3v4l.org

run code in 300+ PHP versions simultaneously
<?php $main = [ 'lorem' => 'lorem', 'ipsum' => 'duis', 'sit' => 'adipiscing', 'duis' => 'sit', 'amet' => 'elit', 'consectetur' => 'lorem', 'adipiscing' => 'consectetur', 'eiusmod' => 'ipsum', 'labore' => 'eiusmod', 'dolore' => 'labore', 'magna' => 'dolore', 'aliqua' => 'amet', 'incididunt' => 'magna', 'tempor' => 'incididunt', 'sed' => 'tempor', 'elit' => 'sed', ]; foreach ($main as $k => $v) { if ($k === $v) { $result[$k] = $v; } else { $map[$v] = $k; } } $k = key($result); while (isset($map[$k])) { $result[$map[$k]] = $k; $k = $map[$k]; } var_export($result);

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)
8.4.120.0110.00920.61
8.4.110.0120.00918.77
8.4.100.0100.01117.69
8.4.90.0110.00818.10
8.4.80.0140.00619.36
8.4.70.0120.00717.92
8.4.60.0050.00518.70
8.4.50.0130.00817.82
8.4.40.0030.01317.78
8.4.30.0090.00918.63
8.4.20.0140.00719.40
8.4.10.0080.00019.27
8.3.250.0130.00519.06
8.3.240.0120.00816.48
8.3.230.0110.00716.71
8.3.220.0040.00416.86
8.3.210.0120.00416.77
8.3.200.0080.00716.72
8.3.190.0120.00916.62
8.3.180.0130.00516.84
8.3.170.0090.00920.55
8.3.160.0060.01317.35
8.3.150.0060.00917.02
8.3.140.0100.01016.65
8.3.130.0030.00618.31
8.3.120.0130.00318.95
8.3.110.0090.00020.94
8.3.100.0090.00624.06
8.3.90.0080.00026.77
8.3.80.0040.00417.97
8.3.70.0090.00618.43
8.3.60.0120.00318.39
8.3.50.0120.00916.60
8.3.40.0290.01019.59
8.3.30.0170.01018.89
8.3.20.0100.01023.71
8.3.10.0130.00623.49
8.3.00.0160.01218.91
8.2.290.0060.00318.98
8.2.280.0140.00618.35
8.2.270.0090.00017.38
8.2.260.0110.00716.45
8.2.250.0030.00618.11
8.2.240.0070.00718.80
8.2.230.0090.00022.58
8.2.220.0030.00637.54
8.2.210.0000.00826.77
8.2.200.0040.00416.38
8.2.190.0170.00316.75
8.2.180.0130.00316.88
8.2.170.0330.00018.89
8.2.160.0270.00920.09
8.2.150.0170.00719.19
8.2.140.0110.01122.11
8.2.130.0070.00722.13
8.2.120.0120.00621.12
8.2.110.0130.00321.13
8.2.100.0120.00421.00
8.2.90.0070.01020.66
8.2.80.0130.01021.00
8.2.70.0140.00420.57
8.2.60.0140.01419.02
8.2.50.0210.00318.84
8.2.40.0190.00618.91
8.2.30.0240.00318.80
8.2.20.0170.01018.63
8.2.10.0170.01018.64
8.2.00.0220.00618.89
8.1.330.0130.00616.40
8.1.320.0090.00916.30
8.1.310.0040.00418.45
8.1.300.0080.01216.06
8.1.290.0060.00330.84
8.1.280.0040.01125.92
8.1.270.0080.00823.88
8.1.260.0070.01023.68
8.1.250.0120.00323.88
8.1.240.0220.00318.59
8.1.230.0230.00318.50
8.1.220.0240.00018.88
8.1.210.0250.00318.40
8.1.200.0220.00318.72
8.1.190.0230.00318.75
8.1.180.0240.00618.42
8.1.170.0200.00318.83
8.1.160.0200.01418.39
8.1.150.0170.01418.71
8.1.140.0110.01118.81
8.1.130.0130.01018.83
8.1.120.0170.01018.54
8.1.110.0170.00718.54
8.1.100.0090.00919.64
8.1.90.0070.01818.50
8.1.80.0190.01019.68
8.1.70.0080.01618.68
8.1.60.0130.01318.73
8.1.50.0220.00718.59
8.1.40.0170.00718.76
8.1.30.0120.00320.65
8.1.20.0040.01121.77
8.1.10.0240.00020.37
8.1.00.0140.00720.38

preferences:
27.5 ms | 403 KiB | 5 Q