3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 'Foo', 'bAr' => 'BaR', 'suB' => [ 'a' => 1, 2 => 'b', 'C' => null, ], 'obj' => (object) [ 'd' => 1.333, 'SubArR' => [ 'This' => 'Is', 'a' => 'challenge', ] ] ]; function recursiveWalker(array|object &$level, callable $callback) { foreach ($level as &$v) { switch (gettype($v)) { case 'string' : $v = $callback($v); break; case 'array' : case 'object' : (__FUNCTION__)($v, $callback); } } } recursiveWalker($array, 'strtolower'); var_export($array);

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)
8.4.130.0110.01017.71
8.4.120.0120.00820.51
8.4.110.0130.00718.70
8.4.100.0060.00418.68
8.4.90.0050.00320.54
8.4.80.0120.00720.61
8.4.70.0090.01118.82
8.4.60.0110.00919.16
8.4.50.0140.00717.91
8.4.40.0040.01517.84
8.4.30.0070.01118.60
8.4.20.0060.01321.06
8.4.10.0060.00319.60
8.3.260.0110.00916.60
8.3.250.0120.00618.95
8.3.240.0140.00716.75
8.3.230.0070.00116.82
8.3.220.0050.00318.88
8.3.210.0060.00116.64
8.3.200.0060.00416.46
8.3.190.0110.00817.32
8.3.180.0110.00817.38
8.3.170.0030.01420.58
8.3.160.0090.00918.45
8.3.150.0060.01217.03
8.3.140.0110.00716.78
8.3.130.0060.00316.80
8.3.120.0060.00320.65
8.3.110.0000.00918.66
8.3.100.0000.00818.54
8.3.90.0040.01416.70
8.3.80.0420.00630.84
8.3.70.0290.01830.84
8.3.60.0410.00630.84
8.3.50.0150.00330.84
8.3.40.0330.00330.84
8.3.30.0340.00630.84
8.3.20.0280.00730.84
8.3.10.0230.00830.84
8.3.00.0320.00930.84
8.2.290.0040.00520.34
8.2.280.0100.00418.70
8.2.270.0070.01117.18
8.2.260.0110.00718.40
8.2.250.0090.00016.66
8.2.240.0070.01116.98
8.2.230.0050.00320.94
8.2.220.0040.00424.06
8.2.210.0040.00426.77
8.2.200.0410.00030.84
8.2.190.0330.01030.84
8.2.180.0250.01530.84
8.2.170.0430.00030.84
8.2.160.0260.01630.84
8.2.150.0250.01230.84
8.2.140.0180.00430.84
8.2.130.0180.00330.84
8.2.120.0190.00030.84
8.2.110.0160.00330.84
8.2.100.0170.00230.84
8.2.90.0220.00830.84
8.2.80.0190.01130.84
8.2.70.0290.00030.84
8.2.60.0300.00430.84
8.2.50.0380.00330.84
8.2.40.0340.00430.84
8.2.30.0290.01130.84
8.2.20.0330.00630.84
8.2.10.0220.01230.84
8.2.00.0220.01530.84
8.1.330.0060.01122.16
8.1.320.0080.00718.12
8.1.310.0030.01418.52
8.1.300.0070.00718.60
8.1.290.0270.01830.84
8.1.280.0410.00430.84
8.1.270.0390.00430.84
8.1.260.0390.00330.84
8.1.250.0360.00730.84
8.1.240.0270.00430.84
8.1.230.0490.00730.84
8.1.220.0470.00730.84
8.1.210.0320.00430.84
8.1.200.0370.00630.84
8.1.190.0310.00330.84
8.1.180.0390.00430.84
8.1.170.0270.01030.84
8.1.160.0330.00430.84
8.1.150.0180.00030.84
8.1.140.0100.01630.84
8.1.130.0140.00730.84
8.1.120.0140.00330.84
8.1.110.0290.00730.84
8.1.100.0300.00830.84
8.1.90.0250.01830.84
8.1.80.0340.00730.84
8.1.70.0300.01130.84
8.1.60.0240.01830.84
8.1.50.0380.00330.84
8.1.40.0320.00930.84
8.1.30.0370.00430.84
8.1.20.0250.01630.84
8.1.10.0380.00730.84
8.1.00.0310.01130.84

preferences:
48.89 ms | 403 KiB | 5 Q