3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A{ public static $def = array('head'=>array('a'=>'b'),'fields'=>array('a'=>'field_a','b'=>'field_b')); } class B extends A { public static $def['fields'] = array_merge(parent::$def['fields'],array('c'=>'field_c')); } var_dump(B::$def);

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)
5.4.320.0060.03812.51
5.4.310.0070.03712.50
5.4.300.0070.03612.51
5.4.290.0090.03512.51
5.4.280.0050.03612.41
5.4.270.0030.03912.40
5.4.260.0030.04012.40
5.4.250.0040.03912.40
5.4.240.0030.03912.41
5.4.230.0040.03812.39
5.4.220.0030.03612.40
5.4.210.0060.03312.40
5.4.200.0030.03912.40
5.4.190.0050.03612.39
5.4.180.0050.03612.39
5.4.170.0080.03312.40
5.4.160.0070.03412.40
5.4.150.0020.03912.39
5.4.140.0070.03612.08
5.4.130.0040.03712.06
5.4.120.0030.03712.03
5.4.110.0050.03512.03
5.4.100.0060.03412.03
5.4.90.0090.03312.03
5.4.80.0050.03612.03
5.4.70.0050.03412.02
5.4.60.0040.03512.02
5.4.50.0080.03312.02
5.4.40.0060.03512.01
5.4.30.0060.03712.01
5.4.20.0090.03112.00
5.4.10.0050.03412.01
5.4.00.0030.03811.50
5.3.290.0110.03412.80
5.3.280.0040.03912.70
5.3.270.0080.03612.73
5.3.260.0070.03712.72
5.3.250.0060.03612.72
5.3.240.0050.03712.72
5.3.230.0020.04112.71
5.3.220.0060.03612.68
5.3.210.0070.03712.68
5.3.200.0040.03712.68
5.3.190.0070.03612.68
5.3.180.0060.03612.68
5.3.170.0050.03812.67
5.3.160.0030.03912.67
5.3.150.0070.03512.67
5.3.140.0060.03512.66
5.3.130.0050.03912.65
5.3.120.0060.03912.66
5.3.110.0060.03812.66
5.3.100.0060.03512.12
5.3.90.0060.03512.10
5.3.80.0050.03612.09
5.3.70.0040.03712.09
5.3.60.0070.03512.08
5.3.50.0090.03212.02
5.3.40.0040.03812.02
5.3.30.0080.03211.98
5.3.20.0030.03711.76
5.3.10.0080.03111.73
5.3.00.0060.03611.71
5.2.170.0070.0289.22
5.2.160.0050.0299.22
5.2.150.0070.0339.22
5.2.140.0050.0389.21
5.2.130.0050.0299.18
5.2.120.0040.0289.17
5.2.110.0060.0279.18
5.2.100.0060.0279.18
5.2.90.0040.0309.17
5.2.80.0100.0259.17
5.2.70.0050.0309.17
5.2.60.0050.0299.13
5.2.50.0060.0289.09
5.2.40.0060.0299.07
5.2.30.0030.0319.04
5.2.20.0020.0309.04
5.2.10.0040.0298.95
5.2.00.0040.0318.81
5.1.60.0040.0248.09
5.1.50.0030.0248.08
5.1.40.0040.0248.06
5.1.30.0050.0258.42
5.1.20.0060.0248.43
5.1.10.0030.0268.16
5.1.00.0060.0238.16
5.0.50.0030.0206.64
5.0.40.0020.0206.51
5.0.30.0040.0306.31
5.0.20.0020.0206.28
5.0.10.0030.0196.26
5.0.00.0040.0296.25
4.4.90.0040.0144.78
4.4.80.0030.0154.75
4.4.70.0040.0144.76
4.4.60.0020.0164.76
4.4.50.0020.0174.77
4.4.40.0040.0244.71
4.4.30.0050.0134.76
4.4.20.0010.0174.85
4.4.10.0030.0154.85
4.4.00.0030.0244.75
4.3.110.0020.0194.67
4.3.100.0030.0194.67
4.3.90.0030.0144.64
4.3.80.0030.0244.58
4.3.70.0040.0164.63
4.3.60.0020.0194.63
4.3.50.0010.0174.63
4.3.40.0020.0244.54
4.3.30.0030.0153.30
4.3.20.0020.0153.28
4.3.10.0020.0153.23
4.3.00.0000.02015.63

preferences:
143.05 ms | 1394 KiB | 7 Q