3v4l.org

run code in 300+ PHP versions simultaneously
<?php function quickRandom($length = 16) { $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; return substr(str_shuffle(str_repeat($pool, 5)), 0, $length); } echo strlen(quickRandom(311));

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)
7.4.00.0090.00914.82
7.3.120.0080.00814.65
7.3.110.0030.01314.93
7.3.100.0060.00914.70
7.3.90.0080.00314.71
7.3.80.0030.01414.73
7.3.70.0040.00914.74
7.3.60.0120.00314.66
7.3.50.0060.00614.84
7.3.40.0000.00914.82
7.3.30.0120.00614.89
7.3.20.0070.01016.73
7.3.10.0060.01216.59
7.3.00.0070.01116.71
7.2.250.0000.01614.79
7.2.240.0090.00914.55
7.2.230.0090.01214.56
7.2.220.0070.00714.62
7.2.210.0040.01414.86
7.2.200.0000.01315.13
7.2.190.0030.00614.84
7.2.180.0140.00315.00
7.2.170.0070.00315.06
7.2.00.0080.00419.25
7.1.330.0070.00716.02
7.1.320.0100.01015.72
7.1.310.0090.00615.91
7.1.300.0080.00615.73
7.1.290.0090.00615.61
7.1.280.0030.00615.76
7.1.270.0070.00715.70
7.1.260.0100.00315.95
7.1.100.0030.00918.02
7.1.70.0040.01117.08
7.1.60.0070.01719.82
7.1.50.0040.01416.96
7.1.00.0100.07022.41
7.0.200.0060.00316.76
7.0.140.0000.07722.04
7.0.70.0100.07321.68
7.0.60.0070.07721.70
7.0.50.0000.07721.96
7.0.40.0030.07320.10
7.0.30.0070.07720.12
7.0.20.0130.07320.18
7.0.10.0030.08320.06
7.0.00.0070.04020.18
5.6.280.0070.07021.09
5.6.220.0070.05320.44
5.6.210.0030.08020.53
5.6.200.0100.08021.04
5.6.190.0070.04721.08
5.6.180.0070.07721.05
5.6.170.0130.08021.17
5.6.160.0170.07320.96
5.6.150.0070.08320.95
5.6.140.0030.08721.00
5.6.130.0030.05321.06
5.6.120.0070.08021.05
5.6.110.0100.08021.16
5.6.100.0030.07320.99
5.6.90.0070.07720.91
5.6.80.0000.07320.49
5.6.70.0100.07720.46
5.6.60.0100.06020.36
5.6.50.0070.05020.41
5.6.40.0000.04020.49
5.6.30.0030.03720.27
5.6.20.0030.03720.39
5.6.10.0000.04020.44
5.6.00.0030.03720.34
5.5.360.0070.06320.37
5.5.350.0100.07720.36
5.5.340.0030.05020.84
5.5.330.0030.09020.75
5.5.320.0000.08320.90
5.5.310.0070.08020.83
5.5.300.0030.05020.83
5.5.290.0100.07720.79
5.5.280.0030.04320.89
5.5.270.0000.06320.82
5.5.260.0000.08320.86
5.5.250.0070.07020.53
5.5.240.0000.08020.31
5.5.230.0070.05320.30
5.5.220.0070.06720.20
5.5.210.0030.08020.20
5.5.200.0030.03720.15
5.5.190.0100.03320.28
5.5.180.0000.04020.11
5.5.160.0030.03720.25
5.5.150.0030.03020.18
5.5.140.0070.03320.23
5.5.130.0030.03719.98
5.5.120.0000.04020.16
5.5.110.0000.04020.12
5.5.100.0030.06320.09
5.5.90.0000.04020.10
5.5.80.0000.03720.07
5.5.70.0030.03720.14
5.5.60.0070.03320.05
5.5.50.0000.05020.13
5.5.40.0000.04020.13
5.5.30.0000.03319.93
5.5.20.0000.03320.08
5.5.10.0030.03019.97
5.5.00.0070.02720.13
5.4.450.0000.08719.49
5.4.440.0000.08719.55
5.4.430.0130.06719.52
5.4.420.0030.08319.22
