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 $it2) { echo "item = $it2\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)
8.4.120.0100.01020.38
8.4.110.0060.00322.49
8.4.100.0090.01217.46
8.4.90.0090.00818.65
8.4.80.0020.00619.64
8.4.70.0060.00917.66
8.4.60.0110.00218.59
8.4.50.0110.01017.54
8.4.40.0040.01520.44
8.4.30.0180.00020.41
8.4.20.0090.00319.21
8.4.10.0080.00022.09
8.3.250.0110.00818.88
8.3.240.0080.01116.71
8.3.230.0120.00716.73
8.3.220.0070.00117.13
8.3.210.0050.00316.56
8.3.200.0060.00316.43
8.3.190.0110.00716.88
8.3.180.0100.00917.16
8.3.170.0100.01316.54
8.3.160.0040.01418.70
8.3.150.0090.00617.15
8.3.140.0120.00316.79
8.3.130.0000.01116.45
8.3.120.0090.00620.65
8.3.110.0050.00320.94
8.3.100.0070.00724.06
8.3.90.0000.01326.77
8.3.80.0070.00416.63
8.3.70.0100.00616.63
8.3.60.0110.00316.50
8.3.50.0110.00420.34
8.3.40.0040.01121.86
8.3.30.0150.00018.55
8.3.20.0080.00024.18
8.3.10.0050.00324.66
8.3.00.0030.00626.16
8.2.290.0130.00520.35
8.2.280.0100.00816.73
8.2.270.0140.00417.27
8.2.260.0150.00318.13
8.2.250.0000.01016.56
8.2.240.0030.00518.72
8.2.230.0000.01022.58
8.2.220.0040.00437.54
8.2.210.0040.01426.77
8.2.200.0040.00416.38
8.2.190.0140.00716.58
8.2.180.0110.01125.92
8.2.170.0110.00422.96
8.2.160.0090.00622.96
8.2.150.0000.00725.66
8.2.140.0000.00824.66
8.2.130.0030.00526.16
8.2.120.0040.00426.16
8.2.110.0000.00920.52
8.2.100.0090.00317.92
8.2.90.0000.00818.84
8.2.80.0030.00517.97
8.2.70.0100.00017.63
8.2.60.0030.00617.80
8.2.50.0050.00518.07
8.2.40.0040.00418.34
8.2.30.0000.00718.05
8.2.20.0000.00820.43
8.2.10.0050.00218.10
8.2.00.0040.00419.29
8.1.330.0080.01022.11
8.1.320.0120.00717.87
8.1.310.0110.00416.24
8.1.300.0060.00320.12
8.1.290.0050.00530.84
8.1.280.0190.00325.92
8.1.270.0100.00023.99
8.1.260.0030.00526.35
8.1.250.0070.00028.09
8.1.240.0060.00322.38
8.1.230.0060.00617.43
8.1.220.0040.00417.77
8.1.210.0050.00318.77
8.1.200.0030.00717.35
8.1.190.0050.00317.35
8.1.180.0050.00318.10
8.1.170.0080.00018.71
8.1.160.0000.00718.89
8.1.150.0040.00418.64
8.1.140.0000.00817.48
8.1.130.0030.00318.80
8.1.120.0070.00017.51
8.1.110.0040.00417.46
8.1.100.0000.00717.33
8.1.90.0030.00517.34
8.1.80.0040.00717.37
8.1.70.0080.00817.32
8.1.60.0150.00017.45
8.1.50.0180.00017.39
8.1.40.0120.00617.32
8.1.30.0100.00217.43
8.1.20.0170.00017.58
8.1.10.0130.00717.36
8.1.00.0090.00917.38
8.0.300.0040.00418.77
8.0.290.0020.00516.75
8.0.280.0070.00018.48
8.0.270.0070.00016.69
8.0.260.0000.00618.48
8.0.250.0030.00316.91
8.0.240.0070.00016.93
8.0.230.0000.00716.81
8.0.220.0060.00016.90
8.0.210.0130.00316.77
8.0.200.0040.00816.86
8.0.190.0090.00616.78
8.0.180.0120.00316.79
8.0.170.0150.00016.79
8.0.160.0090.00616.80
8.0.150.0070.00816.75
8.0.140.0120.00316.66
8.0.130.0070.00716.71
8.0.120.0140.00116.74
8.0.110.0070.00716.64
8.0.100.0150.00016.66
8.0.90.0110.00316.71
8.0.80.0120.00316.77
8.0.70.0080.00516.63
8.0.60.0070.00716.73
8.0.50.0100.00516.71
8.0.30.0080.00816.76
8.0.20.0070.00716.86
8.0.10.0120.00216.91
7.4.330.0030.00315.55
7.4.320.0000.00716.50
7.4.300.0070.00716.40
7.4.290.0030.01316.36
7.4.280.0070.01016.32
7.4.270.0120.00416.40
7.4.260.0120.00016.44
7.4.250.0140.00016.48
7.4.240.0110.00416.46
7.4.230.0110.00616.56
7.4.220.0100.00316.34
7.4.210.0070.00716.45
7.4.200.0140.00016.51
7.4.190.0140.00016.55
7.4.180.0120.00016.54
7.4.160.0080.00516.56
7.4.150.0040.01116.54
7.4.140.0040.00916.45
7.4.130.0080.00816.45
7.4.120.0090.00616.35
7.4.110.0110.00416.32
7.4.100.0110.00316.45
7.4.90.0080.00616.24
7.4.80.0080.00516.39
7.4.70.0110.00316.34
7.4.60.0080.00516.39
7.4.50.0130.00016.22
7.4.40.0110.00316.14
7.4.30.0100.00316.24
7.4.20.0100.00316.31
7.4.10.0100.00316.43
7.4.00.0130.00016.19

preferences:
62.32 ms | 403 KiB | 5 Q