3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array('e' => 22, 'r' => 66, 't' => 88); $b = array('t' => 65); print_r(array_merge($a, $b)); array_walk($a, function(&$value) { $value = 'e ' + $value); }); print_r($a)

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)
5.4.260.0170.04318.95
5.4.250.0130.05718.95
5.4.240.0070.05318.96
5.4.230.0070.05318.74
5.4.220.0070.05718.95
5.4.210.0100.05718.83
5.4.200.0030.05318.76
5.4.190.0170.04318.90
5.4.180.0070.05018.96
5.4.170.0030.06319.06
5.4.160.0070.07718.95
5.4.150.0130.06018.95
5.4.140.0000.08016.48
5.4.130.0070.05016.51
5.4.120.0170.04716.51
5.4.110.0070.05016.49
5.4.100.0030.05716.56
5.4.90.0070.04716.46
5.4.80.0130.04016.54
5.4.70.0070.05316.44
5.4.60.0130.04316.59
5.4.50.0070.05016.32
5.4.40.0100.06016.65
5.4.30.0130.04316.39
5.4.20.0070.05316.44
5.4.10.0130.06716.34
5.4.00.0070.05315.98
5.3.280.0070.05014.68
5.3.270.0070.06014.57
5.3.260.0100.06314.68
5.3.250.0130.06714.43
5.3.240.0170.06014.58
5.3.230.0030.06014.57
5.3.220.0070.07314.55
5.3.210.0070.05314.57
5.3.200.0070.05014.57
5.3.190.0030.05714.39
5.3.180.0000.05714.54
5.3.170.0000.05714.73
5.3.160.0230.06314.70
5.3.150.0200.04314.57
5.3.140.0030.05314.46
5.3.130.0100.05314.63
5.3.120.0030.05714.52
5.3.110.0030.05314.62
5.3.100.0170.04714.12
5.3.90.0070.05014.00
5.3.80.0100.04714.13
5.3.70.0100.04714.10
5.3.60.0100.04714.06
5.3.50.0070.05013.96
5.3.40.0170.05013.85
5.3.30.0130.06313.74
5.3.20.0100.04313.77
5.3.10.0000.06013.73
5.3.00.0070.05713.47
5.2.170.0030.04310.91
5.2.160.0100.05311.14
5.2.150.0030.06311.15
5.2.140.0000.04711.03
5.2.130.0000.04711.10
5.2.120.0070.05711.11
5.2.110.0070.04311.02
5.2.100.0130.05311.10
5.2.90.0100.03711.19
5.2.80.0130.03310.99
5.2.70.0100.03710.97
5.2.60.0130.03311.06
5.2.50.0030.04711.13
5.2.40.0130.03311.00
5.2.30.0070.05710.88
5.2.20.0070.05310.88
5.2.10.0130.04311.01
5.2.00.0030.04710.65
5.1.60.0130.04010.15
5.1.50.0000.04010.02
5.1.40.0130.02710.04
5.1.30.0070.04710.41
5.1.20.0100.03710.18
5.1.10.0070.03710.11
5.1.00.0170.0339.98
5.0.50.0030.0378.69
5.0.40.0030.0278.26
5.0.30.0000.0638.25
5.0.20.0070.0238.17
5.0.10.0000.0378.26
5.0.00.0100.0508.15
4.4.90.0030.0276.35
4.4.80.0030.0236.35
4.4.70.0000.0336.35
4.4.60.0000.0276.35
4.4.50.0030.0236.35
4.4.40.0030.0336.35
4.4.30.0130.0176.35
4.4.20.0070.0206.34
4.4.10.0000.0235.82
4.4.00.0030.0335.79
4.3.110.0000.0275.72
4.3.100.0030.0205.72
4.3.90.0000.0205.72
4.3.80.0000.0335.72
4.3.70.0030.0205.72
4.3.60.0000.0205.72
4.3.50.0030.0205.72
4.3.40.0070.0275.72
4.3.30.0000.0235.72
4.3.20.0030.0205.72
4.3.10.0000.0235.72
4.3.00.0100.0276.99

preferences:
142.87 ms | 1394 KiB | 7 Q