3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $a = $this; } var_dump(new A());

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)
5.4.320.0060.03512.51
5.4.310.0050.03912.50
5.4.300.0090.03412.51
5.4.290.0060.03712.50
5.4.280.0060.03512.40
5.4.270.0080.03312.40
5.4.260.0080.03512.40
5.4.250.0020.04012.40
5.4.240.0050.03612.40
5.4.230.0040.03812.39
5.4.220.0050.03612.39
5.4.210.0060.03512.39
5.4.200.0070.03712.39
5.4.190.0100.03412.39
5.4.180.0010.04112.39
5.4.170.0040.03712.40
5.4.160.0060.03612.39
5.4.150.0060.03412.39
5.4.140.0050.03612.08
5.4.130.0040.03612.06
5.4.120.0050.03512.03
5.4.110.0060.03412.02
5.4.100.0030.03612.02
5.4.90.0040.03712.02
5.4.80.0040.03812.02
5.4.70.0050.03512.02
5.4.60.0060.03812.02
5.4.50.0020.04612.02
5.4.40.0050.03412.01
5.4.30.0040.03612.00
5.4.20.0040.03612.00
5.4.10.0060.03412.00
5.4.00.0070.03411.50
5.3.290.0080.03612.80
5.3.280.0030.04212.71
5.3.270.0090.03712.72
5.3.260.0070.04112.72
5.3.250.0080.03612.72
5.3.240.0040.03912.72
5.3.230.0100.03712.71
5.3.220.0050.03812.68
5.3.210.0060.03812.68
5.3.200.0070.03512.68
5.3.190.0050.04412.68
5.3.180.0020.03912.67
5.3.170.0050.04412.67
5.3.160.0060.03512.68
5.3.150.0070.05112.67
5.3.140.0050.03812.66
5.3.130.0090.03612.66
5.3.120.0050.03912.65
5.3.110.0050.04112.65
5.3.100.0050.03812.12
5.3.90.0060.03612.10
5.3.80.0040.03712.09
5.3.70.0100.04412.09
5.3.60.0060.04212.08
5.3.50.0030.03812.02
5.3.40.0040.03812.02
5.3.30.0070.03411.98
5.3.20.0060.03911.76
5.3.10.0070.03611.73
5.3.00.0090.04911.71
5.2.170.0050.0449.21
5.2.160.0040.0319.21
5.2.150.0030.0329.21
5.2.140.0070.0399.21
5.2.130.0050.0289.16
5.2.120.0040.0299.17
5.2.110.0070.0299.18
5.2.100.0080.0259.18
5.2.90.0050.0289.18
5.2.80.0050.0299.17
5.2.70.0050.0309.17
5.2.60.0060.0379.13
5.2.50.0070.0299.09
5.2.40.0030.0359.07
5.2.30.0100.0359.04
5.2.20.0060.0289.04
5.2.10.0050.0278.94
5.2.00.0050.0328.80
5.1.60.0050.0248.09
5.1.50.0040.0268.08
5.1.40.0030.0268.06
5.1.30.0020.0288.41
5.1.20.0060.0248.43
5.1.10.0030.0278.16
5.1.00.0050.0308.16
5.0.50.0040.0246.64
5.0.40.0060.0236.49
5.0.30.0030.0346.31
5.0.20.0040.0256.27
5.0.10.0040.0226.26
5.0.00.0040.0296.25
4.4.90.0030.0164.78
4.4.80.0050.0174.76
4.4.70.0020.0164.76
4.4.60.0030.0194.75
4.4.50.0020.0164.77
4.4.40.0050.0244.71
4.4.30.0040.0164.76
4.4.20.0020.0174.84
4.4.10.0050.0124.85
4.4.00.0050.0244.76
4.3.110.0010.0244.67
4.3.100.0000.0174.67
4.3.90.0020.0174.63
4.3.80.0030.0244.58
4.3.70.0040.0134.63
4.3.60.0030.0204.63
4.3.50.0040.0144.63
4.3.40.0030.0234.54
4.3.30.0020.0153.30
4.3.20.0040.0133.28
4.3.10.0020.0163.23
4.3.00.0200.0177.21

preferences:
140.64 ms | 1394 KiB | 7 Q