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); } $i = 10000; while($i--) { 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)
7.3.10.0070.06616.52
7.3.00.0070.06316.72
7.2.130.0030.07416.77
7.2.120.0000.09716.75
7.2.110.0100.09716.78
7.2.100.0100.08716.57
7.2.90.0100.07416.89
7.2.80.0090.07817.02
7.2.70.0130.09416.91
7.2.60.0080.08716.73
7.2.50.0070.08216.54
7.2.40.0100.09316.60
7.2.30.0030.10116.58
7.2.20.0030.08716.89
7.2.10.0070.07516.82
7.2.00.0050.07617.92
7.1.250.0070.11215.42
7.1.100.0070.12217.83
7.1.70.0070.09717.16
7.1.60.0030.12419.43
7.1.50.0030.12116.84
7.1.00.0030.17722.36
7.0.200.0100.02916.74
7.0.140.0000.12322.08
7.0.100.0170.10720.03
7.0.90.0100.13319.99
7.0.80.0070.13720.02
7.0.70.0270.10319.98
7.0.60.0100.10319.96
7.0.50.0170.12020.38
7.0.40.0100.12020.09
7.0.30.0000.07719.92
7.0.20.0100.09720.11
7.0.10.0100.11020.18
7.0.00.0130.11320.04
5.6.280.0000.12320.81
5.6.250.0070.12320.50
5.6.240.0200.11720.69
5.6.230.0030.12020.60
5.6.220.0100.12320.63
5.6.210.0200.11720.61
5.6.200.0100.10321.01
5.6.190.0170.08021.02
5.6.180.0030.13021.05
5.6.170.0130.07321.11
5.6.160.0030.09020.95
5.6.150.0070.08320.95
5.6.140.0030.08321.09
5.6.130.0070.12321.00
5.6.120.0230.11721.03
5.6.110.0030.13320.95
5.6.100.0030.11320.93
5.6.90.0100.12721.12
5.6.80.0130.12020.47
5.6.70.0170.12020.50
5.6.60.0070.13320.42
5.6.50.0070.11320.50
5.6.40.0070.07720.38
5.6.30.0030.07320.44
5.6.20.0030.14020.43
5.6.10.0030.08020.46
5.6.00.0030.07720.36
5.5.380.0130.11720.48
5.5.370.0030.13720.46
5.5.360.0070.12020.34
5.5.350.0070.12320.46
5.5.340.0070.08320.89
5.5.330.0070.12720.80
5.5.320.0100.08320.90
5.5.310.0070.08320.83
5.5.300.0130.12720.87
5.5.290.0070.13020.88
5.5.280.0070.11320.73
5.5.270.0030.12320.88
5.5.260.0070.13320.88
5.5.250.0100.13720.71
5.5.240.0030.11020.22
5.5.230.0070.12020.13
5.5.220.0100.10020.21
5.5.210.0030.12320.11
5.5.200.0130.12720.12
5.5.190.0100.07320.25
5.5.180.0030.10720.18
5.5.160.0100.11720.18
5.5.150.0100.06320.25
5.5.140.0100.10320.11
5.5.130.0070.12020.11
5.5.120.0070.13320.08
5.5.110.0130.12720.13
5.5.100.0130.06320.07
5.5.90.0000.07720.06
5.5.80.0130.06020.07
5.5.70.0030.07320.08
5.5.60.0130.06020.07
5.5.50.0030.09320.10
5.5.40.0100.12320.14
5.5.30.0170.11320.08
5.5.20.0070.08320.14
5.5.10.0130.08320.04
5.5.00.0000.07719.99
5.4.450.0100.11319.46
5.4.440.0170.12719.36
5.4.430.0070.13719.29
5.4.420.0100.12019.23
5.4.410.0030.11019.33
5.4.400.0130.11018.88
5.4.390.0070.08018.90
5.4.380.0170.12319.12
5.4.370.0100.12019.25
5.4.360.0070.08318.90
5.4.350.0070.08018.85
