3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a' => 3, 'b' => 5, 'c' => 6]; $b = ['b' => 8, 'a' => 4]; $all = [$a, $b]; $a1 = array_column($all', 'a'); print_r($a1);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
7.0.20.0400.07320.12
7.0.10.0030.05720.19
7.0.00.0070.07020.05
5.6.170.0370.08020.53
5.6.160.0130.08020.59
5.6.150.0070.06018.29
5.6.140.0130.05318.15
5.6.130.0130.07718.20
5.6.120.0000.07321.03
5.6.110.0200.06321.11
5.6.100.0070.07721.08
5.6.90.0070.08020.96
5.6.80.0100.07320.38
5.5.310.0400.05720.19
5.5.300.0070.07317.96
5.5.290.0030.08317.98
5.5.280.0170.07320.96
5.5.270.0170.06720.86
5.5.260.0070.08320.96
5.5.250.0030.08320.57
5.5.240.0200.08020.03

preferences:
139.05 ms | 1394 KiB | 7 Q