3v4l.org

run code in 300+ PHP versions simultaneously
<?php namespace RN\Pitt { class Amt { } } namespace { $obj = new RN\Pitt\Amt(); var_dump($obj) $a = 'Pitt'; $b = 'Amt'; $class = 'RN\\' . $a . '\\' . $b; $obj = new $class(); var_dump($obj) }

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)
5.4.310.0060.03712.51
5.4.300.0060.03912.51
5.4.290.0060.03712.51
5.4.280.0080.03512.41
5.4.270.0100.04312.40
5.4.260.0060.04012.40
5.4.250.0030.04112.41
5.4.240.0090.03512.41
5.4.230.0100.03712.40
5.4.220.0040.03612.40
5.4.210.0040.04312.39
5.4.200.0070.03912.39
5.4.190.0040.04112.39
5.4.180.0030.03712.39
5.4.170.0040.04012.40
5.4.160.0070.03612.40
5.4.150.0060.03712.39
5.4.140.0040.03912.08
5.4.130.0040.03812.07
5.4.120.0090.03112.03
5.4.110.0050.03512.03
5.4.100.0030.03912.03
5.4.90.0040.04012.03
5.4.80.0090.03612.02
5.4.70.0090.03412.02
5.4.60.0020.03712.02
5.4.50.0070.04112.02
5.4.40.0050.03512.01
5.4.30.0060.03412.01
5.4.20.0070.03312.00
5.4.10.0080.03312.00
5.4.00.0050.03611.50
5.3.280.0050.03812.71
5.3.270.0090.03812.72
5.3.260.0040.04012.72
5.3.250.0070.03612.72
5.3.240.0070.03512.72
5.3.230.0070.03612.71
5.3.220.0080.03812.68
5.3.210.0060.03812.68
5.3.200.0040.03812.68
5.3.190.0040.04012.68
5.3.180.0110.04212.67
5.3.170.0040.04012.66
5.3.160.0060.04512.67
5.3.150.0070.03912.67
5.3.140.0060.04012.66
5.3.130.0060.03812.66
5.3.120.0070.04612.66
5.3.110.0030.04112.66
5.3.100.0070.03512.12
5.3.90.0120.03812.10
5.3.80.0090.04112.09
5.3.70.0050.03712.09
5.3.60.0100.03712.07
5.3.50.0080.03412.02
5.3.40.0080.04012.02
5.3.30.0060.03711.98
5.3.20.0030.03811.76
5.3.10.0080.03311.73
5.3.00.0040.03811.71
5.2.170.0050.0309.18
5.2.160.0070.0279.18
5.2.150.0050.0319.18
5.2.140.0060.0319.19
5.2.130.0030.0309.14
5.2.120.0060.0389.14
5.2.110.0050.0299.14
5.2.100.0010.0319.14
5.2.90.0050.0299.14
5.2.80.0050.0329.14
5.2.70.0020.0329.13
5.2.60.0070.0289.09
5.2.50.0080.0329.07
5.2.40.0090.0379.04
5.2.30.0070.0279.01
5.2.20.0050.0289.00
5.2.10.0050.0348.92
5.2.00.0060.0328.78
5.1.60.0010.0288.07
5.1.50.0060.0238.07
5.1.40.0040.0278.05
5.1.30.0050.0318.40
5.1.20.0030.0288.42
5.1.10.0040.0288.14
5.1.00.0040.0258.14
5.0.50.0030.0216.62
5.0.40.0040.0186.47
5.0.30.0040.0316.29
5.0.20.0040.0196.27
5.0.10.0050.0196.24
5.0.00.0050.0366.23
4.4.90.0040.0194.78
4.4.80.0010.0214.76
4.4.70.0030.0174.75
4.4.60.0060.0144.75
4.4.50.0020.0194.77
4.4.40.0010.0314.71
4.4.30.0020.0174.76
4.4.20.0030.0174.84
4.4.10.0040.0164.85
4.4.00.0050.0244.76
4.3.110.0030.0154.67
4.3.100.0050.0184.67
4.3.90.0060.0184.63
4.3.80.0050.0294.58
4.3.70.0050.0194.63
4.3.60.0060.0184.63
4.3.50.0070.0154.63
4.3.40.0020.0314.54
4.3.30.0040.0163.28
4.3.20.0030.0153.25
4.3.10.0020.0163.22
4.3.00.0000.01315.27

preferences:
136.67 ms | 1394 KiB | 7 Q