5.4.340.0070.12019.12
5.4.320.0070.11319.16
5.4.310.0030.11319.12
5.4.300.0070.12718.87
5.4.290.0100.10018.94
5.4.280.0130.12019.03
5.4.270.0100.12718.86
5.4.260.0030.07319.16
5.4.250.0000.07319.04
5.4.240.0000.07318.84
5.4.230.0030.08019.04
5.4.220.0070.07019.04
5.4.210.0000.06019.20
5.4.200.0030.07018.87
5.4.190.0100.09319.04
5.4.180.0030.08719.02
5.4.170.0100.07018.93
5.4.160.0130.05319.10
5.4.150.0070.08019.02
5.4.140.0000.07316.45
5.4.130.0070.06316.24
5.4.120.0070.07316.46
5.4.110.0000.07716.39
5.4.100.0100.05716.34
5.4.90.0130.05716.51
5.4.80.0000.08716.41
5.4.70.0130.06016.38
5.4.60.0030.06316.37
5.4.50.0100.04716.52
5.4.40.0030.06716.35
5.4.30.0000.05716.44
5.4.20.0000.06316.43
5.4.10.0070.06716.36
5.4.00.0100.06715.90
5.3.290.0030.13714.66
5.3.280.0000.07314.59
5.3.270.0000.10014.57
5.3.260.0030.07714.53
5.3.250.0030.07714.53
5.3.240.0070.06714.70
5.3.230.0100.06714.66
5.3.220.0000.08014.66
5.3.210.0070.06714.66
5.3.200.0070.06714.63
5.3.190.0030.07014.54
5.3.180.0000.07714.48
5.3.170.0170.06014.63
5.3.160.0030.07014.49
5.3.150.0000.07314.52
5.3.140.0070.06714.58
5.3.130.0000.08014.59
5.3.120.0000.07714.48
5.3.110.0030.07014.61
5.3.100.0000.07314.05
5.3.90.0070.06014.04
5.3.80.0000.07313.94
5.3.70.0030.07013.96
5.3.60.0100.07013.92
5.3.50.0030.07713.96
5.3.40.0000.10014.01
5.3.30.0030.06713.85
5.3.20.0030.08313.82
5.3.10.0030.07013.67
5.3.00.0030.06313.56
5.2.170.0070.06012.04
5.2.160.0030.08712.04
5.2.150.0030.07012.04
5.2.140.0100.10312.04
5.2.130.0030.10712.04
5.2.120.0030.10712.04
5.2.110.0000.11312.04
5.2.100.0030.06012.04
5.2.90.0070.11312.04
5.2.80.0000.06312.04
5.2.70.0000.06012.04
5.2.60.0100.10012.04
5.2.50.0070.07312.04
5.2.40.0170.10012.04
5.2.30.0030.12312.04
5.2.20.0070.11012.04
5.2.10.0130.08012.04
5.2.00.0070.10712.04
5.1.60.0070.10312.04
5.1.50.0000.10712.04
5.1.40.0030.10712.04
5.1.30.0030.08012.04
5.1.20.0030.11312.04
5.1.10.0070.10712.04
5.1.00.0030.06312.04
5.0.50.0030.11012.04
5.0.40.0000.07012.04
5.0.30.0070.11312.04
5.0.20.0030.09312.04
5.0.10.0000.08312.04
5.0.00.0000.11312.04
4.4.90.0070.10312.04
4.4.80.0100.07712.04
4.4.70.0030.09712.04
4.4.60.0000.09012.04
4.4.50.0030.07312.04
4.4.40.0030.09312.04
4.4.30.0030.09312.04
4.4.20.0030.06312.04
4.4.10.0030.06312.04
4.4.00.0000.07312.04
4.3.110.0070.09312.04
4.3.100.0030.10712.04
4.3.90.0030.09012.04
4.3.80.0070.11312.04
4.3.70.0030.09312.04
4.3.60.0030.08012.04
4.3.50.0000.10012.04
4.3.40.0100.13012.04
4.3.30.0000.05712.04
4.3.20.0000.11712.04
4.3.10.0000.09012.04
4.3.00.0070.10012.04

preferences:
38.7 ms | 401 KiB | 5 Q