3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [1, 2, 3]; foreach ($arr as &$num) { var_dump($num); $arr[3] = 4; } echo "\n\n====\n\n"; $arr = [1, 2, 3]; foreach ($arr as $num) { var_dump($num); $arr[3] = 4; }

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)
8.5.30.0070.00617.57
8.5.20.0110.00520.21
8.5.10.0150.00320.17
8.5.00.0140.00720.06
8.4.180.0190.00919.83
8.4.170.0150.01022.01
8.4.160.0150.00622.04
8.4.150.0030.00014.05
8.4.140.0150.00617.59
8.4.130.0080.01118.63
8.4.120.0100.01020.64
8.4.110.0120.00819.77
8.4.100.0140.00617.78
8.4.90.0100.01020.54
8.4.80.0040.00420.57
8.4.70.0060.00320.47
8.4.60.0130.00720.76
8.4.50.0030.00718.89
8.4.40.0130.00718.91
8.4.30.0100.01017.68
8.4.20.0100.01017.78
8.4.10.0160.00317.84
8.3.300.0140.01018.42
8.3.290.0110.00920.61
8.3.280.0150.00720.11
8.3.270.0110.01016.43
8.3.260.0120.00816.55
8.3.250.0030.00416.42
8.3.240.0120.00816.66
8.3.230.0050.00416.60
8.3.220.0060.00218.74
8.3.210.0110.00616.46
8.3.200.0060.00216.58
8.3.190.0070.00917.30
8.3.180.0150.00318.82
8.3.170.0090.00918.95
8.3.160.0060.00316.39
8.3.150.0120.00617.09
8.3.140.0140.00016.50
8.3.130.0090.00316.50
8.3.120.0050.00319.01
8.3.110.0070.00720.94
8.3.100.0030.00624.06
8.3.90.0000.01026.77
8.3.80.0030.00618.30
8.3.70.0110.00716.38
8.3.60.0070.00716.50
8.3.50.0120.00621.96
8.3.40.0150.00618.76
8.3.30.0150.00018.44
8.3.20.0000.00822.05
8.3.10.0000.00823.48
8.3.00.0080.00019.97
8.2.300.0130.00722.32
8.2.290.0100.00818.96
8.2.280.0110.00519.85
8.2.270.0070.01017.17
8.2.260.0120.00616.75
8.2.250.0130.00316.50
8.2.240.0060.00319.06
8.2.230.0030.00622.58
8.2.220.0030.00637.54
8.2.210.0080.00026.77
8.2.200.0030.00616.63
8.2.190.0140.00316.63
8.2.180.0090.01216.50
8.2.170.0110.00422.96
8.2.160.0030.01020.40
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00019.45
8.2.120.0000.00826.35
8.2.110.0090.00022.25
8.2.100.0060.00617.77
8.2.90.0000.00817.97
8.2.80.0040.00419.15
8.2.70.0060.00318.16
8.2.60.0080.00017.63
8.2.50.0090.00017.55
8.2.40.0090.00022.15
8.2.30.0000.00920.53
8.2.20.0080.00017.62
8.2.10.0040.00418.00
8.2.00.0000.00918.09
8.1.340.0130.00720.09
8.1.330.0100.00916.25
8.1.320.0120.00716.21
8.1.310.0040.00415.94
8.1.300.0000.01018.51
8.1.290.0060.00330.84
8.1.280.0180.00725.92
8.1.270.0040.00423.99
8.1.260.0050.00328.09
8.1.250.0040.00428.09
8.1.240.0060.00323.92
8.1.230.0000.01020.87
8.1.220.0040.00417.74
8.1.210.0040.00418.79
8.1.200.0030.00617.35
8.1.190.0040.00417.13
8.1.180.0050.00318.10
8.1.170.0040.00418.66
8.1.160.0040.00420.81
8.1.150.0050.00318.95
8.1.140.0040.00419.62
8.1.130.0070.00017.70
8.1.120.0030.00317.42
8.1.110.0000.00717.47
8.1.100.0000.00717.34
8.1.90.0040.00417.38
8.1.80.0000.00717.44
8.1.70.0000.00817.29
8.1.60.0040.00417.59
8.1.50.0040.00417.57
8.1.40.0000.00717.51
8.1.30.0000.00817.68
8.1.20.0080.00017.71
8.1.10.0070.00017.61
8.1.00.0040.00417.48
8.0.300.0000.00720.09
8.0.290.0020.00516.63
8.0.280.0000.00718.43
8.0.270.0050.00317.26
