3v4l.org

run code in 300+ PHP versions simultaneously
<?php $lists = [ ['A', 'B', 'C', 'D', 'E'], ['A', 'B', 'C', 'D'], ['A', 'B', 'C', 'D', 'E', 'F'], ]; foreach ($lists as &$row) { $newRow = []; foreach ($row as $i => $v) { $newRow['Key' . $i + 1] = $v; } $row = $newRow; } var_export($lists);

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)
8.4.120.0140.00720.84
8.4.110.0090.01122.68
8.4.100.0070.00317.81
8.4.90.0060.00418.80
8.4.80.0130.00617.80
8.4.70.0100.00717.84
8.4.60.0120.00818.65
8.4.50.0100.01120.40
8.4.40.0150.00418.77
8.4.30.0100.01018.49
8.4.20.0100.01019.51
8.4.10.0120.00419.59
8.3.250.0160.00318.64
8.3.240.0140.00516.42
8.3.230.0090.01116.70
8.3.220.0110.00718.98
8.3.210.0080.00918.34
8.3.200.0070.00316.47
8.3.190.0140.00516.98
8.3.180.0110.00716.43
8.3.170.0120.00618.70
8.3.160.0180.00016.50
8.3.150.0030.00616.54
8.3.140.0080.00016.53
8.3.130.0080.00018.36
8.3.120.0000.00818.76
8.3.110.0070.00420.94
8.3.100.0070.00424.06
8.3.90.0000.01526.77
8.3.80.0070.00717.97
8.3.70.0100.01016.22
8.3.60.0160.00618.18
8.3.50.0100.00716.64
8.3.40.0090.00622.08
8.3.30.0130.00721.74
8.3.20.0040.00424.18
8.3.10.0040.00424.66
8.3.00.0040.00426.16
8.2.290.0100.01020.41
8.2.280.0050.00318.30
8.2.270.0130.00317.05
8.2.260.0110.00820.09
8.2.250.0060.00316.84
8.2.240.0130.00317.29
8.2.230.0040.00422.58
8.2.220.0060.00337.54
8.2.210.0050.00326.77
8.2.200.0070.00316.38
8.2.190.0070.00718.31
8.2.180.0120.00316.32
8.2.170.0120.00322.96
8.2.160.0070.00722.96
8.2.150.0000.00825.66
8.2.140.0000.00924.66
8.2.130.0080.00026.16
8.2.120.0040.00420.97
8.2.110.0100.01020.35
8.2.100.0070.01419.39
8.2.90.0260.00718.91
8.2.80.0210.00718.85
8.2.70.0210.00618.58
8.2.60.0080.00818.84
8.2.50.0130.00318.75
8.2.40.0030.01118.86
8.2.30.0110.00318.69
8.2.20.0090.00418.88
8.2.10.0110.00419.16
8.2.00.0240.00719.06
8.1.330.0050.01321.86
8.1.320.0090.00716.20
8.1.310.0040.00416.87
8.1.300.0090.00017.81
8.1.290.0030.00630.84
8.1.280.0040.01825.92
8.1.270.0040.00423.99
8.1.260.0030.00626.35
8.1.250.0000.00828.09
8.1.240.0050.00918.67
8.1.230.0120.00318.49
8.1.220.0190.01018.74
8.1.210.0140.01019.89
8.1.200.0090.00618.69
8.1.190.0160.00018.38
8.1.180.0130.00318.55
8.1.170.0110.00318.43
8.1.160.0110.01118.67
8.1.150.0100.00220.46
8.1.140.0110.00318.34
8.1.130.0080.00518.56
8.1.120.0080.00418.53
8.1.110.0170.00718.51
8.1.100.0110.00418.50
8.1.90.0140.00018.54
8.1.80.0180.01118.52
8.1.70.0190.00618.62
8.1.60.0270.01018.29
8.1.50.0180.00418.54
8.1.40.0100.00218.88
8.1.30.0160.00618.74
8.1.20.0170.01018.66
8.1.10.0160.00318.70
8.1.00.0110.00318.49
8.0.300.0090.00617.76
8.0.290.0100.00617.72
8.0.280.0130.00017.77
8.0.270.0100.00717.81
8.0.260.0110.00218.14
8.0.250.0110.00417.84
8.0.240.0140.00017.88
8.0.230.0220.00318.11
8.0.220.0130.00317.89
8.0.210.0140.00017.94
8.0.200.0130.01017.82
8.0.190.0270.00018.46
8.0.180.0110.00317.92
8.0.170.0230.00317.84
8.0.160.0110.00417.91
8.0.150.0170.00317.60
8.0.140.0080.00817.77
8.0.130.0220.00418.20
8.0.120.0100.00517.88
8.0.110.0100.00317.96
8.0.100.0220.00417.89
8.0.90.0170.00317.79
8.0.80.0150.00017.95
8.0.70.0080.00817.74
8.0.60.0030.01018.07
8.0.50.0110.00417.70
8.0.30.0070.00718.33
8.0.20.0090.00617.83
8.0.10.0290.00318.11

preferences:
28.33 ms | 403 KiB | 5 Q