3v4l.org

run code in 300+ PHP versions simultaneously
<?php function generateRandomString($length = 10) { $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; $randomString = ''; for ($i = 0; $i < $length; $i++) { $randomString .= $characters[rand(0, strlen($characters) - 1)]; } return $randomString; } for($i = 0; $i < 2000; $i++): echo generateRandomString(8); endfor;

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)
7.4.00.0120.00914.92
7.3.120.0110.01015.05
7.3.110.0070.01514.55
7.3.100.0110.01114.91
7.3.90.0100.01115.04
7.3.80.0120.00914.99
7.3.70.0140.00714.64
7.3.60.0030.01215.04
7.3.50.0070.01114.91
7.3.40.0070.01414.95
7.3.30.0000.02014.64
7.3.20.0140.00716.67
7.3.10.0070.01416.59
7.3.00.0070.01316.79
7.2.250.0100.01415.02
7.2.240.0100.01614.97
7.2.230.0030.01715.21
7.2.220.0070.00715.31
7.2.210.0090.00915.29
7.2.200.0090.01215.04
7.2.190.0070.00714.96
7.2.180.0070.01415.00
7.2.170.0100.01015.12
7.2.00.0070.01019.59
7.1.330.0060.01615.79
7.1.320.0070.01716.04
7.1.310.0090.01215.95
7.1.300.0000.02015.94
7.1.290.0100.01315.59
7.1.280.0070.01715.80
7.1.270.0130.01015.78
7.1.260.0140.00715.71
7.1.70.0030.01217.09
7.1.60.0100.02219.70
7.1.50.0040.02917.08
7.1.00.0230.06022.48
7.0.200.0070.00716.59
7.0.140.0070.08021.99
7.0.60.0100.06720.05
7.0.50.0070.04317.87
7.0.40.0000.06320.09
7.0.30.0300.07020.20
7.0.20.0230.03720.08
7.0.10.0130.05720.19
7.0.00.0170.08320.22
5.6.210.0230.07320.70
5.6.200.0130.08718.21
5.6.190.0000.05320.61
5.6.180.0300.06320.39
5.6.170.0300.08720.62
5.6.160.0200.08320.57
5.6.150.0130.07718.15
5.6.140.0070.06318.27
5.6.130.0130.06718.17
5.6.120.0100.05320.99
5.6.110.0200.08020.89
5.6.100.0030.09320.99
5.6.90.0100.07721.02
5.6.80.0170.08320.53
5.6.70.4470.04720.38
5.5.350.0000.09720.43
5.5.340.0170.08017.99
5.5.330.0070.08720.44
5.5.320.0270.05020.31
5.5.310.0270.06720.30
5.5.300.0000.05018.07
5.5.290.0100.04317.98
5.5.280.0070.05020.98
5.5.270.0130.03720.95
5.5.260.0070.08720.68
5.5.250.0130.09020.61
5.5.240.0000.08720.25
5.4.450.0270.03719.30
5.4.440.3730.03719.47
5.4.430.0370.08319.32
5.4.420.0370.06719.57
5.4.410.0230.04019.37
5.4.400.0300.05018.98
5.4.390.2400.04318.99
5.4.380.0230.05319.15
5.4.370.0270.03719.32
5.4.360.0400.08019.22
5.4.350.0430.06319.14
5.4.340.0300.05719.22
5.4.320.0570.06719.19
5.4.310.0700.05719.24
5.4.300.0120.04712.51
5.4.290.0170.06312.50
5.4.280.0670.06319.16
5.4.270.0530.06319.09
5.4.260.0330.08019.23
5.4.250.0500.03719.18
5.4.240.0300.03319.21
5.4.230.0430.07019.09
5.4.220.0270.07318.96
5.4.210.0370.04719.18
5.4.200.0270.08319.14
5.4.190.0370.03319.30
5.4.180.0470.04018.82
5.4.170.0300.03718.85
5.4.160.0330.06018.85
5.4.150.4430.03719.07
5.4.140.4100.03716.46
5.4.130.0370.07016.32
5.4.120.0200.04716.29
5.4.110.0330.05716.40
5.4.100.0270.04016.37
5.4.90.0200.04316.59
5.4.80.0070.04716.23
5.4.70.0100.05716.44
5.4.60.0100.03316.55
5.4.50.0030.08316.25
5.4.40.0070.08316.55
5.4.30.0300.07016.18
5.4.20.0370.05716.51
5.4.10.3430.04016.34
5.4.00.3700.03315.80
5.3.290.4300.04315.82
5.3.280.3430.04015.84
5.3.270.3670.03715.84
5.3.260.3630.05014.75
5.3.250.1800.05314.50
5.3.240.0270.07014.71
5.3.230.0270.05014.64
5.3.220.3670.04014.64
5.3.210.0270.07714.68
5.3.200.0370.07714.68
5.3.190.0170.04714.54
5.3.180.0170.04714.71
5.3.170.0030.08714.48
5.3.160.0430.07714.47
5.3.150.0400.06314.48
5.3.140.0400.07014.56
5.3.130.0270.05314.69
5.3.120.0330.06014.46
5.3.110.0530.07314.46
5.3.100.3200.04014.02
5.3.90.0500.03313.99
5.3.80.0370.07014.11
5.3.70.0270.05313.93

preferences:
35.15 ms | 401 KiB | 5 Q