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', ] ]*/ ]; array_walk( $array, fn(&$v) => $v = strtolower($v) ); 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)
8.4.130.0040.00518.43
8.4.120.0090.01123.76
8.4.110.0050.00522.29
8.4.100.0050.00417.54
8.4.90.0140.00322.39
8.4.80.0090.01117.70
8.4.70.0130.00617.79
8.4.60.0090.00618.81
8.4.50.0090.01121.28
8.4.40.0060.01317.55
8.4.30.0100.01018.79
8.4.20.0090.00319.71
8.4.10.0040.00419.43
8.3.260.0050.00416.59
8.3.250.0110.00818.66
8.3.240.0030.00616.64
8.3.230.0140.00516.59
8.3.220.0100.00918.88
8.3.210.0090.01118.38
8.3.200.0070.00216.50
8.3.190.0130.00617.12
8.3.180.0070.01017.12
8.3.170.0140.00418.95
8.3.160.0120.00618.43
8.3.150.0140.00417.25
8.3.140.0060.00317.33
8.3.130.0030.00616.48
8.3.120.0030.00518.86
8.3.110.0030.00620.94
8.3.100.0040.00816.48
8.3.90.0080.00018.53
8.3.80.0390.00930.84
8.3.70.0410.00930.84
8.3.60.0390.01030.84
8.3.50.0130.00330.84
8.3.40.0270.01430.84
8.3.30.0390.00430.84
8.3.20.0420.00330.84
8.3.10.0350.00430.84
8.3.00.0350.01030.84
8.2.290.0130.00620.46
8.2.280.0040.00518.28
8.2.270.0070.01316.89
8.2.260.0080.00016.56
8.2.250.0080.00017.15
8.2.240.0080.00018.79
8.2.230.0070.00322.58
8.2.220.0060.00324.06
8.2.210.0070.00726.77
8.2.200.0350.01030.84
8.2.190.0430.00630.84
8.2.180.0290.00330.84
8.2.170.0220.00330.84
8.2.160.0160.00530.84
8.2.150.0140.00830.84
8.2.140.0160.00330.84
8.2.130.0120.00830.84
8.2.120.0290.00730.84
8.2.110.0460.00430.84
8.2.100.0300.00730.84
8.2.90.0250.01430.84
8.2.80.0330.00730.84
8.2.70.0300.01230.84
8.2.60.0340.00330.84
8.2.50.0410.00430.84
8.2.40.0310.00930.84
8.2.30.0300.00930.84
8.2.20.0250.01130.84
8.2.10.0320.00330.84
8.2.00.0330.00630.84
8.1.330.0090.00921.91
8.1.320.0090.00615.94
8.1.310.0100.00716.87
8.1.300.0030.00617.96
8.1.290.0420.01030.84
8.1.280.0340.01030.84
8.1.270.0360.01330.84
8.1.260.0310.00830.84
8.1.250.0310.00930.84
8.1.240.0190.01230.84
8.1.230.0200.02030.84
8.1.220.0330.00430.84
8.1.210.0300.00830.84
8.1.200.0260.01230.84
8.1.190.0300.00730.84
8.1.180.0260.01130.84
8.1.170.0320.00430.84
8.1.160.0290.00630.84
8.1.150.0280.01130.84
8.1.140.0500.01030.84
8.1.130.0320.00730.84
8.1.120.0330.00430.84
8.1.110.0340.00430.84
8.1.100.0270.01030.84
8.1.90.0420.00030.84
8.1.80.0390.00030.84
8.1.70.0280.00930.84
8.1.60.0280.00630.84
8.1.50.0180.00930.84
8.1.40.0330.00030.84
8.1.30.0360.00430.84
8.1.20.0380.00430.84
8.1.10.0450.00330.84
8.1.00.0480.00330.84

preferences:
28.16 ms | 403 KiB | 5 Q