3v4l.org

run code in 300+ PHP versions simultaneously
<?php function multiID($n=32) { for ($x=$s=0,$r=null; $x<$n; $x++) { $c = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz01234567890'; if (($x<$n) && ($x > 0) && ($s < 2)) { $c .= "\002D_"; } $g = substr($c, mt_rand(0, strlen($c) - 1), 1); $r .= $g; if (($g == '_') || ($g == "\002D")) { $s++; } } return $r; } echo multiID(6);

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)
7.3.120.0100.00614.81
7.3.110.0140.00015.13
7.3.100.0030.01414.70
7.3.90.0060.01014.71
7.3.80.0040.01114.99
7.3.70.0060.00914.96
7.3.60.0130.00314.98
7.3.50.0060.00814.89
7.3.40.0070.01014.76
7.3.30.0070.00714.98
7.3.20.0110.00616.52
7.3.10.0100.00616.74
7.3.00.0080.00816.77
7.2.240.0040.01114.91
7.2.230.0080.00815.20
7.2.220.0110.00415.06
7.2.210.0100.00715.31
7.2.200.0110.00715.11
7.2.190.0030.01214.79
7.2.180.0060.00914.93
7.2.170.0030.01014.87
7.2.160.0000.01115.04
7.2.150.0030.01317.01
7.2.140.0100.00717.06
7.2.130.0070.01017.03
7.2.120.0040.01516.74
7.2.110.0030.01016.87
7.2.100.0070.00716.82
7.2.90.0000.01816.93
7.2.80.0090.00616.98
7.2.70.0100.00716.98
7.2.60.0080.00816.79
7.2.50.0090.00917.03
7.2.40.0030.00916.83
7.2.30.0070.00716.97
7.2.20.0040.00716.90
7.2.10.0000.01616.95
7.2.00.0100.00718.20
7.1.330.0100.00415.66
7.1.320.0030.01215.76
7.1.310.0060.00615.96
7.1.300.0070.01015.91
7.1.290.0060.01016.01
7.1.280.0110.00715.64
7.1.270.0140.00315.84
7.1.260.0080.00815.84
7.1.250.0070.00715.91
7.1.70.0060.01517.25
7.1.60.0060.01919.82
7.1.50.0140.01017.07
7.1.00.0070.03022.31
7.0.200.0000.00716.86
7.0.140.0070.07022.15
7.0.60.0130.08019.94
7.0.50.0100.06717.85
7.0.40.0000.05320.35
7.0.30.0300.07320.12
7.0.20.0230.06720.15
7.0.10.0330.03720.10
7.0.00.0100.08320.27
5.6.280.0070.07021.11
5.6.210.0100.07720.70
5.6.200.0070.06018.19
5.6.190.0100.04320.45
5.6.180.3270.03720.47
5.6.170.0170.05020.55
5.6.160.0030.08020.46
5.6.150.0100.05718.19
5.6.140.0130.07718.27
5.6.130.0170.05018.15
5.6.120.0100.04320.98
5.6.110.0030.09021.01
5.6.100.0000.06020.89
5.6.90.0170.07720.96
5.6.80.0100.06020.41
5.6.70.0230.07020.40
5.5.350.0200.07020.41
5.5.340.0070.05018.09
5.5.330.0030.08320.40
5.5.320.0100.05320.35
5.5.310.0430.07320.32
5.5.300.0030.08317.98
5.5.290.0100.08018.08
5.5.280.0070.08320.66
5.5.270.0000.08320.76
5.5.260.0030.08720.84
5.5.250.0070.06720.71
5.5.240.0130.08320.19
5.4.450.0130.06019.45
5.4.440.0530.06719.58
5.4.430.0800.06719.38
5.4.420.0830.06019.32
5.4.410.0900.05019.22
5.4.400.0470.06718.63
5.4.390.0430.04718.75
5.4.380.0170.05718.50
5.4.370.0100.05718.61
