3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i=0;$i<100;$i++) echo substr(uniqid(), 0, 8);

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)
7.2.00.0030.01219.11
7.1.70.0040.00416.86
7.1.60.0130.01019.70
7.1.50.0020.01217.04
7.1.00.0070.07322.44
7.0.200.0060.00316.82
7.0.140.0000.07722.00
7.0.60.0100.08319.95
7.0.50.0030.07717.91
7.0.40.0070.06720.24
7.0.30.0300.07320.16
7.0.20.0200.03720.00
7.0.10.0070.05720.20
7.0.00.0130.03720.13
5.6.280.0070.07320.85
5.6.210.0070.08020.64
5.6.200.0030.05318.16
5.6.190.0130.04020.35
5.6.180.0370.08720.45
5.6.170.0330.06720.61
5.6.160.0000.04720.46
5.6.150.0070.04018.12
5.6.140.0230.06318.12
5.6.130.0030.06018.27
5.6.120.0070.07321.13
5.6.110.0200.07021.11
5.6.100.0100.07021.00
5.6.90.0100.05320.96
5.6.80.0030.05720.40
5.5.350.0230.08020.46
5.5.340.0100.05718.02
5.5.330.0000.04720.47
5.5.320.0200.04320.21
5.5.310.0230.04320.28
5.5.300.0100.05317.95
5.5.290.0100.04717.95
5.5.280.0130.07320.64
5.5.270.0200.04020.74
5.5.260.0030.06720.83
5.5.250.0070.05320.68
5.5.240.0130.06020.15
5.4.450.0300.03319.41
5.4.440.0170.06319.42
5.4.430.0170.03719.45
5.4.420.0100.04719.41
5.4.410.0230.05019.29
5.4.400.0130.04019.13
5.4.390.0170.03719.25
5.4.380.0230.03718.92
5.4.370.0200.03319.25
5.4.360.0130.04019.24
5.4.350.0200.03719.14
5.4.340.0200.05718.93
5.4.320.0170.03719.22
5.4.310.0070.04719.13
5.4.300.0230.03718.80
5.4.290.0200.03319.21
5.4.280.0230.03719.08
5.4.270.0170.05019.24
5.4.260.0230.07019.21
5.4.250.0200.04018.91
5.4.240.0200.03318.88
5.4.230.0170.04718.77
5.4.220.0330.03018.77
5.4.210.0170.03719.23
5.4.200.0100.04318.93
5.4.190.0000.04019.23
5.4.180.0170.03719.05
5.4.170.0270.04018.91
5.4.160.0300.05718.75
5.4.150.0100.04319.04
5.4.140.0270.06716.26
5.4.130.0400.04016.39
5.4.120.0400.05716.43
5.4.110.0230.03016.47
5.4.100.0230.03316.39
5.4.90.0270.03316.39
5.4.80.0200.05016.18
5.4.70.0200.03016.45
5.4.60.0130.04716.44
5.4.50.0170.04316.27
5.4.40.0130.03716.28
5.4.30.0300.03316.45
5.4.20.0100.04316.36
5.4.10.0200.03016.18
5.4.00.0100.04315.72
5.3.290.0230.03714.75
5.3.280.0170.04314.59
5.3.270.0200.04014.47
5.3.260.0170.06014.45
5.3.250.0170.03714.50
5.3.240.0200.03314.55
5.3.230.0370.07014.58
5.3.220.0130.04014.50
5.3.210.0170.03714.40
5.3.200.0300.03314.41
5.3.190.0200.03314.46
5.3.180.0200.03314.51
5.3.170.0200.07314.59
5.3.160.0200.03314.43
5.3.150.0200.06314.39
5.3.140.0100.04714.40
5.3.130.0130.04314.50
5.3.120.0100.04314.59
5.3.110.0100.04314.39
5.3.100.0130.05013.98
5.3.90.0170.03713.85
5.3.80.0130.03713.86
5.3.70.0170.03313.96
5.3.60.0200.04014.02
5.3.50.0170.03313.71
5.3.40.0300.03314.00
5.3.30.0200.03313.78
5.3.20.0170.03313.64
5.3.10.0230.03713.60
5.3.00.0170.03013.73
5.2.170.0200.03311.03
5.2.160.0100.03311.16
5.2.150.0070.03711.19
5.2.140.0170.02711.19
5.2.130.0170.05311.15
5.2.120.0170.02310.99
5.2.110.0130.02710.99
5.2.100.0070.02710.99
5.2.90.0070.02310.99
5.2.80.0030.02710.99
5.2.70.1130.02711.00
5.2.60.1270.03310.99
5.2.50.1130.03010.99
5.2.40.0400.03010.99
5.2.30.0970.03010.99
5.2.20.0970.03010.99
5.2.10.1030.02310.99
5.2.00.0970.02710.99
5.1.60.1030.02310.99
5.1.50.1070.02310.99
5.1.40.1070.02710.99
5.1.30.1000.02010.99
5.1.20.1100.03010.99
5.1.10.1070.02710.99
5.1.00.1030.03010.99
5.0.50.0400.02310.99
5.0.40.0100.02310.99
5.0.30.0030.03010.99
5.0.20.0000.02010.99
5.0.10.0030.01710.99
5.0.00.0000.03310.99
4.4.90.0000.02010.99
4.4.80.0000.01710.99
4.4.70.0070.02010.99
4.4.60.0100.03310.99
4.4.50.0370.01710.99
4.4.40.0570.02310.99
4.4.30.0530.01710.99
4.4.20.0530.01710.99
4.4.10.0430.01310.99
4.4.00.0530.02710.99
4.3.110.0530.01710.99
4.3.100.0430.01710.99
4.3.90.0600.01010.99
4.3.80.0330.02010.99
4.3.70.0470.01310.99
4.3.60.0570.01310.99
4.3.50.0500.01310.99
4.3.40.0500.02710.99
4.3.30.0200.01710.99
4.3.20.0200.01710.99
4.3.10.0230.01310.99
4.3.00.0000.01710.99

preferences:
38.05 ms | 401 KiB | 5 Q