8.0.260.0020.00517.25
8.0.250.0030.00316.84
8.0.240.0000.00616.93
8.0.230.0030.00316.99
8.0.220.0000.00816.77
8.0.210.0030.00316.83
8.0.200.0000.00616.98
8.0.190.0000.00816.95
8.0.180.0030.00516.82
8.0.170.0040.00416.91
8.0.160.0070.00016.90
8.0.150.0040.00416.73
8.0.140.0030.00616.83
8.0.130.0000.00513.35
8.0.120.0040.00416.75
8.0.110.0040.00416.84
8.0.100.0070.00016.93
8.0.90.0060.00317.00
8.0.80.0150.00016.80
8.0.70.0070.00016.77
8.0.60.0000.00816.94
8.0.50.0040.00416.69
8.0.30.0090.01017.12
8.0.20.0110.00817.40
8.0.10.0040.00416.98
8.0.00.0080.01016.76
7.4.330.0050.00016.71
7.4.320.0070.00016.58
7.4.300.0000.00616.57
7.4.290.0030.00316.61
7.4.280.0000.00916.64
7.4.270.0040.00416.40
7.4.260.0000.00716.58
7.4.250.0030.00516.54
7.4.240.0030.00316.55
7.4.230.0070.00016.66
7.4.220.0060.00916.54
7.4.210.0050.00916.51
7.4.200.0050.00216.63
7.4.160.0110.00716.50
7.4.150.0110.00817.40
7.4.140.0090.00917.86
7.4.130.0150.00616.51
7.4.120.0110.00616.40
7.4.110.0150.00916.60
7.4.100.0130.00916.35
7.4.90.0110.00716.45
7.4.80.0100.00719.39
7.4.70.0100.00616.37
7.4.60.0100.00716.55
7.4.50.0040.01016.54
7.4.40.0060.01216.50
7.4.30.0170.00316.51
7.4.00.0070.00714.70
7.3.330.0040.00413.16
7.3.320.0030.00213.06
7.3.310.0000.00716.19
7.3.300.0070.00016.31
7.3.290.0040.00416.35
7.3.280.0120.00616.34
7.3.270.0030.01617.40
7.3.260.0140.00616.41
7.3.250.0140.00616.29
7.3.240.0100.00616.43
7.3.230.0090.00916.43
7.3.210.0090.00816.37
7.3.200.0120.00416.40
7.3.190.0090.00916.21
7.3.180.0040.01216.21
7.3.170.0120.00616.29
7.3.160.0140.00716.28
7.3.10.0100.00316.57
7.3.00.0030.00616.36
7.2.330.0160.00416.31
7.2.320.0060.01216.39
7.2.310.0070.01116.71
7.2.300.0130.01016.57
7.2.290.0060.01216.70
7.2.130.0070.00716.61
7.2.120.0000.01016.90
7.2.110.0070.00716.91
7.2.100.0120.00316.84
7.2.90.0110.00417.07
7.2.80.0070.01117.02
7.2.70.0030.01316.59
7.2.60.0050.01316.90
7.2.50.0070.00816.73
7.2.40.0150.00617.00
7.2.30.0100.01016.88
7.2.20.0140.00016.98
7.2.10.0030.01216.61
7.2.00.0030.00918.11
7.1.250.0100.00315.65
7.1.200.0030.00715.75
7.1.100.0080.00018.18
7.1.70.0000.00917.29
7.1.60.0100.01419.44
7.1.50.0100.01416.70
7.1.00.0070.06322.43
7.0.200.0070.00716.87
7.0.60.0070.07320.02
7.0.50.0030.04717.89
7.0.40.0130.08020.03
7.0.30.0200.06720.16
7.0.20.0500.06020.28
7.0.10.0130.08020.23
7.0.00.0030.04320.08
5.6.280.0030.03021.15
5.6.210.0100.03320.48
5.6.200.0030.06718.20
5.6.190.0070.05720.35
5.6.180.0200.07020.48
5.6.170.0330.07320.41
5.6.160.0070.05020.50
5.6.150.0030.04318.17
5.6.140.0030.08718.21
5.6.130.0030.06018.17
5.6.120.0100.04020.97
5.6.110.0030.04020.96
5.6.100.0130.07720.99
5.6.90.0030.09021.09
5.6.80.0130.07320.48
5.5.350.0170.07720.42
5.5.340.0070.04018.02
5.5.330.0100.07320.23
5.5.320.0300.07720.20
5.5.310.0400.06320.27
5.5.300.0100.06718.00
5.5.290.0070.05717.88
5.5.280.0170.07020.77
5.5.270.0230.06320.68
5.5.260.0100.08020.95
5.5.250.0070.08020.57
5.5.240.0300.06720.23

preferences:
42.46 ms | 403 KiB | 5 Q