3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ [ ["2011-11-18 00:00:00" => 'C'], ["2011-11-18 00:00:00" => 'I'], ["2011-11-18 00:00:00" => 'S'], ], [ ["2011-11-22 00:00:00" => 'C'], ["2011-11-22 00:00:00" => 'S'] ] ]; $result = []; foreach ($array as $set) { foreach ($set as $row) { foreach ($row as $k => $_) { $result[$k] = ($result[$k] ?? 0) + 1; } } } 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)
8.5.30.0100.00619.48
8.5.20.0070.01020.08
8.5.10.0130.00716.77
8.5.00.0170.00919.84
8.4.180.0070.00319.74
8.4.170.0100.01023.88
8.4.160.0140.01022.31
8.4.150.0060.00616.93
8.4.140.0110.01117.39
8.4.130.0080.00219.51
8.4.120.0120.00820.40
8.4.110.0110.00922.33
8.4.100.0110.01017.79
8.4.90.0050.00420.69
8.4.80.0070.00217.84
8.4.70.0100.01017.69
8.4.60.0060.00320.25
8.4.50.0070.00218.65
8.4.40.0040.00417.87
8.4.30.0040.01518.84
8.4.20.0100.01021.34
8.4.10.0400.01016.99
8.3.300.0120.00918.44
8.3.290.0130.00720.79
8.3.280.0020.00718.63
8.3.270.0100.01316.50
8.3.260.0100.01016.67
8.3.250.0030.00519.02
8.3.240.0150.00316.36
8.3.230.0100.00916.48
8.3.220.0100.00917.21
8.3.210.0150.00616.73
8.3.200.0040.00516.55
8.3.190.0070.01018.87
8.3.180.0090.01116.63
8.3.170.0110.00717.29
8.3.160.0030.00520.23
8.3.150.0120.00617.27
8.3.140.0430.00316.27
8.3.130.0420.00016.51
8.3.120.0320.00916.46
8.3.110.0350.00316.32
8.3.100.0320.00416.48
8.3.90.0300.00616.21
8.3.80.0260.00416.30
8.3.70.0180.00316.29
8.3.60.0150.01216.31
8.3.50.0280.01116.17
8.3.40.0420.00517.26
8.3.30.0320.00417.37
8.3.20.0230.00817.30
8.3.10.0250.00317.22
8.3.00.0150.00317.41
8.2.300.0120.00818.05
8.2.290.0110.01020.29
8.2.280.0070.00718.30
8.2.270.0090.00618.83
8.2.260.0260.01016.37
8.2.250.0300.00716.50
8.2.240.0240.01216.23
8.2.230.0290.01016.36
8.2.220.0320.00616.50
8.2.210.0300.00816.43
8.2.200.0250.01116.45
8.2.190.0260.01116.66
8.2.180.0250.01116.38
8.2.170.0380.00317.57
8.2.160.0370.00017.57
8.2.150.0320.01017.50
8.2.140.0300.01017.22
8.2.130.0340.00717.47
8.2.120.0350.00017.38
8.2.110.0420.00417.58
8.2.100.0350.00717.54
8.2.90.0350.00417.70
8.2.80.0390.00017.37
8.2.70.0230.01517.59
8.2.60.0380.00317.61
8.2.50.0340.00717.60
8.2.40.0370.00017.34
8.2.30.0290.00917.30
8.2.20.0370.00017.43
8.2.10.0130.00317.45
8.2.00.0240.01417.39
8.1.340.0100.01017.57
8.1.320.0080.01117.90

preferences:
36.24 ms | 850 KiB | 5 Q