3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1,2,3]; foreach($a as $v) { echo "$v\n"; unset($a[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)
8.3.70.0060.00918.68
8.3.60.0120.00318.30
8.3.50.0150.00618.20
8.3.40.0090.00618.66
8.3.30.0120.00318.47
8.3.20.0000.00719.34
8.3.10.0040.00423.53
8.3.00.0000.00720.71
8.2.190.0070.00716.58
8.2.180.0070.01116.50
8.2.170.0180.00322.96
8.2.160.0070.00722.25
8.2.150.0070.00024.18
8.2.140.0030.00624.66
8.2.130.0040.00426.16
8.2.120.0000.00819.67
8.2.110.0000.00820.29
8.2.100.0040.00817.72
8.2.90.0050.00317.88
8.2.80.0080.00017.97
8.2.70.0040.00417.93
8.2.60.0030.00618.16
8.2.50.0040.00418.10
8.2.40.0040.00419.43
8.2.30.0040.00419.19
8.2.20.0040.00418.17
8.2.10.0000.00818.04
8.2.00.0030.00617.58
8.1.280.0030.01225.92
8.1.270.0060.00318.86
8.1.260.0040.00426.35
8.1.250.0000.00728.09
8.1.240.0030.00622.20
8.1.230.0050.00517.60
8.1.220.0070.00017.74
8.1.210.0040.00418.77
8.1.200.0060.00317.13
8.1.190.0040.00417.13
8.1.180.0000.00818.10
8.1.170.0040.00418.66
8.1.160.0000.00718.77
8.1.150.0000.00718.80
8.1.140.0000.00822.14
8.1.130.0000.00720.27
8.1.120.0040.00417.35
8.1.110.0030.00517.43
8.1.100.0050.00217.44
8.1.90.0040.00417.46
8.1.80.0020.00517.37
8.1.70.0000.00717.42
8.1.60.0040.00417.62
8.1.50.0040.00417.53
8.1.40.0040.00417.56
8.1.30.0090.00017.69
8.1.20.0020.00517.67
8.1.10.0040.00417.48
8.1.00.0050.00217.58
8.0.300.0070.00018.77
8.0.290.0050.00316.58
8.0.280.0030.00318.46
8.0.270.0070.00017.17
8.0.260.0000.00618.36
8.0.250.0040.00416.97
8.0.240.0000.00716.89
8.0.230.0000.00717.01
8.0.220.0030.00316.89
8.0.210.0040.00316.92
8.0.200.0070.00016.80
8.0.190.0070.00016.95
8.0.180.0000.00716.80
8.0.170.0050.00316.93
8.0.160.0030.00516.86
8.0.150.0050.00216.80
8.0.140.0040.00316.81
8.0.130.0050.00013.36
8.0.120.0050.00216.75
8.0.110.0040.00416.81
8.0.100.0000.00716.94
8.0.90.0000.00716.80
8.0.80.0100.00516.87
8.0.70.0000.00816.69
8.0.60.0040.00416.94
8.0.50.0040.00416.91
8.0.30.0110.00416.90
8.0.20.0090.00917.40
8.0.10.0050.00216.98
8.0.00.0090.00916.78
7.4.330.0000.00515.55
7.4.320.0030.00316.60
7.4.300.0000.00816.50
7.4.290.0020.00516.56
7.4.280.0050.00316.48
7.4.270.0000.00716.61
7.4.260.0030.00716.63
7.4.250.0040.00416.61
7.4.240.0030.00316.50
7.4.230.0040.00416.68
7.4.220.0040.00416.51
7.4.210.0060.01016.52
7.4.200.0050.00216.60
7.4.160.0090.00716.60
7.4.140.0080.01017.86
7.4.130.0070.01016.40
7.4.120.0110.00616.55
7.3.330.0050.00013.20
7.3.320.0030.00313.15
7.3.310.0030.00616.11
7.3.300.0000.00716.28
7.3.290.0020.00516.26
7.3.280.0070.01016.26
7.3.260.0110.00716.42
7.3.240.0110.00816.27

preferences:
54.76 ms | 401 KiB | 5 Q