3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace u{ class c2{function c2() { echo 'constructor'; }}; } namespace { class c1{function c1() { echo 'constructor'; }}; } $x = new c1; $y = new u\c2;

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)
5.4.340.0120.03612.02
5.4.320.0110.04612.51
5.4.310.0060.04512.51
5.4.300.0120.03912.51
5.4.290.0080.04112.51
5.4.280.0040.03912.41
5.4.270.0120.03412.40
5.4.260.0110.04312.40
5.4.250.0050.04712.40
5.4.240.0100.04312.41
5.4.230.0040.04512.40
5.4.220.0100.04212.40
5.4.210.0060.04812.40
5.4.200.0050.04012.39
5.4.190.0080.03712.39
5.4.180.0060.04012.39
5.4.170.0050.03712.40
5.4.160.0060.03612.40
5.4.150.0060.03612.39
5.4.140.0090.03812.08
5.4.130.0140.03212.07
5.4.120.0030.03712.03
5.4.110.0060.04712.02
5.4.100.0040.04012.02
5.4.90.0040.04112.03
5.4.80.0050.03812.02
5.4.70.0060.03812.02
5.4.60.0050.03512.02
5.4.50.0100.03312.02
5.4.40.0070.03412.00
5.4.30.0120.05112.00
5.4.20.0070.04312.00
5.4.10.0070.03512.00
5.4.00.0100.04311.50
5.3.290.0080.04112.80
5.3.280.0050.03812.71
5.3.270.0070.04312.72
5.3.260.0060.04012.71
5.3.250.0080.04012.71
5.3.240.0090.03712.72
5.3.230.0090.04712.71
5.3.220.0040.03812.68
5.3.210.0040.04012.68
5.3.200.0060.03812.68
5.3.190.0080.03512.68
5.3.180.0070.03512.68
5.3.170.0070.03612.67
5.3.160.0080.04012.68
5.3.150.0070.04512.67
5.3.140.0080.04112.66
5.3.130.0070.04512.66
5.3.120.0080.03912.66
5.3.110.0050.04012.66
5.3.100.0060.03712.12
5.3.90.0070.03612.10
5.3.80.0060.03712.10
5.3.70.0070.03712.10
5.3.60.0090.04412.08
5.3.50.0040.03812.03
5.3.40.0070.04112.03
5.3.30.0070.03811.99
5.3.20.0100.03611.77
5.3.10.0070.03711.73
5.3.00.0060.04111.73
5.2.170.0060.0309.18
5.2.160.0050.0299.18
5.2.150.0060.0309.18
5.2.140.0050.0329.18
5.2.130.0040.0309.14
5.2.120.0050.0289.14
5.2.110.0050.0299.14
5.2.100.0060.0279.14
5.2.90.0060.0299.14
5.2.80.0040.0409.14
5.2.70.0050.0319.14
5.2.60.0090.0369.09
5.2.50.0090.0299.06
5.2.40.0090.0349.04
5.2.30.0040.0379.02
5.2.20.0050.0319.00
5.2.10.0030.0448.92
5.2.00.0110.0318.78
5.1.60.0080.0318.07
5.1.50.0170.0408.06
5.1.40.0050.0338.05
5.1.30.0120.0278.40
5.1.20.0080.0378.42
5.1.10.0120.0418.14
5.1.00.0080.0258.14
5.0.50.0150.0506.62
5.0.40.0060.0246.48
5.0.30.0100.0546.29
5.0.20.0030.0226.26
5.0.10.0050.0176.24
5.0.00.0040.0316.23
4.4.90.0030.0154.78
4.4.80.0020.0164.75
4.4.70.0030.0164.75
4.4.60.0030.0154.75
4.4.50.0000.0184.77
4.4.40.0040.0314.71
4.4.30.0020.0164.76
4.4.20.0030.0174.84
4.4.10.0080.0114.84
4.4.00.0060.0234.76
4.3.110.0030.0154.67
4.3.100.0030.0154.66
4.3.90.0050.0134.64
4.3.80.0020.0254.58
4.3.70.0020.0154.63
4.3.60.0040.0194.63
4.3.50.0040.0144.63
4.3.40.0020.0244.54
4.3.30.0020.0163.28
4.3.20.0030.0173.26
4.3.10.0020.0153.22
4.3.00.0000.0237.10

preferences:
143.55 ms | 1394 KiB | 7 Q