3v4l.org

run code in 300+ PHP versions simultaneously
<?php function id($n=6) { $c = 'abcdefghijklmnopqrstuvwxyz0123456789'; for ($x=0,$r=null;$x<$n;$x++) { $r .= $c[mt_rand(0, strlen($c) - 1)]; } return $r; } echo id(11);

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)
7.2.00.0040.00919.39
7.1.70.0070.01017.30
7.1.60.0230.00315.59
7.1.50.0060.01516.79
7.1.00.0070.07322.43
7.0.200.0030.00916.68
7.0.140.0000.07322.02
7.0.60.0070.08719.92
7.0.50.0030.05717.84
7.0.40.0100.04020.13
7.0.30.0300.05020.14
7.0.20.0330.07320.33
7.0.10.0100.08720.12
7.0.00.0070.07020.20
5.6.280.0030.07320.82
5.6.210.0030.04020.61
5.6.200.0000.06718.29
5.6.190.0100.07720.55
5.6.180.0200.04320.64
5.6.170.0200.08320.44
5.6.160.0070.07320.56
5.6.150.0100.03718.18
5.6.140.0130.07018.12
5.6.130.0070.03718.15
5.6.120.0170.05320.99
5.6.110.0130.07721.02
5.6.100.0070.06721.04
5.6.90.0000.05721.13
5.6.80.0100.04720.41
5.5.350.0170.04320.30
5.5.340.0070.08318.09
5.5.330.0100.05320.27
5.5.320.0070.06020.34
5.5.310.0200.08020.27
5.5.300.0070.08017.91
5.5.290.0070.08017.99
5.5.280.0070.06020.80
5.5.270.0030.06720.77
5.5.260.0170.07720.73
5.5.250.0130.06320.69
5.5.240.0070.04320.29
5.4.450.0270.04719.46
5.4.440.0900.05319.48
5.4.430.0630.05719.46
5.4.420.0230.07719.47
5.4.410.0770.06019.49
5.4.400.0830.06719.13
5.4.390.0930.06319.01
5.4.380.1100.05318.59
5.4.370.0970.05718.82
5.4.360.1230.04318.78
5.4.350.1030.05718.76
5.4.340.0970.05318.57
5.4.320.0060.03612.51
5.4.310.0090.04212.50
5.4.300.0040.05212.50
5.4.290.0060.04812.50
5.4.280.0050.04312.40
5.4.270.0030.04812.40
5.4.260.0100.05318.77
5.4.250.0070.07018.94
5.4.240.0200.05018.91
5.4.230.0130.06718.86
5.4.220.0170.05318.71
5.4.210.0100.07718.75
5.4.200.0070.05318.95
5.4.190.0170.07018.75
5.4.180.0170.04718.94
5.4.170.0200.04018.91
5.4.160.0200.05718.89
5.4.150.0100.06018.93
5.4.140.0200.05016.39
5.4.130.0170.04716.35
5.4.120.0130.05016.32
5.4.110.0070.06716.54
5.4.100.0100.04716.41
5.4.90.0100.05316.47
5.4.80.0070.05016.54
5.4.70.0100.05316.45
5.4.60.0170.06716.43
5.4.50.0070.05716.29
5.4.40.0200.05016.65
5.4.30.0170.05716.59
5.4.20.0100.06316.37
5.4.10.0130.04716.36
5.4.00.0100.05316.02
5.3.290.0040.05212.80
5.3.280.0130.06714.61
5.3.270.0070.05314.51
5.3.260.0030.05714.77
5.3.250.0130.05014.69
5.3.240.0070.05014.59
5.3.230.0070.07314.57
5.3.220.0100.06714.62
5.3.210.0100.05314.72
5.3.200.0170.07314.64
5.3.190.0000.06014.54
5.3.180.0030.07314.39
5.3.170.0000.08714.53
5.3.160.0130.06014.78
5.3.150.0100.08014.39
5.3.140.0200.06314.55
5.3.130.0230.04014.68
5.3.120.0030.07314.63
5.3.110.0100.07714.54
5.3.100.0270.04314.12
5.3.90.0030.06713.98
5.3.80.0070.05714.09
5.3.70.0100.05014.20
5.3.60.0070.07314.08
5.3.50.0200.04314.12
5.3.40.0130.04313.95
5.3.30.0130.04713.89
5.3.20.0070.07013.68
5.3.10.0100.05713.64
5.3.00.0200.06013.80
5.2.170.0070.05311.21
5.2.160.0100.05311.10
5.2.150.0070.04311.20
5.2.140.0100.06011.12
5.2.130.0030.06011.09
5.2.120.0000.04711.17
5.2.110.0030.04710.92
5.2.100.0100.04011.07
5.2.90.0070.05711.17
5.2.80.0130.05311.17
5.2.70.0100.05310.92
5.2.60.0070.05711.28
5.2.50.0130.04011.01
5.2.40.0070.05010.98
5.2.30.0070.05711.05
5.2.20.0000.04311.13
5.2.10.0100.04310.93
5.2.00.0070.05010.94
5.1.60.0000.0439.83
5.1.50.0030.03710.19
5.1.40.0130.03010.17
5.1.30.0170.02710.31
5.1.20.0100.03710.53
5.1.10.0070.03310.22
5.1.00.0070.03710.13
5.0.50.0030.0338.64
5.0.40.0030.0278.46
5.0.30.0000.0478.27
5.0.20.0000.0408.11
5.0.10.0070.0278.13
5.0.00.0000.0478.16
4.4.90.0070.0237.55
4.4.80.0170.0137.55
4.4.70.0070.0177.55
4.4.60.0030.0207.55
4.4.50.0000.0277.55
4.4.40.0000.0377.55
4.4.30.0030.0277.55
4.4.20.0030.0207.55
4.4.10.0070.0277.55
4.4.00.0070.0407.55
4.3.110.0030.0237.55
4.3.100.0030.0237.55
4.3.90.0030.0277.55
4.3.80.0030.0407.55
4.3.70.0030.0277.55
4.3.60.0070.0237.55
4.3.50.0030.0237.55
4.3.40.0070.0407.55
4.3.30.0070.0277.55
4.3.20.0000.0237.55
4.3.10.0000.0337.55
4.3.00.0030.0237.40

preferences:
36.24 ms | 401 KiB | 5 Q