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, $cycles = 10000) { for ($i =0; $i < $cycles; $i++) { $closure(); } echo printf('Runns: %.6f', 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)
7.4.00.0100.01314.85
7.3.120.0100.00714.66
7.3.110.0070.01414.45
7.3.100.0130.00614.93
7.3.90.0060.01314.88
7.3.80.0070.00714.58
7.3.70.0030.01314.68
7.3.60.0090.00914.84
7.3.50.0030.01314.89
7.3.40.0100.00714.68
7.3.30.0000.01514.50
7.3.20.0030.01316.71
7.3.10.0060.01316.29
7.3.00.0030.01316.32
7.2.250.0070.01814.80
7.2.240.0030.01515.20
7.2.230.0120.00614.87
7.2.220.0030.01515.16
7.2.210.0030.00815.27
7.2.200.0060.01214.66
7.2.190.0110.00614.94
7.2.180.0070.01315.01
7.2.170.0000.01815.00
7.2.00.0000.01719.54
7.1.330.0090.00915.75
7.1.320.0070.01315.44
7.1.310.0090.01315.73
7.1.300.0040.01115.85
7.1.290.0030.01715.97
7.1.280.0060.01615.77
7.1.270.0000.02215.86
7.1.260.0060.01315.68
7.1.70.0030.00917.02
7.1.60.0040.01419.40
7.1.50.0030.01616.62
7.1.00.0070.07322.43
7.0.200.0000.01116.75
7.0.140.0100.07322.13
7.0.60.0030.08719.88
7.0.50.0030.08017.87
7.0.40.0070.06720.20
7.0.30.0130.06720.13
7.0.20.0270.04720.20
7.0.10.0300.04320.08
7.0.00.0200.07020.25
5.6.280.0000.09021.02
5.6.210.0100.09020.54
5.6.200.0070.09318.18
5.6.190.0070.09020.48
5.6.180.0270.09020.67
5.6.170.0270.03720.71
5.6.160.0030.09320.54
5.6.150.0030.07718.23
5.6.140.0070.08718.13
5.6.130.0100.08718.20
5.6.120.0070.09721.06
5.6.110.0100.04720.99
5.6.100.0030.10321.14
5.6.90.0170.08020.98
5.6.80.0130.06720.52
5.6.70.0270.09320.39
5.5.350.0300.08720.37
5.5.340.0100.04017.95
5.5.330.0070.06020.29
5.5.320.0170.04720.26
5.5.310.0200.04720.30
5.5.300.0030.09317.94
5.5.290.0100.09717.98
5.5.280.0130.08020.86
5.5.270.0100.09020.87
5.5.260.0030.05720.84
5.5.250.0130.08720.63
5.5.240.0100.04320.26
5.4.450.0200.07719.28
5.4.440.0200.05019.42
5.4.430.0230.04719.31
5.4.420.0170.05319.31
5.4.410.0270.07319.42
5.4.400.0230.06019.22
5.4.390.0270.05718.88
5.4.380.0230.05718.87
5.4.370.0170.05319.16
5.4.360.0230.06019.15
5.4.350.0130.06719.22
5.4.340.0230.04019.09
5.4.320.0200.06718.95
5.4.310.0230.04018.98
5.4.300.0300.05319.21
5.4.290.0300.05718.84
5.4.280.0230.06018.85
5.4.270.0200.08319.14
5.4.260.0170.06719.08
5.4.250.0230.08018.94
5.4.240.0300.05318.94
5.4.230.0300.07019.13
5.4.220.0200.04719.19
5.4.210.0400.06319.21
5.4.200.0170.04319.08
5.4.190.0200.05318.84
5.4.180.0300.04718.87
5.4.170.0330.07019.05
5.4.160.0230.08318.93
5.4.150.0230.04719.22
5.4.140.0300.04316.55
5.4.130.0170.04316.38
5.4.120.0300.05016.38
5.4.110.0170.05316.24
5.4.100.0170.04316.32
5.4.90.0200.04016.42
5.4.80.0230.07716.48
5.4.70.0170.08016.49
5.4.60.0300.07016.51
5.4.50.0300.07016.53
5.4.40.0170.04316.53
5.4.30.0170.06316.42
5.4.20.0230.07716.48
5.4.10.0100.06716.18
5.4.00.0200.08015.82
5.3.290.0270.09014.55
5.3.280.0270.04014.61
5.3.270.0100.07714.59
5.3.260.0230.04314.53
5.3.250.0300.04314.60
5.3.240.0230.07714.53
5.3.230.0200.06014.72
5.3.220.0200.04314.69
5.3.210.0270.06714.50
5.3.200.0270.07714.57
5.3.190.0370.04014.48
5.3.180.0230.08714.66
5.3.170.0270.07714.73
5.3.160.0200.09314.54
5.3.150.0270.06714.62
5.3.140.0300.07714.55
5.3.130.0200.04314.71
5.3.120.0230.06714.77
5.3.110.0170.05014.53
5.3.100.0170.07314.13
5.3.90.0230.04014.13
5.3.80.0300.07713.94
5.3.70.0200.06013.95
5.3.60.0230.08014.13
5.3.50.0270.07314.04
5.3.40.0270.07713.88
5.3.30.0130.05713.89
5.3.20.0270.05713.79
5.3.10.0200.08013.67
5.3.00.0330.04013.66
5.2.170.0230.03312.07
5.2.160.0230.03312.07
5.2.150.0130.07012.07
5.2.140.0170.06312.07
5.2.130.0170.04712.07
5.2.120.0130.05312.07
5.2.110.0230.04312.07
5.2.100.0170.04712.07
5.2.90.0130.03712.07
5.2.80.0200.06012.07
5.2.70.0200.05712.07
5.2.60.0170.03012.07
5.2.50.0200.06012.07
5.2.40.0100.03312.07
5.2.30.0130.03012.07
5.2.20.0200.05712.07
5.2.10.0170.02712.07
5.2.00.0200.04712.07
5.1.60.0200.04012.07
5.1.50.0070.03012.07
5.1.40.0170.03712.07
5.1.30.0130.02712.07
5.1.20.0200.05312.07
5.1.10.0130.03712.07
5.1.00.0130.05312.07
5.0.50.0000.04712.07
5.0.40.0070.04712.07
5.0.30.0130.06012.07
5.0.20.0070.02712.07
5.0.10.0070.04712.07
5.0.00.0100.04712.07
4.4.90.0130.02312.07
4.4.80.0070.04012.07
4.4.70.0070.03712.07
4.4.60.0130.01012.07
4.4.50.0070.03012.07
4.4.40.0070.05012.07
4.4.30.0070.03312.07
4.4.20.0070.03012.07
4.4.10.0130.02712.07
4.4.00.0070.05712.07
4.3.110.0070.02712.07
4.3.100.0100.02312.07
4.3.90.0100.01712.07
4.3.80.0070.04712.07
4.3.70.0070.03012.07
4.3.60.0070.02712.07
4.3.50.0100.02312.07
4.3.40.0070.04312.07
4.3.30.0030.03012.07
4.3.20.0070.03012.07
4.3.10.0070.02312.07
4.3.00.0000.02012.07

preferences:
42.68 ms | 401 KiB | 5 Q