3v4l.org

run code in 300+ PHP versions simultaneously
<?php $gens = []; for ($i = 0; $i < 1000; $i++) { $entropy=1; if (function_exists("posix_getpid")) $entropy *= posix_getpid(); if (function_exists("memory_get_usage")) $entropy *= memory_get_usage(); list($usec, $sec) = explode(" ", microtime()); $usec *= 1000000; $entropy *= $usec; mt_srand($entropy); $result = mt_rand(); if (in_array($result, $gens)) { echo 'Count: ' . count($gens) . PHP_EOL; echo 'COLLISION: ' . $result . PHP_EOL; } else { $gens[] = $result; } }

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)
7.4.10.0050.01714.75
7.4.00.0070.01615.06
7.3.130.0050.01815.09
7.3.120.0080.01514.96
7.3.110.0090.01314.78
7.3.100.0030.01814.81
7.3.90.0100.01015.01
7.3.80.0070.01214.94
7.3.70.0070.01114.73
7.3.60.0080.01015.04
7.3.50.0050.01614.62
7.3.40.0080.00914.75
7.3.30.0080.01014.89
7.3.20.0040.01316.58
7.3.10.0050.01616.67
7.3.00.0040.01316.76
7.2.260.0050.01914.99
7.2.250.0030.01914.94
7.2.240.0110.00814.96
7.2.230.0030.01615.12
7.2.220.0090.01415.07
7.2.210.0070.01315.18
7.2.200.0090.01215.07
7.2.190.0080.01115.12
7.2.180.0050.01315.00
7.2.170.0050.01014.92
7.2.160.0070.01214.89
7.2.150.0070.01416.67
7.2.140.0090.00916.86
7.2.130.0030.01717.00
7.2.120.0050.01316.76
7.2.110.0070.00916.78
7.2.100.0090.01316.97
7.2.90.0030.01116.92
7.2.80.0030.01516.91
7.2.70.0030.01916.72
7.2.60.0050.01116.95
7.2.50.0070.01316.96
7.2.40.0090.00816.95
7.2.30.0060.01617.73
7.2.20.0060.01717.83
7.2.10.0080.01717.97
7.2.00.0070.01518.33
7.1.330.0060.01215.86
7.1.320.0060.01015.70
7.1.310.0060.01315.77
7.1.300.0060.01615.91
7.1.290.0040.01415.84
7.1.280.0050.01215.76
7.1.270.0040.01715.53
7.1.260.0060.00715.96
7.1.250.0080.00715.80
7.1.240.0030.01615.97
7.1.230.0100.00915.76
7.1.220.0030.01515.84
7.1.210.0050.01215.78
7.1.200.0090.00915.81
7.1.190.0050.01715.76
7.1.180.0030.01315.76
7.1.170.0040.01515.78
7.1.160.0020.01415.59
7.1.150.0070.01616.83
7.1.140.0050.01716.85
7.1.130.0060.01616.90
7.1.120.0080.01516.57
7.1.110.0080.01216.58
7.1.100.0020.01817.04
7.1.90.0080.01316.58
7.1.80.0060.01116.60
7.1.70.0040.01516.40
7.1.60.0110.01721.57
7.1.50.0150.01520.81
7.1.40.0170.01922.01
7.1.30.0110.01521.88
7.1.20.0100.01622.01
7.1.10.0070.01516.10
7.1.00.0100.02917.62
7.0.330.0040.01415.51
7.0.320.0080.00915.50
7.0.310.0030.01415.43
7.0.300.0090.01415.43
7.0.290.0030.01515.48
7.0.280.0070.01415.30
7.0.270.0080.01316.36
7.0.260.0060.01516.35
7.0.250.0070.01616.20
7.0.240.0060.01616.29
7.0.230.0080.01416.05
7.0.220.0080.01416.37
7.0.210.0030.01815.74
7.0.200.0050.01416.01
7.0.190.0060.01615.81
7.0.180.0050.01515.67
7.0.170.0040.01615.74
7.0.160.0080.01315.69
7.0.150.0040.01515.79
7.0.140.0100.01315.61
7.0.130.0050.01715.76
7.0.120.0060.01415.85
7.0.110.0040.01815.66
7.0.100.0100.01215.61
7.0.90.0040.01815.77
7.0.80.0050.02015.11
7.0.70.0090.01515.65
7.0.60.0090.02816.80
7.0.50.0060.03316.35
7.0.40.0070.02215.85
7.0.30.0100.03715.88
7.0.20.0110.02915.86
7.0.10.0060.03515.91
7.0.00.0060.03415.84
5.6.400.0050.02214.50
5.6.390.0060.02214.48
5.6.380.0040.02014.54
5.6.370.0100.01614.42
5.6.360.0020.02214.45
5.6.350.0070.01614.66
5.6.340.0040.02314.46
5.6.330.0070.01514.48
5.6.320.0070.02514.48
5.6.310.0050.01914.38
5.6.300.0120.04716.35
5.6.290.0120.03816.60
5.6.280.0110.04617.86
5.6.270.0130.04516.53
5.6.260.0140.04316.64
5.6.250.0090.04816.56
5.6.240.0090.04416.61
5.6.230.0080.04916.49
5.6.220.0110.04516.42
5.6.210.0100.05517.54
5.6.200.0130.06016.90
5.6.190.0100.06017.66
5.6.180.0170.05417.62
5.6.170.0160.05817.51
5.6.160.0110.05617.51
5.6.150.0090.05916.93
5.6.140.0100.05116.98
5.6.130.0100.05817.00
5.6.120.0090.06117.74
5.6.110.0170.05817.65
5.6.100.0110.05217.53
5.6.90.0110.05317.65
5.6.80.0110.05117.34
5.6.70.0130.04216.32
5.6.60.0110.04416.39
5.6.50.0040.04516.30
5.6.40.0070.04916.30
5.6.30.0100.04616.23
5.6.20.0100.04716.37
5.6.10.0130.04416.28
5.6.00.0120.03816.35
5.5.380.0180.08117.52
5.5.370.0180.10117.44
5.5.360.0250.08617.54
5.5.350.0210.08218.93
5.5.340.0170.10018.00
5.5.330.0160.09219.27
5.5.320.0100.06819.09
5.5.310.0240.09419.16
5.5.300.0230.09218.00
5.5.290.0080.08617.84
5.5.280.0160.07919.43
5.5.270.0170.10219.25
5.5.260.0140.08919.28
5.5.250.0140.07819.29
5.5.240.2250.06118.79
5.5.230.0190.10517.27
5.5.220.0150.08417.35
5.5.210.0220.08617.34
5.5.200.0160.10417.32
5.5.190.0270.10017.09
5.5.180.0200.10417.34
5.5.160.0170.07517.32
5.5.150.0200.10217.09
5.5.140.0200.10117.40
5.5.130.0190.08717.06
5.5.120.0190.10117.26
5.5.110.0210.08617.31
5.5.100.0160.10817.14
5.5.90.0210.09817.05
5.5.80.0140.11017.23
5.5.70.0220.09717.20
5.5.60.0200.07717.21
5.5.50.0150.08417.20
5.5.40.0250.08717.21
5.5.30.0200.09717.11
5.5.20.0220.09517.20
5.5.10.0200.09917.22
5.5.00.0150.09717.02

preferences:
45.14 ms | 401 KiB | 5 Q