3v4l.org

run code in 300+ PHP versions simultaneously
<?php function a() { echo "called\n"; return 'aaa'; } class A {} isset(strlen($a)); isset($a); isset($a[0]); isset(A::$x); isset($a->found);

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)
5.4.350.0130.03112.02
5.4.340.0110.03612.02
5.4.320.0070.04112.52
5.4.310.0070.04012.51
5.4.300.0060.03812.51
5.4.290.0090.04612.51
5.4.280.0080.03812.40
5.4.270.0070.04012.40
5.4.260.0100.04212.40
5.4.250.0050.04612.41
5.4.240.0050.04512.40
5.4.230.0050.03812.40
5.4.220.0060.03812.40
5.4.210.0080.03612.40
5.4.200.0060.03912.40
5.4.190.0070.03912.39
5.4.180.0100.03612.39
5.4.170.0100.03912.40
5.4.160.0070.04512.40
5.4.150.0090.03912.39
5.4.140.0090.04112.08
5.4.130.0080.03912.06
5.4.120.0050.03912.02
5.4.110.0060.03812.02
5.4.100.0100.03412.02
5.4.90.0080.03612.02
5.4.80.0110.04112.02
5.4.70.0100.03812.01
5.4.60.0070.04112.01
5.4.50.0100.04012.02
5.4.40.0090.03812.00
5.4.30.0080.03812.00
5.4.20.0090.03912.00
5.4.10.0100.04012.00
5.4.00.0110.04311.49
5.3.290.0090.04512.80
5.3.280.0120.04212.71
5.3.270.0080.05312.72
5.3.260.0130.05612.72
5.3.250.0070.04612.72
5.3.240.0110.04212.72
5.3.230.0100.04712.71
5.3.220.0130.05612.68
5.3.210.0120.04812.68
5.3.200.0090.04712.68
5.3.190.0100.05512.68
5.3.180.0090.04612.67
5.3.170.0100.04012.67
5.3.160.0090.04112.67
5.3.150.0040.04512.67
5.3.140.0100.04412.66
5.3.130.0080.06112.66
5.3.120.0110.03712.65
5.3.110.0070.03912.66
5.3.100.0090.04512.12
5.3.90.0080.04512.10
5.3.80.0060.04312.09
5.3.70.0070.03812.09
5.3.60.0070.03912.07
5.3.50.0070.03912.02
5.3.40.0070.03812.02
5.3.30.0090.03511.98
5.3.20.0090.03511.77
5.3.10.0100.03911.73
5.3.00.0090.04111.71
5.2.170.0040.0329.22
5.2.160.0070.0329.22
5.2.150.0090.0279.21
5.2.140.0050.0339.21
5.2.130.0070.0319.17
5.2.120.0090.0329.17
5.2.110.0080.0319.18
5.2.100.0090.0289.18
5.2.90.0060.0299.17
5.2.80.0020.0359.17
5.2.70.0070.0309.17
5.2.60.0050.0309.13
5.2.50.0060.0329.09
5.2.40.0070.0279.07
5.2.30.0070.0299.04
5.2.20.0050.0369.04
5.2.10.0020.0328.94
5.2.00.0050.0338.80
5.1.60.0040.0268.08
5.1.50.0050.0308.08
5.1.40.0040.0308.07
5.1.30.0050.0298.42
5.1.20.0070.0298.44
5.1.10.0050.0278.16
5.1.00.0050.0268.16
5.0.50.0040.0216.64
5.0.40.0030.0236.50
5.0.30.0050.0326.31
5.0.20.0040.0216.28
5.0.10.0050.0246.25
5.0.00.0070.0436.25
4.4.90.0040.0194.78
4.4.80.0040.0154.75
4.4.70.0040.0164.75
4.4.60.0050.0144.76
4.4.50.0020.0164.77
4.4.40.0040.0244.71
4.4.30.0020.0164.76
4.4.20.0050.0234.85
4.4.10.0040.0194.85
4.4.00.0020.0344.76
4.3.110.0070.0194.67
4.3.100.0020.0204.67
4.3.90.0030.0324.63
4.3.80.0070.0384.58
4.3.70.0020.0254.63
4.3.60.0050.0154.63
4.3.50.0040.0184.63
4.3.40.0050.0264.54
4.3.30.0020.0193.77
4.3.20.0020.0213.76
4.3.10.0040.0163.73
4.3.00.0030.0238.35

preferences:
141.3 ms | 1394 KiB | 7 Q