3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ('e' => 22, 'r' => 66); $b = ('t' => 65); print_r(array_merge($a, $b));

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)
5.4.260.0030.05718.95
5.4.250.0100.05719.00
5.4.240.0070.05318.90
5.4.230.0170.06019.09
5.4.220.0100.06018.98
5.4.210.0130.04718.80
5.4.200.0170.04318.80
5.4.190.0170.04319.05
5.4.180.0030.08018.96
5.4.170.0070.07019.02
5.4.160.0030.05718.73
5.4.150.0130.05319.08
5.4.140.0100.05016.31
5.4.130.0070.05316.45
5.4.120.0100.04716.39
5.4.110.0130.05716.33
5.4.100.0070.05016.62
5.4.90.0070.05016.52
5.4.80.0130.04316.55
5.4.70.0070.05716.42
5.4.60.0170.04716.34
5.4.50.0070.05016.45
5.4.40.0030.05316.38
5.4.30.0100.07016.33
5.4.20.0130.04316.54
5.4.10.0100.07016.50
5.4.00.0130.06315.81
5.3.280.0070.06714.64
5.3.270.0070.06714.61
5.3.260.0170.04314.65
5.3.250.0130.06014.46
5.3.240.0030.05714.46
5.3.230.0030.05314.38
5.3.220.0100.06014.59
5.3.210.0070.05014.57
5.3.200.0100.06714.57
5.3.190.0070.05714.59
5.3.180.0100.05714.58
5.3.170.0030.08014.45
5.3.160.0170.06714.57
5.3.150.0070.05014.56
5.3.140.0070.05014.65
5.3.130.0070.05014.57
5.3.120.0170.05014.56
5.3.110.0200.04314.56
5.3.100.0030.05714.04
5.3.90.0070.07314.04
5.3.80.0170.05713.72
5.3.70.0170.04714.05
5.3.60.0070.06314.02
5.3.50.0200.05013.96
5.3.40.0100.05313.72
5.3.30.0030.05313.92
5.3.20.0030.05013.61
5.3.10.0070.04713.49
5.3.00.0070.05313.68
5.2.170.0070.04311.04
5.2.160.0030.04311.24
5.2.150.0070.06011.15
5.2.140.0070.04011.14
5.2.130.0130.04311.12
5.2.120.0170.04310.86
5.2.110.0000.04311.11
5.2.100.0070.05711.00
5.2.90.0100.03311.10
5.2.80.0070.04011.02
5.2.70.0000.04711.24
5.2.60.0100.05710.95
5.2.50.0070.04010.78
5.2.40.0130.04311.00
5.2.30.0130.05010.89
5.2.20.0000.04311.05
5.2.10.0070.03710.92
5.2.00.0030.04010.55
5.1.60.0030.0379.84
5.1.50.0030.03310.01
5.1.40.0100.04310.21
5.1.30.0100.03310.10
5.1.20.0070.03310.36
5.1.10.0070.0439.83
5.1.00.0030.03310.09
5.0.50.0070.0238.50
5.0.40.0030.0278.45
5.0.30.0100.0378.15
5.0.20.0030.0278.02
5.0.10.0100.0207.99
5.0.00.0030.0478.15
4.4.90.0030.0206.99
4.4.80.0070.0176.99
4.4.70.0030.0206.99
4.4.60.0070.0176.99
4.4.50.0030.0206.99
4.4.40.0070.0306.99
4.4.30.0000.0236.99
4.4.20.0070.0176.99
4.4.10.0000.0236.99
4.4.00.0030.0336.99
4.3.110.0030.0236.99
4.3.100.0100.0206.99
4.3.90.0030.0306.99
4.3.80.0070.0276.99
4.3.70.0070.0236.99
4.3.60.0070.0136.99
4.3.50.0000.0236.99
4.3.40.0030.0306.99
4.3.30.0000.0236.99
4.3.20.0000.0236.99
4.3.10.0030.0206.99
4.3.00.0200.0277.13

preferences:
143.21 ms | 1394 KiB | 7 Q