3v4l.org

run code in 300+ PHP versions simultaneously
<?php Class X { public $names = array('bob', 'fred'); } Class Y extends X { public $names = array('alice');//array_merge(parent::names, array('alice')); function __construct() { var_dump(parent->$names); } } $x = new X(); var_dump($x->names); $y = new Y(); var_dump($y->names);

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)
8.3.60.0030.01018.43
8.3.50.0060.01021.91
8.3.40.0100.01018.92
8.3.30.0110.00418.92
8.3.20.0040.00420.21
8.3.10.0000.00823.71
8.3.00.0070.00317.91
8.2.180.0080.00816.50
8.2.170.0070.00722.96
8.2.160.0030.01320.30
8.2.150.0000.00824.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0060.00321.03
8.2.110.0140.00722.06
8.2.100.0040.00418.86
8.1.280.0040.01125.92
8.1.270.0060.00323.86
8.1.260.0060.00326.35
8.1.250.0070.00028.09
8.1.240.0000.01018.61
8.1.230.0030.00718.36
5.4.310.0040.04012.51
5.4.300.0070.03712.51
5.4.290.0060.03812.51
5.4.280.0030.03712.41
5.4.270.0050.03712.41
5.4.260.0060.03712.41
5.4.250.0090.03412.41
5.4.240.0050.03712.41
5.4.230.0070.03612.40
5.4.220.0060.03512.40
5.4.210.0070.03412.40
5.4.200.0080.03512.40
5.4.190.0050.03912.39
5.4.180.0070.03412.40
5.4.170.0050.03712.41
5.4.160.0040.03712.40
5.4.150.0030.03812.39
5.4.140.0070.03612.09
5.4.130.0080.03312.07
5.4.120.0040.04212.03
5.4.110.0060.03412.03
5.4.100.0060.03512.03
5.4.90.0040.04112.04
5.4.80.0060.04012.03
5.4.70.0050.03512.03
5.4.60.0060.03412.03
5.4.50.0080.03312.02
5.4.40.0040.03612.02
5.4.30.0050.03512.01
5.4.20.0080.04012.01
5.4.10.0070.03512.01
5.4.00.0100.04311.50
5.3.280.0070.04712.71
5.3.270.0040.04612.73
5.3.260.0040.04012.72
5.3.250.0060.03612.72
5.3.240.0090.03412.72
5.3.230.0050.03812.70
5.3.220.0100.03312.68
5.3.210.0120.03312.68
5.3.200.0080.03412.68
5.3.190.0070.03612.68
5.3.180.0070.03712.67
5.3.170.0090.03312.67
5.3.160.0090.03612.68
5.3.150.0080.03812.67
5.3.140.0080.03612.66
5.3.130.0050.04112.66
5.3.120.0070.03912.66
5.3.110.0050.04012.66
5.3.100.0040.04012.13
5.3.90.0100.03312.11
5.3.80.0060.03612.09
5.3.70.0050.03712.09
5.3.60.0060.03512.08
5.3.50.0050.03612.02
5.3.40.0050.03812.03
5.3.30.0100.03011.99
5.3.20.0030.04411.76
5.3.10.0050.04611.73
5.3.00.0050.03611.71
5.2.170.0040.0309.22
5.2.160.0040.0299.22
5.2.150.0060.0299.22
5.2.140.0040.0319.22
5.2.130.0070.0269.18
5.2.120.0030.0299.18
5.2.110.0060.0279.19
5.2.100.0010.0319.18
5.2.90.0030.0359.18
5.2.80.0080.0409.18
5.2.70.0070.0339.18
5.2.60.0110.0289.13
5.2.50.0070.0299.10
5.2.40.0030.0309.07
5.2.30.0000.0349.05
5.2.20.0060.0379.05
5.2.10.0060.0298.96
5.2.00.0060.0278.81
5.1.60.0020.0268.09
5.1.50.0030.0258.09
5.1.40.0060.0228.07
5.1.30.0040.0258.42
5.1.20.0030.0278.44
5.1.10.0000.0308.16
5.1.00.0020.0288.16
5.0.50.0050.0196.64
5.0.40.0050.0196.50
5.0.30.0020.0356.32
5.0.20.0020.0276.29
5.0.10.0010.0296.27
5.0.00.0050.0376.26
4.4.90.0030.0184.78
4.4.80.0030.0214.75
4.4.70.0020.0184.76
4.4.60.0030.0154.75
4.4.50.0040.0144.77
4.4.40.0040.0234.71
4.4.30.0030.0154.76
4.4.20.0050.0134.84
4.4.10.0050.0134.85
4.4.00.0020.0264.76
4.3.110.0020.0174.67
4.3.100.0020.0154.66
4.3.90.0020.0154.64
4.3.80.0060.0214.58
4.3.70.0020.0174.63
4.3.60.0040.0144.63
4.3.50.0030.0154.63
4.3.40.0020.0254.54
4.3.30.0020.0163.30
4.3.20.0020.0163.28
4.3.10.0030.0153.23
4.3.00.0030.0207.18

preferences:
36.62 ms | 401 KiB | 5 Q