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) { $result[key($set[0])] = count($set); } var_export($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)
8.5.10.0140.00516.79
8.5.00.0130.01219.53
8.4.160.0250.01023.73
8.4.150.0020.00014.05
8.4.140.0080.01317.37
8.4.130.0150.00518.84
8.4.120.0080.00824.04
8.4.110.0140.00718.75
8.4.100.0110.01017.73
8.4.90.0070.00218.52
8.4.80.0090.01119.57
8.4.70.0050.00317.80
8.4.60.0120.01018.90
8.4.50.0060.00318.60
8.4.40.0090.00017.76
8.4.30.0050.00320.71
8.4.20.0070.01321.38
8.4.10.0430.00617.43
8.3.280.0090.01018.57
8.3.270.0130.00616.48
8.3.260.0110.00216.25
8.3.250.0110.00818.61
8.3.240.0090.01016.91
8.3.230.0130.00616.62
8.3.220.0120.00717.20
8.3.210.0140.00418.61
8.3.200.0050.00316.59
8.3.190.0070.00217.11
8.3.180.0110.00816.42
8.3.170.0040.00418.87
8.3.160.0070.01118.16
8.3.150.0110.00716.97
8.3.140.0350.01216.24
8.3.130.0320.00816.38
8.3.120.0240.01016.32
8.3.110.0270.00816.22
8.3.100.0380.00716.39
8.3.90.0290.00616.09
8.3.80.0290.01316.58
8.3.70.0320.00916.10
8.3.60.0370.01016.17
8.3.50.0380.00716.35
8.3.40.0300.00917.25
8.3.30.0290.00617.30
8.3.20.0330.00717.45
8.3.10.0330.00417.39
8.3.00.0050.01617.42
8.2.290.0110.00720.30
8.2.280.0070.01020.17
8.2.270.0100.00716.71
8.2.260.0290.01016.34
8.2.250.0280.01016.39
8.2.240.0280.00916.44
8.2.230.0310.00716.57
8.2.220.0360.00316.47
8.2.210.0280.00916.46
8.2.200.0350.00316.62
8.2.190.0330.00716.48
8.2.180.0240.01416.09
8.2.170.0500.00017.68
8.2.160.0390.00017.61
8.2.150.0310.00417.41
8.2.140.0350.00417.66
8.2.130.0280.01117.54
8.2.120.0340.00717.55
8.2.110.0310.01017.66
8.2.100.0320.00717.46
8.2.90.0290.01017.31
8.2.80.0340.00417.38
8.2.70.0350.00417.25
8.2.60.0300.00917.47
8.2.50.0370.00317.25
8.2.40.0390.00417.40
8.2.30.0340.00517.43
8.2.20.0330.00617.63
8.2.10.0280.00717.41
8.2.00.0230.00717.35
8.1.320.0080.01016.14

preferences:
16.83 ms | 403 KiB | 5 Q