5.4.410.0030.06019.40
5.4.400.0070.07319.03
5.4.390.0030.07319.13
5.4.380.0000.05319.25
5.4.370.0030.06318.87
5.4.360.0030.04718.87
5.4.350.0000.03719.13
5.4.340.0030.03719.09
5.4.320.0000.04019.12
5.4.310.0000.03719.18
5.4.300.0000.03319.20
5.4.290.0000.03719.08
5.4.280.0030.04019.18
5.4.270.0000.03018.90
5.4.260.0030.03019.11
5.4.250.0000.04019.08
5.4.240.0030.03718.89
5.4.230.0070.02719.03
5.4.220.0030.03719.09
5.4.210.0000.03319.02
5.4.200.0000.03319.13
5.4.190.0000.03019.11
5.4.180.0000.03019.10
5.4.170.0000.03018.95
5.4.160.0000.04018.85
5.4.150.0030.03018.85
5.4.140.0000.04016.28
5.4.130.0000.03316.19
5.4.120.0000.03016.39
5.4.110.0000.03016.50
5.4.100.0030.02716.43
5.4.90.0030.02716.43
5.4.80.0030.02716.45
5.4.70.0030.02716.32
5.4.60.0000.03316.43
5.4.50.0030.02716.48
5.4.40.0030.03316.53
5.4.30.0000.03016.38
5.4.20.0030.03716.29
5.4.10.0000.03016.44
5.4.00.0000.03015.80
5.3.290.0070.03314.77
5.3.280.0000.03314.61
5.3.270.0030.04014.70
5.3.260.0000.03014.52
5.3.250.0030.03014.63
5.3.240.0070.02714.57
5.3.230.0000.03014.52
5.3.220.0000.03014.61
5.3.210.0000.03014.50
5.3.200.0030.02714.63
5.3.190.0030.02714.49
5.3.180.0030.02714.56
5.3.170.0070.03014.63
5.3.160.0000.03314.57
5.3.150.0000.03014.56
5.3.140.0000.03014.54
5.3.130.0000.03014.55
5.3.120.0000.04014.59
5.3.110.0000.04014.55
5.3.100.0000.03014.13
5.3.90.0000.04014.10
5.3.80.0000.06014.10
5.3.70.0000.03713.96
5.3.60.0030.02713.99
5.3.50.0000.03714.08
5.3.40.0030.04714.01
5.3.30.0070.02313.85
5.3.20.0000.07313.58
5.3.10.0000.03313.67
5.3.00.0030.07313.58
5.2.170.0000.02311.24
5.2.160.0000.02311.17
5.2.150.0000.02311.25
5.2.140.0000.02711.17
5.2.130.0070.03311.17
5.2.120.0000.02311.19
5.2.110.0030.02311.17
5.2.100.0000.02311.22
5.2.90.0000.03011.17
5.2.80.0000.02311.17
5.2.70.0000.03711.17
5.2.60.0030.04011.17
5.2.50.0000.03711.17
5.2.40.0000.06311.17
5.2.30.0070.06011.17
5.2.20.0000.06011.17
5.2.10.0000.06311.17
5.2.00.0070.05311.17
5.1.60.0000.04011.17
5.1.50.0000.05011.17
5.1.40.0030.05011.17
5.1.30.0030.06011.17
5.1.20.0030.04711.17
5.1.10.0070.04311.17
5.1.00.0070.04711.17
5.0.50.0030.04711.17
5.0.40.0000.04711.17
5.0.30.0070.05711.17
5.0.20.0070.03011.17
5.0.10.0070.04011.17
5.0.00.0070.06311.17
4.4.90.0000.03011.17
4.4.80.0000.01711.17
4.4.70.0030.03011.17
4.4.60.0030.03011.17
4.4.50.0000.03711.17
4.4.40.0000.05711.17
4.4.30.0030.03011.17
4.4.20.0000.03311.17
4.4.10.0000.03711.17
4.4.00.0000.05011.17
4.3.110.0000.03711.17
4.3.100.0000.02311.17
4.3.90.0000.02011.17
4.3.80.0000.05011.17
4.3.70.0000.03711.17
4.3.60.0000.03711.17
4.3.50.0070.03011.17
4.3.40.0000.05311.17
4.3.30.0100.02711.17
4.3.20.0000.03711.17
4.3.10.0030.03711.17
4.3.00.0000.03711.17

preferences:
38.88 ms | 400 KiB | 5 Q