3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = [ 2 => (object)['title' => 'Section', 'linked' => 1], 1 => (object)['title' => 'Sub-Section', 'linked' => 1], 0 => (object)['title' => 'Sub-Sub-Section', 'linked' => null] ]; array_unshift($array); var_export($array); array_unshift($array, null); var_export($array); unset($array[0]); 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)
8.3.60.0120.00616.61
8.3.50.0040.01120.03
8.3.40.0150.00020.33
8.3.30.0140.00018.68
8.3.20.0100.00324.18
8.3.10.0040.00424.66
8.3.00.0070.00026.16
8.2.180.0090.00625.92
8.2.170.0060.00919.04
8.2.160.0040.01122.96
8.2.150.0000.00725.66
8.2.140.0040.00424.66
8.2.130.0070.00026.16
8.2.120.0030.01419.95
8.2.110.0060.00319.16
8.2.100.0090.00319.77
8.2.90.0040.00419.18
8.2.80.0050.00317.97
8.2.70.0060.00317.50
8.2.60.0030.00617.93
8.2.50.0040.00418.04
8.2.40.0050.00519.66
8.2.30.0040.00417.96
8.2.20.0020.00520.36
8.2.10.0000.00718.07
8.2.00.0060.00619.14
8.1.280.0100.00725.92
8.1.270.0080.00023.99
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0000.00822.20
8.1.230.0040.00719.55
8.1.220.0030.00517.75
8.1.210.0000.00818.77
8.1.200.0030.00617.35
8.1.190.0040.00417.35
8.1.180.0030.00618.10
8.1.170.0040.00417.62
8.1.160.0030.00519.03
8.1.150.0000.00718.59
8.1.140.0000.00717.43
8.1.130.0030.00320.50
8.1.120.0040.00417.25
8.1.110.0030.00617.40
8.1.100.0000.00717.40
8.1.90.0000.00817.39
8.1.80.0110.00417.41
8.1.70.0080.00917.34
8.1.60.0180.00417.40
8.1.50.0040.00817.49
8.1.40.0090.00317.48
8.1.30.0110.00417.63
8.1.20.0120.00017.48
8.1.10.0040.01017.30
8.1.00.0000.01117.42
8.0.300.0040.00418.77
8.0.290.0030.00516.63
8.0.280.0000.00718.41
8.0.270.0050.00216.88
8.0.260.0000.00718.45
8.0.250.0070.00016.98
8.0.240.0000.00716.96
8.0.230.0040.00416.84
8.0.220.0070.00416.81
8.0.210.0080.00416.85
8.0.200.0120.00316.85
8.0.190.0090.00616.92
8.0.180.0100.00716.89
8.0.170.0060.00916.83
8.0.160.0070.00716.90
8.0.150.0150.00016.80
8.0.140.0050.00916.91
8.0.130.0120.00416.77
8.0.120.0110.00416.79
8.0.110.0120.00216.94
8.0.100.0070.00816.85
8.0.90.0080.00916.91
8.0.80.0070.00716.82
8.0.70.0100.00516.93
8.0.60.0120.00316.77
8.0.50.0110.00316.80
8.0.30.0120.00316.95
8.0.20.0060.01117.01
8.0.10.0160.00016.97
7.4.330.0030.00315.55
7.4.320.0070.00016.59
7.4.300.0150.00316.59
7.4.290.0130.00516.52
7.4.280.0090.00816.64
7.4.270.0120.00416.42
7.4.260.0090.00916.56
7.4.250.0170.00016.46
7.4.240.0100.00516.62
7.4.230.0120.00516.60
7.4.220.0110.00316.50
7.4.210.0000.01416.44
7.4.200.0100.00316.60
7.4.190.0120.00216.68
7.4.180.0090.00516.59
7.4.160.0000.01616.59
7.4.150.0070.00816.55
7.4.140.0060.00816.46
7.4.130.0080.00616.44
7.4.120.0040.00916.36
7.4.110.0080.00016.39
7.4.100.0050.00516.54
7.4.90.0110.00316.38
7.4.80.0100.00616.31
7.4.70.0020.00916.46
7.4.60.0050.00516.48
7.4.50.0040.00616.21
7.4.40.0000.00816.42
7.4.30.0030.00316.43
7.4.20.0090.00316.39
7.4.10.0040.01116.32
7.4.00.0110.00616.39

preferences:
31.57 ms | 400 KiB | 5 Q