3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (phpversion() != '7.0.0') { die; } $ids = []; for($i=0; $i<1000000; $i++) { $time = time(); $randomString1 = bin2hex(random_bytes(20)); $randomString2 = bin2hex(random_bytes(10)); $ids[] = md5($time.$randomString1.$randomString2); } $a = array_count_values($ids); asort($a); var_dump( $a[0] );

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)
7.4.00.0030.01314.89
7.3.120.0040.01214.58
7.3.110.0040.01114.61
7.3.100.0120.00314.70
7.3.90.0100.00314.75
7.3.80.0060.00914.63
7.3.70.0090.00014.79
7.3.60.0060.01214.84
7.3.50.0060.01014.66
7.3.40.0080.00314.74
7.3.30.0040.01114.60
7.3.20.0060.00616.26
7.3.10.0070.00316.57
7.3.00.0110.00316.53
7.2.250.0030.01314.82
7.2.240.0070.01114.94
7.2.230.0050.00514.59
7.2.220.0050.00514.82
7.2.210.0080.00814.93
7.2.200.0030.01015.04
7.2.190.0150.00414.84
7.2.180.0030.01215.05
7.2.170.0030.01214.82
7.2.00.0210.00419.18
7.1.330.0140.00015.41
7.1.320.0060.00315.92
7.1.310.0070.00715.58
7.1.300.0030.01415.50
7.1.290.0030.01015.40
7.1.280.0030.01015.75
7.1.270.0070.00715.70
7.1.260.0060.00615.82
7.1.100.0090.00318.07
7.1.70.0090.00317.02
7.1.60.0100.01419.52
7.1.50.0030.02116.48
7.1.00.0100.07022.46
7.0.200.0050.00216.57
7.0.100.0070.03021.70
7.0.90.0070.04721.71
7.0.80.0030.08321.65
7.0.70.0030.04321.76
7.0.60.0100.08321.72
7.0.50.0100.08321.96
7.0.40.0130.07020.19
7.0.30.0130.08019.95
7.0.20.0170.07320.17
7.0.10.0000.06020.09
7.0.02.0370.46335.86
5.6.280.0000.03321.04
5.6.250.0070.07320.59
5.6.240.0130.06720.50
5.6.230.0230.06320.53
5.6.220.0030.08320.62
5.6.210.0130.07720.64
5.6.200.0070.04720.95
5.6.190.0200.06021.05
5.6.180.0070.09021.03
5.6.170.0170.07021.00
5.6.160.0170.04721.08
5.6.150.0030.04721.13
5.6.140.0070.08321.05
5.6.130.0030.05320.95
5.6.120.0070.07721.13
5.6.110.0030.09321.01
5.6.100.0100.07321.00
5.6.90.0100.05321.00
5.6.80.0130.07020.41
5.6.70.0100.07020.54
5.6.60.0030.08720.41
5.6.50.0070.06720.44
5.6.40.0130.08720.29
5.6.30.0100.07020.52
5.6.20.0030.07320.35
5.6.10.0130.07020.30
5.6.00.0070.04720.47
5.5.380.0100.07320.36
5.5.370.0000.08020.36
5.5.360.0100.04720.38
5.5.350.0030.05320.42
5.5.340.0030.08720.87
5.5.330.0130.07320.79
5.5.320.0130.06320.89
5.5.310.0100.05720.72
5.5.300.0130.06020.84
5.5.290.0130.07020.87
5.5.280.0100.07320.73
5.5.270.0030.07720.78
5.5.260.0100.05020.71
5.5.250.0030.08320.70
5.5.240.0070.08020.18
5.5.230.0070.08320.25
5.5.220.0030.07020.20
5.5.210.0070.08020.11
5.5.200.0000.09020.22
5.5.190.0100.07720.15
5.5.180.0030.05320.21
5.5.160.0100.07020.23
5.5.150.0130.07320.23
5.5.140.0130.07320.23
5.5.130.0030.07320.26
5.5.120.0070.07720.23
5.5.110.0100.06720.27
5.5.100.0100.04320.01
5.5.90.0100.07320.09
5.5.80.0170.04020.11
5.5.70.0000.06319.93
5.5.60.0100.07320.15
5.5.50.0130.06720.05
5.5.40.0100.07020.15
5.5.30.0100.07319.92
5.5.20.0170.07320.08
5.5.10.0070.04720.11
5.5.00.0070.08320.02

preferences:
26.43 ms | 401 KiB | 5 Q