3v4l.org

run code in 300+ PHP versions simultaneously
<?php function RandomString() { $characters = ’0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ’; $randstring = ''; for ($i = 0; $i < 10; $i++) { $randstring = $characters[rand(0, strlen($characters))]; } return $randstring; } echo RandomString();

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)
7.2.00.0060.01019.53
7.1.70.0030.00917.28
7.1.60.0070.00717.14
7.1.50.0230.00716.91
7.1.00.0070.07322.30
7.0.200.0030.01316.75
7.0.140.0030.07022.02
7.0.60.0230.04320.00
7.0.50.0070.04017.75
7.0.40.0170.07020.21
7.0.30.0300.04020.13
7.0.20.0270.08020.16
7.0.10.0100.03720.10
7.0.00.0100.07320.24
5.6.280.0100.06720.90
5.6.210.0170.06720.61
5.6.200.0030.04318.18
5.6.190.0070.05320.68
5.6.180.0100.05020.52
5.6.170.0330.06720.54
5.6.160.0100.08020.57
5.6.150.0070.08018.18
5.6.140.0030.06718.17
5.6.130.0070.04318.19
5.6.120.0200.07720.90
5.6.110.0070.08321.14
5.6.100.0070.08720.89
5.6.90.0100.08021.11
5.6.80.0130.03720.42
5.5.350.0300.07020.44
5.5.340.0030.06717.95
5.5.330.0070.08020.35
5.5.320.0630.06020.43
5.5.310.0270.05020.34
5.5.300.0070.05017.98
5.5.290.0100.03718.01
5.5.280.0100.05320.98
5.5.270.0100.08020.97
5.5.260.0030.06020.89
5.5.250.0100.06720.68
5.5.240.0170.09020.27
5.4.450.0730.05319.25
5.4.440.0030.04719.38
5.4.430.1230.05019.25
5.4.420.4470.03319.48
5.4.410.3500.03719.32
5.4.400.3700.03719.06
5.4.390.3500.04319.23
5.4.380.3430.03719.10
5.4.370.3970.03719.04
5.4.360.3500.02719.19
5.4.350.3630.04319.23
5.4.340.4100.04719.14
5.4.320.3730.03719.18
5.4.310.4570.04018.93
5.4.300.4570.03718.93
5.4.290.4500.04319.01
5.4.280.4270.03019.04
5.4.270.3870.04319.14
5.4.260.4270.04319.24
5.4.250.4000.03319.13
5.4.240.4200.05019.18
5.4.230.3900.03719.21
5.4.220.4030.03719.06
5.4.210.3630.04019.14
5.4.200.4370.04019.11
5.4.190.3730.03019.17
5.4.180.3630.03719.18
5.4.170.3800.04018.92
5.4.160.3700.03719.11
5.4.150.3700.04019.17
5.4.140.3930.03016.51
5.4.130.3630.03016.39
5.4.120.3600.03716.49
5.4.110.3870.04316.32
5.4.100.3870.04016.48
5.4.90.3930.03016.56
5.4.80.4100.03016.46
5.4.70.3930.03016.46
5.4.60.3970.03716.46
5.4.50.3770.03316.45
5.4.40.4400.04316.47
5.4.30.3770.04316.52
5.4.20.3870.04016.43
5.4.10.3900.04016.60
5.4.00.3570.03715.89
5.3.290.4300.03714.70
5.3.280.3570.04014.58
5.3.270.3800.04014.76
5.3.260.4670.03714.62
5.3.250.4330.03314.77
5.3.240.4300.04014.60
5.3.230.3730.03714.67
5.3.220.3700.03714.71
5.3.210.4000.03314.50
5.3.200.3770.04014.59
5.3.190.4000.03314.59
5.3.180.3330.04014.45
5.3.170.3870.03714.59
5.3.160.3770.03314.59
5.3.150.3900.03714.59
5.3.140.3930.03314.55
5.3.130.3770.04014.43
5.3.120.3170.03714.59
5.3.110.3870.03314.55
5.3.100.3730.04314.18
5.3.90.3700.04314.07
5.3.80.3970.04014.16
5.3.70.3900.03714.09
5.3.60.4070.04013.97
5.3.50.3470.03313.94
5.3.40.4000.03713.87
5.3.30.0170.06313.87
5.3.20.0070.05013.70
5.3.10.4100.02313.65
5.3.00.4000.03313.80
5.2.170.3000.03711.11
5.2.160.3500.03311.14
5.2.150.0530.02711.20
5.2.140.0070.06311.10
5.2.130.3530.03311.14
5.2.120.3630.02311.10
5.2.110.3200.02711.13
5.2.100.3300.03011.10
5.2.90.3730.02711.17
5.2.80.3300.03311.16
5.2.70.3030.03011.04
5.2.60.3370.03311.01
5.2.50.3430.02310.98
5.2.40.2670.02710.99
5.2.30.2500.03311.02
5.2.20.2200.02711.00
5.2.10.2430.03010.87
5.2.00.2530.03010.68
5.1.60.2130.02710.13
5.1.50.2400.0309.90
5.1.40.2400.0309.99
5.1.30.2470.03010.49
5.1.20.0100.02310.51
5.1.10.0030.02310.05
5.1.00.0030.02310.02
5.0.50.0070.0278.54
5.0.40.0600.0208.43
5.0.30.1500.0308.36
5.0.20.1370.0178.27
5.0.10.1200.0208.19
5.0.00.0930.0308.13
4.4.90.1430.0205.84
4.4.80.1500.0205.80
4.4.70.1230.0175.86
4.4.60.1270.0135.88
4.4.50.1230.0175.77
4.4.40.1230.0235.82
4.4.30.1270.0135.79
4.4.20.0030.0135.88
4.4.10.0030.0135.91
4.4.00.0000.0275.87
4.3.110.1270.0135.76
4.3.100.1430.0175.77
4.3.90.1200.0175.76
4.3.80.1200.0235.76
4.3.70.1200.0175.76
4.3.60.1200.0175.76
4.3.50.1230.0135.79
4.3.40.1600.0235.76
4.3.30.0770.0135.76
4.3.20.0700.0135.76
4.3.10.0800.0235.76
4.3.00.0670.0205.76

preferences:
34.7 ms | 400 KiB | 5 Q