : ""; print_r($A); $Ar = explode("µµ", substr($A, 2, -2)); print_r($Ar); print_r(explode("~", $Ar[0])); $A = count($Arrr) > 0 ? "µ".implode("µµ", $Arrr)."µ" : ""; print_r($A);
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
µPhysik I~1µArray ( [0] => Physik I~1 ) µPhysik I~1µArray ( [0] => Physik I~1 ) Array ( [0] => Physik I [1] => 1 ) µPhysik I~1µ

preferences:
267.94 ms | 406 KiB | 459 Q