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();

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)
7.2.00.0030.01019.36
7.1.70.0100.00017.09
7.1.60.0130.01319.82
7.1.50.0070.01517.07
7.1.00.0030.08722.38
7.0.200.0200.00316.68
7.0.140.0000.07321.98
7.0.60.0000.04720.05
7.0.50.0070.08317.88
7.0.40.0100.05720.40
7.0.30.0330.07020.30
7.0.20.0270.05020.16
7.0.10.0370.05720.08
7.0.00.0100.05020.07
5.6.280.0070.07020.99
5.6.210.0170.07020.46
5.6.200.0170.07718.22
5.6.190.0070.04020.64
5.6.180.3170.04020.69
5.6.170.0330.07320.40
5.6.160.0200.07720.49
5.6.150.0000.04318.23
5.6.140.0070.04718.23
5.6.130.0030.04718.18
5.6.120.0100.08321.13
5.6.110.0100.06021.09
5.6.100.0170.07721.00
5.6.90.0130.05321.09
5.6.80.0070.06320.36
5.6.70.0230.07320.35
5.5.350.0030.07320.39
5.5.340.0000.09018.05
5.5.330.0000.04720.13
5.5.320.0200.08320.34
5.5.310.0170.04020.37
5.5.300.0100.06717.97
5.5.290.0100.06717.94
5.5.280.0070.04320.98
5.5.270.0100.07320.96
5.5.260.0030.04720.76
5.5.250.0070.06720.61
5.5.240.0170.07020.23
5.4.450.0570.05019.59
5.4.440.0670.04719.55
5.4.430.0100.05319.21
5.4.420.0100.08019.63
5.4.410.0070.06319.32
5.4.400.0770.00018.83
5.4.390.0730.00018.77
5.4.380.0300.05018.80
5.4.370.0170.05018.45
5.4.360.0330.04718.51
5.4.350.0170.05018.84
5.4.340.0270.05718.82
5.4.320.0040.03812.50
5.4.310.0040.04612.50
5.4.300.0090.03912.50
5.4.290.0090.04012.50
5.4.280.0090.03712.40
5.4.270.0070.03712.39
5.4.260.0100.05318.95
5.4.250.0100.06318.77
5.4.240.0130.07018.95
5.4.230.0100.07719.00
5.4.220.0230.06718.76
5.4.210.0100.06318.97
5.4.200.0130.06718.90
5.4.190.0170.06018.95
5.4.180.0130.05318.79
5.4.170.0070.06018.94
5.4.160.0200.04719.00
5.4.150.0230.06318.94
5.4.140.0170.07716.39
5.4.130.0230.05016.55
5.4.120.0130.04316.29
5.4.110.0070.05316.49
5.4.100.0030.07316.43
5.4.90.0100.04316.36
5.4.80.0130.06716.39
5.4.70.0130.04716.55
5.4.60.0100.05016.30
5.4.50.0100.07016.54
5.4.40.0170.06316.67
5.4.30.0070.06316.33
5.4.20.0030.05716.32
5.4.10.0170.06016.29
5.4.00.0070.07015.84
5.3.290.0030.04412.80
5.3.280.0170.04314.56
5.3.270.0100.05714.57
5.3.260.0200.05314.68
5.3.250.0130.05014.69
5.3.240.0200.04314.43
5.3.230.0130.05014.75
5.3.220.0200.05714.55
5.3.210.0130.07714.62
5.3.200.0070.05014.64
5.3.190.0070.05714.46
5.3.180.0200.04314.55
5.3.170.0030.05714.63
5.3.160.0100.08314.56
5.3.150.0100.06314.57
5.3.140.0100.07314.45
5.3.130.0070.05714.51
5.3.120.0030.08714.55
5.3.110.0130.06714.62
5.3.100.0070.06314.19
5.3.90.0030.05313.92
5.3.80.0170.04714.07
5.3.70.0200.05714.11
5.3.60.0100.05014.09
5.3.50.0100.05714.03
5.3.40.0300.05013.95
5.3.30.0070.06713.90
5.3.20.0130.06713.66
5.3.10.0070.05013.64
5.3.00.0170.05013.73
5.2.170.0030.05711.32
5.2.160.0030.04711.21
5.2.150.0070.05711.30
5.2.140.0070.04310.98
5.2.130.0170.04311.09
5.2.120.0130.03711.09
5.2.110.0030.06011.08
5.2.100.0030.06011.26
5.2.90.0100.04011.16
5.2.80.0070.05711.18
5.2.70.0100.04710.92
5.2.60.0130.03711.04
5.2.50.0100.04311.03
5.2.40.0070.04711.00
5.2.30.0100.04011.05
5.2.20.0070.05010.91
5.2.10.0100.04311.07
5.2.00.0030.04710.80
5.1.60.0130.0439.91
5.1.50.0100.0339.96
5.1.40.0100.04710.04
5.1.30.0070.05310.31
5.1.20.0100.03710.43
5.1.10.0070.04310.07
5.1.00.0030.05010.11
5.0.50.0000.0478.60
5.0.40.0000.0308.36
5.0.30.0000.0638.27
5.0.20.0030.0408.03
5.0.10.0070.0308.26
5.0.00.0070.0508.21
4.4.90.0030.0207.55
4.4.80.0000.0237.55
4.4.70.0000.0307.55
4.4.60.0030.0307.55
4.4.50.0030.0237.55
4.4.40.0100.0307.55
4.4.30.0070.0237.55
4.4.20.0030.0237.55
4.4.10.0030.0337.55
4.4.00.0070.0307.55
4.3.110.0070.0307.55
4.3.100.0030.0277.55
4.3.90.0000.0337.55
4.3.80.0100.0377.55
4.3.70.0030.0277.55
4.3.60.0030.0207.55
4.3.50.0000.0277.55
4.3.40.0000.0337.55
4.3.30.0000.0237.55
4.3.20.0000.0307.55
4.3.10.0000.0237.55
4.3.00.0070.0237.58

preferences:
35.4 ms | 400 KiB | 5 Q