3v4l.org

run code in 300+ PHP versions simultaneously
<?php $i = 0; $data = [ 'a' => null, 'b' => null, 'c' => null, 'd' => null, 'e' => null ]; foreach ($data as &$item) { $item = ++$i; } var_dump($data); foreach ($data as $key => $item) { var_dump($item); }

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)
8.3.60.0080.00818.55
8.3.50.0070.00717.81
8.3.40.0000.01518.62
8.3.30.0040.01118.57
8.3.20.0080.00020.35
8.3.10.0080.00023.35
8.3.00.0050.00319.43
8.2.180.0180.00018.48
8.2.170.0030.01422.96
8.2.160.0070.00719.36
8.2.150.0040.00424.18
8.2.140.0090.00024.66
8.2.130.0050.00222.30
8.2.120.0070.00026.35
8.2.110.0100.00020.39
8.2.100.0070.00617.72
8.2.90.0060.00317.84
8.2.80.0030.00520.59
8.2.70.0050.00318.04
8.2.60.0000.00817.93
8.2.50.0060.00318.10
8.2.40.0080.00020.48
8.2.30.0070.00419.25
8.2.20.0040.00418.09
8.2.10.0000.00818.17
8.2.00.0070.00018.37
8.1.280.0060.00925.92
8.1.270.0080.00021.95
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00423.97
8.1.230.0040.00720.83
8.1.220.0040.00417.79
8.1.210.0040.00418.77
8.1.200.0030.00717.35
8.1.190.0080.00017.35
8.1.180.0040.00418.10
8.1.170.0050.00318.50
8.1.160.0000.00818.80
8.1.150.0070.00020.26
8.1.140.0040.00417.70
8.1.130.0030.00620.84
8.1.120.0040.00417.42
8.1.110.0050.00317.43
8.1.100.0040.00417.44
8.1.90.0040.00417.49
8.1.80.0000.00717.29
8.1.70.0000.00717.47
8.1.60.0040.00417.59
8.1.50.0050.00317.39
8.1.40.0040.00417.42
8.1.30.0000.00817.66
8.1.20.0020.00517.61
8.1.10.0000.00717.52
8.1.00.0000.00717.45
8.0.300.0040.00420.10
8.0.290.0040.00416.88
8.0.280.0070.00018.43
8.0.270.0070.00017.25
8.0.260.0000.00816.72
8.0.250.0070.00016.87
8.0.240.0030.00417.02
8.0.230.0040.00416.99
8.0.220.0070.00016.77
8.0.210.0000.00716.86
8.0.200.0030.00316.95
8.0.190.0030.00516.99
8.0.180.0090.00016.87
8.0.170.0030.00616.82
8.0.160.0070.00016.91
8.0.150.0070.00016.85
8.0.140.0080.00016.79
8.0.130.0050.00013.19
8.0.120.0040.00416.86
8.0.110.0040.00416.86
8.0.100.0040.00416.95
8.0.90.0040.00416.70
8.0.80.0070.01316.87
8.0.70.0030.00516.86
8.0.60.0050.00316.81
8.0.50.0040.00416.90
8.0.30.0090.01017.21
8.0.20.0110.00917.40
8.0.10.0040.00416.98
8.0.00.0150.00716.65
7.4.330.0000.00615.55
7.4.320.0000.00616.50
7.4.300.0000.00616.55
7.4.290.0020.00516.61
7.4.280.0040.00416.55
7.4.270.0040.00416.41
7.4.260.0030.00316.48
7.4.250.0030.00316.55
7.4.240.0040.00416.59
7.4.230.0000.00716.70
7.4.220.0040.00416.68
7.4.210.0060.01116.63
7.4.200.0000.00716.50
7.4.160.0100.00916.44
7.4.150.0030.01417.40
7.4.140.0140.00517.86
7.4.130.0120.00616.43
7.4.120.0080.00916.48
7.4.110.0030.01416.23
7.4.100.0100.00716.62
7.4.90.0120.00616.52
7.4.80.0150.00319.39
7.4.70.0120.00616.44
7.4.60.0130.01016.39
7.4.50.0090.00616.55
7.4.40.0100.00616.51
7.4.00.0070.01015.04
7.3.330.0030.00313.12
7.3.320.0000.00613.00
7.3.310.0040.00416.36
7.3.300.0040.00416.14
7.3.290.0060.00316.29
7.3.280.0090.00816.28
7.3.270.0030.01517.40
7.3.260.0110.01216.26
7.3.250.0080.01116.44
7.3.240.0090.00916.32
7.3.230.0120.00616.49
7.3.210.0170.00716.28
7.3.200.0040.01216.53
7.3.190.0000.01916.66
7.3.180.0060.01016.63
7.3.170.0110.00716.28
7.3.160.0100.01316.37
7.2.330.0090.00916.33
7.2.320.0130.01016.41
7.2.310.0060.01116.57
7.2.300.0100.01116.57
7.2.290.0180.00716.71
7.2.60.0100.00017.00
7.2.20.0040.01120.05
7.2.10.0000.02019.92
7.2.00.0100.00719.96
7.1.200.0120.00415.86
7.1.140.0110.00518.89
7.1.130.0000.02018.57
7.1.120.0000.02018.71
7.1.110.0100.00518.29
7.1.100.0090.00918.17
7.1.90.0090.00918.16
7.1.80.0110.00818.08
7.1.70.0000.01717.10
7.1.60.0210.01434.80
7.1.50.0150.01134.90
7.1.40.0230.00634.38
7.1.30.0210.01434.34
7.1.20.0130.01634.46
7.1.10.0000.01416.57
7.1.00.0110.00716.59

preferences:
59.83 ms | 401 KiB | 5 Q