3v4l.org

run code in 300+ PHP versions simultaneously
<?php $list = [1,2,3,4]; foreach($list as &$it) { // DO NOTHING } // not unset $it foreach($list as $it) { echo "item = $it\n"; }

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)
8.3.60.0110.00416.38
8.3.50.0130.00620.34
8.3.40.0090.00621.92
8.3.30.0090.00618.56
8.3.20.0040.00424.18
8.3.10.0080.00024.66
8.3.00.0080.00026.16
8.2.180.0040.01225.92
8.2.170.0100.01019.02
8.2.160.0080.00822.96
8.2.150.0050.00225.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0070.00021.18
8.2.110.0030.00721.00
8.2.100.0120.00017.78
8.2.90.0000.00817.91
8.2.80.0000.00817.97
8.2.70.0030.00617.93
8.2.60.0030.00517.90
8.2.50.0000.00718.10
8.2.40.0080.00019.23
8.2.30.0040.00417.96
8.2.20.0000.00720.49
8.2.10.0000.00717.99
8.2.00.0050.00319.29
8.1.280.0100.01025.92
8.1.270.0050.00523.99
8.1.260.0030.00526.35
8.1.250.0050.00328.09
8.1.240.0100.00323.83
8.1.230.0110.00020.96
8.1.220.0090.00017.74
8.1.210.0080.00019.02
8.1.200.0000.00817.35
8.1.190.0000.00817.35
8.1.180.0000.00818.10
8.1.170.0040.00418.65
8.1.160.0040.00418.91
8.1.150.0000.00818.62
8.1.140.0050.00317.43
8.1.130.0040.00417.50
8.1.120.0050.00317.32
8.1.110.0090.00017.44
8.1.100.0070.00017.46
8.1.90.0000.00717.33
8.1.80.0030.00617.27
8.1.70.0130.00317.20
8.1.60.0140.00317.34
8.1.50.0090.00917.45
8.1.40.0120.00617.32
8.1.30.0080.00417.56
8.1.20.0060.01117.65
8.1.10.0150.00417.39
8.1.00.0110.00617.23
8.0.300.0000.00719.64
8.0.290.0050.00216.75
8.0.280.0030.00318.36
8.0.270.0030.00318.00
8.0.260.0000.00716.84
8.0.250.0000.00716.83
8.0.240.0000.00816.90
8.0.230.0030.00316.91
8.0.220.0030.00316.87
8.0.210.0080.00816.82
8.0.200.0120.00016.83
8.0.190.0150.00016.78
8.0.180.0120.00416.85
8.0.170.0090.00616.79
8.0.160.0110.00316.73
8.0.150.0070.00716.65
8.0.140.0060.00916.83
8.0.130.0130.00316.75
8.0.120.0120.00416.67
8.0.110.0090.00516.87
8.0.100.0140.00316.68
8.0.90.0070.00716.71
8.0.80.0140.00016.75
8.0.70.0070.00716.74
8.0.60.0140.00016.74
8.0.50.0100.00316.61
8.0.30.0160.00016.68
8.0.20.0110.00416.87
8.0.10.0140.00016.96
7.4.330.0000.00515.55
7.4.320.0030.00316.40
7.4.300.0080.00416.54
7.4.290.0150.00016.34
7.4.280.0070.01016.34
7.4.270.0110.00616.41
7.4.260.0080.00616.41
7.4.250.0100.00316.43
7.4.240.0150.00016.38
7.4.230.0090.00616.46
7.4.220.0070.00416.50
7.4.210.0090.00616.45
7.4.200.0110.00316.53
7.4.190.0100.00316.50
7.4.180.0060.00816.48
7.4.160.0100.00316.50
7.4.150.0130.00316.27
7.4.140.0130.00016.46
7.4.130.0120.00316.28
7.4.120.0120.00316.48
7.4.110.0110.00316.23
7.4.100.0130.00016.38
7.4.90.0050.00916.29
7.4.80.0110.00316.31
7.4.70.0090.00416.36
7.4.60.0060.00816.35
7.4.50.0040.00916.09
7.4.40.0100.00316.11
7.4.30.0070.00716.34
7.4.20.0040.00916.39
7.4.10.0040.00916.34
7.4.00.0140.00016.34

preferences:
45.22 ms | 400 KiB | 5 Q