5.4.360.0200.04718.48
5.4.350.0080.03312.02
5.4.340.0080.03412.02
5.4.320.0100.03112.50
5.4.310.0050.03812.50
5.4.300.0070.03512.51
5.4.290.0080.03612.50
5.4.280.0070.03512.39
5.4.270.0100.03812.40
5.4.260.0090.03412.40
5.4.250.0130.05018.91
5.4.240.0030.05718.89
5.4.230.0070.05718.95
5.4.220.0070.07718.68
5.4.210.0170.04718.73
5.4.200.0030.05718.88
5.4.190.0070.05318.94
5.4.180.0200.04318.73
5.4.170.0130.05018.58
5.4.160.0070.05318.92
5.4.150.0130.05318.87
5.4.140.0000.07716.39
5.4.130.0100.04716.54
5.4.120.0070.04716.54
5.4.110.0100.05016.27
5.4.100.0170.04016.54
5.4.90.0070.05016.57
5.4.80.0070.04716.36
5.4.70.0000.06016.29
5.4.60.0070.05016.38
5.4.50.0130.04716.38
5.4.40.0100.04716.45
5.4.30.0170.04316.31
5.4.20.0100.08016.39
5.4.10.0130.04716.44
5.4.00.0100.04715.78
5.3.290.0050.04012.80
5.3.280.0130.05714.59
5.3.270.0030.05714.59
5.3.260.0170.04714.68
5.3.250.0100.05314.68
5.3.240.0070.05314.61
5.3.230.0200.07714.67
5.3.220.0100.07314.63
5.3.210.0130.08314.54
5.3.200.0130.04314.65
5.3.190.0170.04714.79
5.3.180.0070.05314.55
5.3.170.0100.05314.74
5.3.160.0100.05714.64
5.3.150.0070.05014.46
5.3.140.0100.06714.64
5.3.130.0100.06014.68
5.3.120.0070.05314.76
5.3.110.0200.04014.77
5.3.100.0230.03714.13
5.3.90.0030.05713.84
5.3.80.0070.05014.00
5.3.70.0100.05014.08
5.3.60.0130.04713.97
5.3.50.0100.05314.02
5.3.40.0130.04314.03
5.3.30.0030.05013.99
5.3.20.0000.05713.77
5.3.10.0070.04713.63
5.3.00.0030.07713.72
5.2.170.0100.03711.22
5.2.160.0100.03711.21
5.2.150.0100.04311.21
5.2.140.0130.03011.21
5.2.130.0100.03711.09
5.2.120.0100.03311.07
5.2.110.0030.04311.18
5.2.100.0070.03711.17
5.2.90.0070.03711.07
5.2.80.0100.04311.07
5.2.70.0130.05311.25
5.2.60.0100.03711.03
5.2.50.0000.04711.24
5.2.40.0170.04011.09
5.2.30.0070.04011.13
5.2.20.0030.04711.03
5.2.10.0170.04010.94
5.2.00.0030.04010.69
5.1.60.0030.03310.09
5.1.50.0000.05010.04
5.1.40.0130.0279.89
5.1.30.0200.04710.29
5.1.20.0130.04710.42
5.1.10.0070.03310.16
5.1.00.0070.04010.11
5.0.50.0000.0308.79
5.0.40.0030.0278.52
5.0.30.0030.0408.19
5.0.20.0030.0278.29
5.0.10.0030.0308.33
5.0.00.0100.0378.01
4.4.90.0130.0206.95
4.4.80.0030.0206.95
4.4.70.0000.0236.95
4.4.60.0070.0176.95
4.4.50.0000.0236.95
4.4.40.0100.0376.95
4.4.30.0070.0176.95
4.4.20.0070.0176.95
4.4.10.0070.0276.95
4.4.00.0000.0436.95
4.3.110.0070.0176.95
4.3.100.0000.0276.95
4.3.90.0000.0236.95
4.3.80.0000.0336.95
4.3.70.0000.0206.95
4.3.60.0030.0176.95
4.3.50.0070.0176.95
4.3.40.0000.0376.95
4.3.30.0070.0206.95
4.3.20.0070.0206.95
4.3.10.0030.0206.95
4.3.00.0100.0276.34

preferences:
36.22 ms | 401 KiB | 5 Q