3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = function($p = 'abcde', $c = 'abc') { return substr($p, 0, strlen($c)) == $c; }; $test1 = function($p = 'abcde', $c = 'abc') { return strncmp($p, $c, strlen($c)); }; $print = function($closure, $s, $cycles = 100) { for ($i =0; $i < $cycles; $i++) { $closure(); } echo printf('Runns: %s', microtime(1) - $s); echo PHP_EOL; }; $print($test, microtime(1)); $print($test1, microtime(1));

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)
7.2.00.0030.01019.47
7.1.70.0070.00017.19
7.1.60.0100.01419.31
7.1.50.0000.02116.95
7.1.00.0070.07322.35
7.0.200.0000.01016.58
7.0.140.0000.07722.05
7.0.60.0100.07719.92
7.0.50.0030.05017.88
7.0.40.0070.04019.98
7.0.30.0270.08320.21
7.0.20.0170.04720.14
7.0.10.0100.06720.20
7.0.00.0070.05720.30
5.6.280.0030.07020.82
5.6.210.0200.07320.61
5.6.200.0000.04318.20
5.6.190.0200.06320.47
5.6.180.0230.03720.49
5.6.170.0300.07720.50
5.6.160.0030.07020.43
5.6.150.0000.08318.15
5.6.140.0030.04318.18
5.6.130.0000.04318.28
5.6.120.0100.08021.01
5.6.110.0130.08021.00
5.6.100.0100.08020.99
5.6.90.0100.08721.09
5.6.80.0100.08020.52
5.5.350.0000.06020.43
5.5.340.0070.08018.05
5.5.330.0030.04720.42
5.5.320.0230.08020.52
5.5.310.0270.07320.30
5.5.300.0030.05018.03
5.5.290.0130.07718.03
5.5.280.0100.08320.78
5.5.270.0070.04020.89
5.5.260.0000.04720.80
5.5.250.0030.06720.70
5.5.240.3770.04320.34
5.4.450.0730.04019.48
5.4.440.0170.05019.23
5.4.430.0770.06019.31
5.4.420.0700.05319.43
5.4.410.0870.05719.51
5.4.400.0670.06019.32
5.4.390.0670.06018.96
5.4.380.0270.06318.79
5.4.370.0200.05318.78
5.4.360.0230.05018.48
5.4.350.0270.05018.84
5.4.340.0170.05718.59
5.4.320.0060.04412.51
5.4.310.0080.05112.50
5.4.300.0050.03812.50
5.4.290.0050.03912.50
5.4.280.0040.04012.40
5.4.270.0050.04112.40
5.4.260.0050.04512.41
5.4.250.0060.04312.41
5.4.240.0110.03112.40
5.4.230.0070.03712.39
5.4.220.0060.03712.40
5.4.210.0040.03712.39
5.4.200.0050.03912.40
5.4.190.0140.04612.37
5.4.180.0140.04412.38
5.4.170.0180.04512.39
5.4.160.0180.04312.38
5.4.150.0230.06712.38
5.4.140.0150.04312.05
5.4.130.0150.04712.05
5.4.120.0180.03912.00
5.4.110.0160.04212.00
5.4.100.0180.04212.00
5.4.90.0150.04612.00
5.4.80.0140.04412.00
5.4.70.0100.04812.00
5.4.60.0140.04412.00
5.4.50.0150.04211.99
5.4.40.0170.04011.98
5.4.30.0150.04311.97
5.4.20.0150.04311.98
5.4.10.0150.04311.98
5.4.00.0210.03811.47
5.3.290.0040.04112.80
5.3.280.0090.03612.70
5.3.270.0180.04512.72
5.3.260.0180.04312.72
5.3.250.0180.04312.72
5.3.240.0340.09312.72
5.3.230.0150.05212.71
5.3.220.0170.04912.68
5.3.210.0160.04712.68
5.3.200.0150.04912.68
5.3.190.0240.03912.68
5.3.180.0220.04412.67
5.3.170.0190.04212.67
5.3.160.0350.08812.68
5.3.150.0160.04412.67
5.3.140.0150.04912.66
5.3.130.0180.04612.66
5.3.120.0280.06412.66
5.3.110.0140.04712.66
5.3.100.0160.04512.12
5.3.90.0210.04012.10
5.3.80.0180.04212.08
5.3.70.0180.04312.08
5.3.60.0160.04412.07
5.3.50.0140.04612.01
5.3.40.0190.04012.01
5.3.30.0210.03611.98
5.3.20.0130.04411.76
5.3.10.0150.04111.73
5.3.00.0140.04211.71
5.2.170.0090.0379.16
5.2.160.0210.0559.16
5.2.150.0110.0359.16
5.2.140.0100.0369.16
5.2.130.0110.0349.12
5.2.120.0120.0339.11
5.2.110.0130.0339.13
5.2.100.0180.0579.12
5.2.90.0130.0329.11
5.2.80.0110.0359.11
5.2.70.0130.0339.11
5.2.60.0200.0569.07
5.2.50.0100.0369.04
5.2.40.0130.0349.01
5.2.30.0120.0348.98
5.2.20.0170.0298.98
5.2.10.0100.0368.90
5.2.00.0090.0368.75
5.1.60.0080.0328.05
5.1.50.0080.0328.04
5.1.40.0090.0308.04
5.1.30.0110.0308.37
5.1.20.0080.0338.40
5.1.10.0120.0308.12
5.1.00.0100.0318.12
5.0.50.0080.0256.60
5.0.40.0110.0216.46
5.0.30.0080.0376.27
5.0.20.0080.0246.25
5.0.10.0090.0226.22
5.0.00.0110.0326.21
4.4.90.0100.0144.78
4.4.80.0070.0174.76
4.4.70.0090.0164.75
4.4.60.0060.0194.76
4.4.50.0070.0174.77
4.4.40.0080.0274.71
4.4.30.0040.0214.76
4.4.20.0090.0164.84
4.4.10.0060.0194.84
4.4.00.0090.0264.76
4.3.110.0070.0184.66
4.3.100.0060.0204.66
4.3.90.0090.0154.63
4.3.80.0060.0294.59
4.3.70.0080.0164.63
4.3.60.0040.0204.63
4.3.50.0050.0194.63
4.3.40.0070.0264.54
4.3.30.0040.0213.28
4.3.20.0050.0183.27
4.3.10.0030.0203.23
4.3.00.0000.01315.59

preferences:
38.64 ms | 400 KiB | 5 Q