3v4l.org

run code in 300+ PHP versions simultaneously
<?php $length = 10; $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } print_r(rand(0,$characters));

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)
7.2.00.0060.00819.61
7.1.70.0000.01017.34
7.1.60.0030.02119.82
7.1.50.0030.01017.07
7.1.00.0030.07322.35
7.0.200.0100.00616.68
7.0.140.0070.06721.95
7.0.80.0130.08319.96
7.0.70.0100.06019.92
7.0.60.0130.08019.95
7.0.50.0070.09020.36
7.0.40.0070.08320.10
7.0.30.0100.08320.00
7.0.20.0230.06720.08
7.0.10.0270.07020.08
7.0.00.0100.05020.02
5.6.280.0070.06721.12
5.6.230.0000.09320.65
5.6.220.0100.08020.54
5.6.210.0100.08020.77
5.6.200.0070.08320.96
5.6.190.0070.05721.13
5.6.180.0070.06321.13
5.6.170.0100.08021.07
5.6.160.0070.07721.13
5.6.150.0170.07021.08
5.6.140.0130.06321.04
5.6.130.0100.08020.95
5.6.120.0070.09021.04
5.6.110.0070.08721.09
5.6.100.0070.05021.09
5.6.90.0200.05720.96
5.6.80.0070.07720.52
5.6.70.0170.06020.31
5.6.60.0100.05020.44
5.6.50.0100.08320.32
5.6.40.0100.07720.37
5.6.30.0130.07320.31
5.6.20.0130.06320.39
5.6.10.0170.07020.36
5.6.00.0130.07720.47
5.5.370.0070.08720.37
5.5.360.0030.07720.41
5.5.350.0100.07720.43
5.5.340.0130.04720.78
5.5.330.0330.07020.80
5.5.320.0070.05020.73
5.5.310.0100.08020.82
5.5.300.0030.06320.72
5.5.290.0170.07720.85
5.5.280.0130.07720.73
5.5.270.0030.06020.84
5.5.260.0170.07720.90
5.5.250.0070.08720.64
5.5.240.0100.05020.02
5.5.230.0100.07320.26
5.5.220.0070.06320.18
5.5.210.0100.05720.13
5.5.200.0030.07720.14
5.5.190.0000.08720.10
5.5.180.0030.05720.10
5.5.160.0200.07020.25
5.5.150.0070.07720.14
5.5.140.0100.06020.11
5.5.130.0270.06020.24
5.5.120.0100.05320.16
5.5.110.0100.07320.13
5.5.100.0170.05320.11
5.5.90.0070.08020.10
5.5.80.0130.07719.96
5.5.70.0030.08320.05
5.5.60.0070.04720.15
5.5.50.0030.08020.09
5.5.40.0070.06320.04
5.5.30.0130.05320.07
5.5.20.0000.08320.13
5.5.10.0070.08019.97
5.5.00.0000.08720.01
5.4.450.0070.07719.40
5.4.440.0070.08019.42
5.4.430.0130.07319.38
5.4.420.0030.07719.13
5.4.410.0070.07719.29
5.4.400.0070.05319.16
5.4.390.0070.08319.11
5.4.380.0100.05719.03
5.4.370.0000.07019.16
5.4.360.0100.06318.79
5.4.350.0070.07319.14
5.4.340.0070.08019.03
5.4.320.0100.07018.95
5.4.310.0070.08019.23
5.4.300.0070.08018.94
5.4.290.0070.07019.03
5.4.280.0030.05319.09
5.4.270.0070.04319.08
5.4.260.0030.05318.94
5.4.250.0100.07319.14
5.4.240.0100.08019.11
5.4.230.0100.07019.02
5.4.220.0100.07319.03
5.4.210.0030.08018.90
5.4.200.0070.07718.89
5.4.190.0070.07719.06
5.4.180.0200.06019.05
5.4.170.0030.07719.06
5.4.160.0070.07319.07
5.4.150.0030.05718.76
5.4.140.0030.04316.37
5.4.130.0100.07016.42
5.4.120.0070.07316.32
5.4.110.0230.06316.21
5.4.100.0200.05716.16
5.4.90.0100.07316.22
5.4.80.0000.05316.32
5.4.70.0030.05316.32
5.4.60.0000.08016.41
5.4.50.0070.07016.21
5.4.40.0070.07316.36
5.4.30.0030.07016.41
5.4.20.0030.05716.34
5.4.10.0100.07716.23
5.4.00.0070.06715.51
5.3.290.0070.04014.66
5.3.280.0070.05014.59
5.3.270.0070.05314.56
5.3.260.0070.07314.58
5.3.250.0130.05714.45
5.3.240.0100.06014.46
5.3.230.0130.07714.46
5.3.220.0070.07714.57
5.3.210.0100.07314.55
5.3.200.0070.08014.43
5.3.190.0000.08014.38
5.3.180.0030.05314.52
5.3.170.0100.07014.47
5.3.160.0130.04714.52
5.3.150.0000.08714.56
5.3.140.0030.08014.41
5.3.130.0000.08314.50
5.3.120.0130.06714.52
5.3.110.0000.06014.48
5.3.100.0030.08013.97
5.3.90.0030.05013.96
5.3.80.0030.07714.00
5.3.70.0070.06014.01
5.3.60.0030.07313.95
5.3.50.0100.05013.80
5.3.40.0130.05713.93
5.3.30.0100.06713.90
5.3.20.0030.08013.68
5.3.10.0100.06313.51
5.3.00.0070.04013.54
5.2.170.0170.05311.64
5.2.160.0100.05311.64
5.2.150.0000.06311.64
5.2.140.0100.04711.64
5.2.130.0030.04711.64
5.2.120.0070.06711.64
5.2.110.0070.06011.64
5.2.100.0000.06311.64
5.2.90.0000.05311.64
5.2.80.0030.06011.64
5.2.70.0100.05711.64
5.2.60.0100.04311.64
5.2.50.0000.04311.64
5.2.40.0000.04311.64
5.2.30.0100.05311.64
5.2.20.0070.05311.64
5.2.10.0200.04711.64
5.2.00.0070.04711.64
5.1.60.0070.05311.64
5.1.50.0070.04311.64
5.1.40.0000.05711.64
5.1.30.0030.05711.64
5.1.20.0000.05311.64
5.1.10.0070.05011.64
5.1.00.0000.06011.64
5.0.50.0100.04011.64
5.0.40.0130.03711.64
5.0.30.0000.05711.64
5.0.20.0030.04011.64
5.0.10.0130.03711.64
5.0.00.0030.06711.64
4.4.90.0030.03311.64
4.4.80.0070.03011.64
4.4.70.0100.02711.64
4.4.60.0030.02711.64
4.4.50.0000.03711.64
4.4.40.0030.05311.64
4.4.30.0100.03011.64
4.4.20.0070.02711.64
4.4.10.0030.03711.64
4.4.00.0030.04311.64
4.3.110.0100.03011.64
4.3.100.0000.03711.64
4.3.90.0030.02711.64
4.3.80.0000.04311.64
4.3.70.0030.01711.64
4.3.60.0000.03711.64
4.3.50.0000.03311.64
4.3.40.0000.05311.64
4.3.30.0000.02711.64
4.3.20.0000.04011.64
4.3.10.0100.03011.64
4.3.00.0030.03311.64

preferences:
37.46 ms | 400 KiB | 5 Q