3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { public $x=[1, 2, 3]; } $cycles = 10000; $t = microtime(true); for ($i=0;$i<$cycles;$i++) { $f = new foo; } $t = microtime(true); echo intval($t*1000);
Output for 7.2.1 - 7.2.3, 7.2.5 - 7.2.6, 7.2.8, 7.2.10, 7.2.12 - 7.2.16, 7.2.18 - 7.2.19, 7.2.21, 7.2.24, 7.2.26, 7.3.1 - 7.3.4, 7.3.7, 7.3.9, 7.4.0 - 7.4.1
1563419640000
Output for 7.1.2 - 7.1.4, 7.1.8 - 7.1.10, 7.1.12, 7.1.16 - 7.1.18, 7.1.20 - 7.1.23, 7.1.25, 7.1.27 - 7.1.28, 7.1.31, 7.2.0, 7.2.4, 7.2.7, 7.2.9, 7.2.11, 7.2.17, 7.2.20, 7.2.22 - 7.2.23, 7.2.25, 7.3.0, 7.3.5 - 7.3.6, 7.3.8, 7.3.10 - 7.3.13
1563419640001
Output for 7.1.0 - 7.1.1, 7.1.6 - 7.1.7, 7.1.11, 7.1.13 - 7.1.15, 7.1.19, 7.1.24, 7.1.29 - 7.1.30, 7.1.32 - 7.1.33
1563419640002
Output for 7.1.5, 7.1.26
1563419640003
preferences:
100.71 ms | 401 KiB | 82 Q