3v4l.org

run code in 300+ PHP versions simultaneously
<?php $myExistingArray = []; for ($i = 0; $i < 100; $i++) { $myExistingArray[] = ['key1' => '1234', 'key2' => '56', 'count' => 1]; } $myNewArray = []; foreach (array_keys($myExistingArray) as $item) { $myNewArray[$myExistingArray[$item]['key1'] . '_' . $myExistingArray[$item]['key2']] = $myExistingArray[$item]['count']; }

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)
8.3.70.0140.00318.55
8.3.60.0170.00318.55
8.3.50.0120.00721.99
8.3.40.0140.00718.67
8.3.30.0040.01118.79
8.3.20.0050.00318.94
8.3.10.0040.00421.85
8.3.00.0080.00020.82
8.2.190.0140.00416.58
8.2.180.0110.00718.41
8.2.170.0100.00722.96
8.2.160.0030.01020.43
8.2.150.0120.00324.18
8.2.140.0000.00724.66
8.2.130.0070.00026.16
8.2.120.0040.00419.77
8.2.110.0030.00620.53
8.2.100.0040.00817.59
8.2.90.0050.00319.18
8.2.80.0050.00317.97
8.2.70.0030.00617.61
8.2.60.0040.00417.93
8.2.50.0040.00418.10
8.2.40.0030.00622.15
8.2.30.0030.00519.30
8.2.20.0090.00317.75
8.2.10.0000.00918.12
8.2.00.0000.01018.11
8.1.280.0070.01425.92
8.1.270.0000.00823.64
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0000.01023.77
8.1.230.0120.00420.93
8.1.220.0000.00817.79
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0040.00417.35
8.1.180.0060.00318.10
8.1.170.0030.00618.63
8.1.160.0070.00022.17
8.1.150.0040.00418.81
8.1.140.0000.00719.49
8.1.130.0070.00317.71
8.1.120.0000.00717.41
8.1.110.0000.00917.46
8.1.100.0030.00317.45
8.1.90.0000.00717.42
8.1.80.0070.00017.48
8.1.70.0030.00317.46
8.1.60.0030.00517.59
8.1.50.0040.00417.57
8.1.40.0080.00017.57
8.1.30.0060.00317.63
8.1.20.0000.00817.55
8.1.10.0060.00317.52
8.1.00.0000.00717.41
8.0.300.0070.00018.77
8.0.290.0050.00216.63
8.0.280.0070.00018.45
8.0.270.0000.00717.14
8.0.260.0000.00817.21
8.0.250.0030.00316.96
8.0.240.0030.00516.98
8.0.230.0070.00016.87
8.0.220.0050.00216.85
8.0.210.0050.00316.79
8.0.200.0030.00316.93
8.0.190.0070.00016.93
8.0.180.0080.00316.89
8.0.170.0070.00016.90
8.0.160.0000.00816.96
8.0.150.0030.00316.75
8.0.140.0060.00316.89
8.0.130.0050.00013.36
8.0.120.0060.00316.84
8.0.110.0040.00416.91
8.0.100.0070.00016.93
8.0.90.0000.00716.81
8.0.80.0070.00716.87
8.0.70.0000.00816.84
8.0.60.0020.00516.79
8.0.50.0000.00717.01
8.0.30.0060.01217.02
8.0.20.0140.00917.40
8.0.10.0040.00416.87
8.0.00.0100.00616.91
7.4.330.0030.00315.08
7.4.320.0070.00016.55
7.4.300.0000.00616.51
7.4.290.0030.00316.63
7.4.280.0040.00416.59
7.4.270.0070.00016.52
7.4.260.0070.00316.46
7.4.250.0040.00416.61
7.4.240.0000.00716.61
7.4.230.0000.00716.47
7.4.220.0160.00616.51
7.4.210.0000.01616.53
7.4.200.0070.00016.61
7.4.160.0090.00616.40
7.4.150.0030.01417.40
7.4.140.0230.01417.86
7.4.130.0080.01016.57
7.4.120.0090.00816.44
7.4.110.0130.00316.57
7.4.100.0130.00616.42
7.4.90.0140.00316.29
7.4.80.0110.01219.39
7.4.70.0040.01216.61
7.4.60.0090.00616.59
7.4.50.0070.01016.65
7.4.40.0090.00916.41
7.4.30.0070.01016.62
7.4.00.0070.01015.06
7.3.330.0030.00313.16
7.3.320.0060.00013.16
7.3.310.0060.00316.36
7.3.300.0030.00316.31
7.3.290.0100.00416.34
7.3.280.0070.01016.33
7.3.270.0060.01517.40
7.3.260.0100.00716.59
7.3.250.0130.00716.43
7.3.240.0070.00916.38
7.3.230.0100.01316.39
7.3.210.0030.01316.31
7.3.200.0090.00616.26
7.3.190.0030.01316.46
7.3.180.0150.00716.49
7.3.170.0120.00916.20
7.3.160.0070.01016.43
7.2.330.0120.01216.40
7.2.320.0030.01316.48
7.2.310.0000.01616.69
7.2.300.0090.01016.70
7.2.290.0070.01016.88
7.2.60.0000.01716.96
7.2.00.0000.02019.33
7.1.200.0090.00615.79
7.1.70.0030.00717.28
7.1.60.0000.01319.75
7.1.00.0000.08022.35
7.0.200.0380.00314.64
7.0.90.0270.07719.97
7.0.80.0300.06319.98
7.0.70.0300.06319.94
7.0.60.0370.06019.98
7.0.50.0570.07020.39
7.0.40.0530.07320.39
7.0.30.0470.05320.38
7.0.20.0330.06720.34
7.0.10.0370.06320.33
7.0.00.0400.05320.21
5.6.240.0170.06720.69
5.6.230.0130.06020.85
5.6.220.0170.05720.77
5.6.210.0170.05320.75
5.6.200.0100.08721.02
5.6.190.0200.06021.15
5.6.180.0100.05721.23
5.6.170.0170.05321.13
5.6.160.0070.07021.23
5.6.150.0100.05721.11
5.6.140.0100.05721.14
5.6.130.0200.05321.07
5.6.120.0230.04721.20
5.6.110.0130.05321.15
5.6.100.0030.06321.09
5.6.90.0170.06021.18
5.6.80.0070.06720.49
5.6.70.0100.06320.49
5.6.60.0230.05320.59
5.6.50.0130.06020.52
5.6.40.0170.05320.59
5.6.30.0070.06320.49
5.6.20.0100.05720.47
5.6.10.0100.06720.47
5.6.00.0100.06320.42

preferences:
37.02 ms | 401 KiB | 5 Q