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] = $k; } } foreach ($result as $key => &$val) { $result[$map[$key]] = $key; if ($main == $result) { break; } } var_export($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)
8.4.120.0140.00524.11
8.4.110.0080.01222.45
8.4.100.0110.01018.72
8.4.90.0070.00219.03
8.4.80.0040.00520.64
8.4.70.0080.00617.67
8.4.60.0150.00618.79
8.4.50.0120.00920.30
8.4.40.0080.00017.91
8.4.30.0030.01619.00
8.4.20.0110.00419.47
8.4.10.0000.00819.63
8.3.250.0150.00318.95
8.3.240.0120.00717.29
8.3.230.0120.00716.49
8.3.220.0090.00919.05
8.3.210.0070.00816.58
8.3.200.0030.00516.48
8.3.190.0090.01117.05
8.3.180.0080.00516.97
8.3.170.0040.01120.66
8.3.160.0030.00517.27
8.3.150.0030.01517.23
8.3.140.0040.00418.91
8.3.130.0090.00018.52
8.3.120.0060.00319.05
8.3.110.0100.00020.94
8.3.100.0030.00618.44
8.3.90.0000.00826.77
8.3.80.0030.00618.56
8.3.70.0040.01216.38
8.3.60.0110.00718.31
8.3.50.0040.01116.32
8.3.40.0150.00621.42
8.3.30.0140.00720.84
8.3.20.0160.00323.66
8.3.10.0070.01323.62
8.3.00.0120.00920.72
8.2.290.0100.00720.34
8.2.280.0060.01318.53
8.2.270.0070.01116.95
8.2.260.0060.00318.16
8.2.250.0000.01518.30
8.2.240.0060.00319.16
8.2.230.0060.00322.58
8.2.220.0050.00524.06
8.2.210.0050.00326.77
8.2.200.0060.00318.54
8.2.190.0150.00018.30
8.2.180.0150.00616.88
8.2.170.0070.01420.81
8.2.160.0070.01421.78
8.2.150.0030.01721.02
8.2.140.0130.00720.35
8.2.130.0090.00920.39
8.2.120.0150.00319.39
8.2.110.0070.01118.99
8.2.100.0120.00619.27
8.2.90.0100.01018.70
8.2.80.0130.00719.40
8.2.70.0120.00418.80
8.2.60.0090.00619.06
8.2.50.0140.00718.98
8.2.40.0100.01018.95
8.2.30.0160.00018.65
8.2.20.0150.00418.66
8.2.10.0100.01018.71
8.2.00.0090.00918.79
8.1.330.0120.00721.99
8.1.320.0130.00516.41
8.1.310.0080.00818.48
8.1.300.0000.00917.71
8.1.290.0040.00430.84
8.1.280.0120.00925.92
8.1.270.0040.01422.09
8.1.260.0150.00322.00
8.1.250.0070.01122.10
8.1.240.0170.00318.59
8.1.230.0140.00718.63
8.1.220.0040.01218.94
8.1.210.0070.01418.60
8.1.200.0120.00918.82
8.1.190.0000.01518.75
8.1.180.0140.00718.51
8.1.170.0090.01218.72
8.1.160.0100.01018.57
8.1.150.0080.01118.69
8.1.140.0100.00618.81
8.1.130.0070.01118.74
8.1.120.0160.00318.50
8.1.110.0070.00718.68
8.1.100.0110.00419.86
8.1.90.0120.00418.63
8.1.80.0150.00319.77
8.1.70.0130.00318.74
8.1.60.0080.00818.66
8.1.50.0120.00620.29
8.1.40.0070.01020.52
8.1.30.0110.00420.64
8.1.20.0060.00921.58
8.1.10.0110.00420.47
8.1.00.0120.00320.45

preferences:
31.62 ms | 403 KiB | 5 Q