3v4l.org

run code in 300+ PHP versions simultaneously
<?php function randomString($length = 6) { $str = ""; $characters = array_merge(range('A','Z'), range('a','z'), range('0','9')); $max = count($characters) - 1; for ($i = 0; $i < $length; $i++) { $rand = mt_rand(0, $max); $str .= $characters[$rand]; } return $str; } 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)
7.2.00.0000.01319.18
7.1.70.0000.01517.25
7.1.60.0130.01019.70
7.1.50.0110.01116.99
7.1.00.0130.06722.40
7.0.200.0190.00816.63
7.0.140.0000.07721.98
7.0.60.0100.06719.78
7.0.50.0030.05317.87
7.0.40.0100.08020.13
7.0.30.0300.05020.07
7.0.20.0200.03720.44
7.0.10.0100.04020.06
7.0.00.0130.06720.10
5.6.280.0030.07320.80
5.6.210.0000.04320.71
5.6.200.0070.06318.24
5.6.190.0030.05720.64
5.6.180.3600.05020.64
5.6.170.0270.08020.55
5.6.160.0100.04020.44
5.6.150.0030.08718.19
5.6.140.0100.03718.27
5.6.130.0100.07718.14
5.6.120.0070.06021.02
5.6.110.0100.08020.99
5.6.100.0070.07720.94
5.6.90.0100.03321.13
5.6.80.0170.08020.42
5.6.70.4270.03320.53
5.5.350.0100.08020.39
5.5.340.0130.07017.99
5.5.330.0000.09720.37
5.5.320.0230.03720.51
5.5.310.0200.06320.38
5.5.300.0000.05317.95
5.5.290.0000.04318.07
5.5.280.0070.04020.77
5.5.270.0070.05020.97
5.5.260.0070.04020.76
5.5.250.0100.04720.48
5.5.240.0270.04320.23
5.4.450.0200.04728.28
5.4.440.0430.04327.85
5.4.430.0200.05026.16
5.4.420.0230.04726.13
5.4.410.0170.04726.13
5.4.400.0230.04326.13
5.4.390.0100.04726.12
5.4.380.0730.05318.52
5.4.370.0800.05018.57
5.4.360.0730.05018.52
5.4.350.0800.05318.53
5.4.340.0830.06018.55
5.4.320.0090.05012.51
5.4.310.0070.03712.52
5.4.300.0100.04612.52
5.4.290.0090.04912.51
5.4.280.0130.04212.41
5.4.270.0130.04612.41
5.4.260.0120.04912.41
5.4.250.0060.05412.41
5.4.240.0110.04112.41
5.4.230.0100.04612.40
5.4.220.0040.04412.40
5.4.210.0120.04612.40
5.4.200.0130.04512.41
5.4.190.0100.04912.40
5.4.180.0100.04312.40
5.4.170.0070.04112.41
5.4.160.0070.04112.40
5.4.150.0080.04112.40
5.4.140.0070.04312.08
5.4.130.0110.04112.07
5.4.120.0090.03912.03
5.4.110.0040.03912.02
5.4.100.0030.04512.03
5.4.90.0090.04012.02
5.4.80.0070.03712.02
5.4.70.0050.03912.02
5.4.60.0060.04312.02
5.4.50.0110.04712.02
5.4.40.0110.04712.01
5.4.30.0080.04912.00
5.4.20.0110.04812.00
5.4.10.0060.04112.00
5.4.00.0090.03911.50
5.3.290.0050.04112.80
5.3.280.0100.04712.71
5.3.270.0090.04112.72
5.3.260.0100.05412.72
5.3.250.0060.05112.72
5.3.240.0090.05612.72
5.3.230.0160.04412.71
5.3.220.0170.08312.68
5.3.210.0100.06912.68
5.3.200.0060.05512.68
5.3.190.0070.05212.68
5.3.180.0100.04812.67
5.3.170.0080.05112.67
5.3.160.0080.04812.68
5.3.150.0070.04512.67
5.3.140.0110.04712.66
5.3.130.0080.04512.66
5.3.120.0100.04712.66
5.3.110.0110.05012.66
5.3.100.0130.04312.12
5.3.90.0060.06112.11
5.3.80.0070.04912.10
5.3.70.0120.05312.10
5.3.60.0120.04712.08
5.3.50.0100.04712.04
5.3.40.0120.04612.03
5.3.30.0170.06011.99
5.3.20.0190.06511.77
5.3.10.0070.04911.74
5.3.00.0280.13211.73
5.2.170.0050.0479.23
5.2.160.0090.0419.23
5.2.150.0120.0409.23
5.2.140.0070.0429.22
5.2.130.0080.0459.18
5.2.120.0060.0439.18
5.2.110.0060.0419.19
5.2.100.0070.0419.19
5.2.90.0050.0439.19
5.2.80.0070.0429.19
5.2.70.0070.0429.18
5.2.60.0070.0429.14
5.2.50.0030.0439.11
5.2.40.0060.0409.08
5.2.30.0070.0429.05
5.2.20.0020.0339.04
5.2.10.0080.0268.95
5.2.00.0120.0358.81
5.1.60.0080.0328.10
5.1.50.0060.0248.10
5.1.40.0060.0248.08
5.1.30.0050.0278.43
5.1.20.0020.0308.45
5.1.10.0050.0358.18
5.1.00.0030.0288.18
5.0.50.0020.0256.65
5.0.40.0060.0206.52
5.0.30.0050.0456.32
5.0.20.0030.0306.29
5.0.10.0030.0316.27
5.0.00.0060.0306.27
4.4.90.0050.0214.78
4.4.80.0050.0214.75
4.4.70.0060.0204.75
4.4.60.0040.0154.75
4.4.50.0060.0174.77
4.4.40.0020.0294.71
4.4.30.0050.0144.76
4.4.20.0030.0164.84
4.4.10.0050.0214.85
4.4.00.0040.0344.76
4.3.110.0030.0184.67
4.3.100.0020.0244.66
4.3.90.0040.0214.64
4.3.80.0030.0324.58
4.3.70.0030.0214.63
4.3.60.0050.0204.62
4.3.50.0020.0234.63
4.3.40.0030.0334.54
4.3.30.0000.0233.31
4.3.20.0010.0243.29
4.3.10.0050.0193.25
4.3.00.0000.01726.12

preferences:
38.49 ms | 401 KiB | 5 Q