3v4l.org

run code in 300+ PHP versions simultaneously
<?php class x { public function __construct() { $x =& $this; $x = new stdClass; var_dump($this); } }}; var_dump(new x);

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)
5.4.310.0080.03612.51
5.4.300.0100.04312.52
5.4.290.0080.04112.51
5.4.280.0080.04212.41
5.4.270.0050.03912.41
5.4.260.0080.03712.41
5.4.250.0060.03912.41
5.4.240.0070.03812.41
5.4.230.0070.04112.40
5.4.220.0050.03912.40
5.4.210.0090.03312.40
5.4.200.0050.04012.40
5.4.190.0070.04612.40
5.4.180.0030.05412.39
5.4.170.0110.04712.41
5.4.160.0070.05012.40
5.4.150.0060.04512.39
5.4.140.0070.03912.09
5.4.130.0060.04112.07
5.4.120.0070.04812.03
5.4.110.0090.03412.03
5.4.100.0040.03812.03
5.4.90.0040.04112.03
5.4.80.0080.03712.03
5.4.70.0060.03412.03
5.4.60.0040.03612.03
5.4.50.0060.03612.03
5.4.40.0080.03912.01
5.4.30.0090.03212.02
5.4.20.0030.03812.01
5.4.10.0070.03412.01
5.4.00.0030.04011.50
5.3.280.0060.03912.71
5.3.270.0070.04012.73
5.3.260.0060.04012.72
5.3.250.0050.03812.72
5.3.240.0040.04012.72
5.3.230.0070.03712.71
5.3.220.0090.03812.68
5.3.210.0070.04312.68
5.3.200.0070.03512.68
5.3.190.0070.03712.67
5.3.180.0100.03312.67
5.3.170.0070.03712.67
5.3.160.0060.04012.68
5.3.150.0050.03712.67
5.3.140.0060.03612.66
5.3.130.0070.04112.66
5.3.120.0050.04112.66
5.3.110.0040.04112.66
5.3.100.0090.03412.12
5.3.90.0070.03712.11
5.3.80.0100.03212.09
5.3.70.0060.04012.09
5.3.60.0050.04612.07
5.3.50.0040.03912.03
5.3.40.0060.03712.03
5.3.30.0050.03711.98
5.3.20.0040.03711.76
5.3.10.0020.03811.73
5.3.00.0080.03511.71
5.2.170.0060.0319.22
5.2.160.0050.0309.22
5.2.150.0080.0299.22
5.2.140.0060.0319.21
5.2.130.0040.0319.18
5.2.120.0040.0359.18
5.2.110.0080.0309.19
5.2.100.0050.0299.17
5.2.90.0060.0319.18
5.2.80.0060.0309.18
5.2.70.0060.0329.18
5.2.60.0060.0319.13
5.2.50.0030.0379.10
5.2.40.0060.0399.07
5.2.30.0130.0349.05
5.2.20.0090.0349.04
5.2.10.0050.0288.95
5.2.00.0040.0298.80
5.1.60.0070.0218.09
5.1.50.0050.0248.09
5.1.40.0020.0288.07
5.1.30.0080.0298.41
5.1.20.0070.0308.44
5.1.10.0060.0288.16
5.1.00.0050.0278.16
5.0.50.0050.0236.64
5.0.40.0060.0226.50
5.0.30.0040.0336.32
5.0.20.0050.0196.28
5.0.10.0080.0186.26
5.0.00.0050.0346.25
4.4.90.0020.0164.78
4.4.80.0050.0144.75
4.4.70.0010.0174.76
4.4.60.0020.0174.75
4.4.50.0040.0154.77
4.4.40.0060.0214.71
4.4.30.0040.0144.76
4.4.20.0030.0224.85
4.4.10.0020.0204.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0050.0134.67
4.3.90.0050.0124.63
4.3.80.0020.0274.59
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0030.0164.63
4.3.40.0010.0264.54
4.3.30.0030.0153.30
4.3.20.0000.0183.28
4.3.10.0010.0163.23
4.3.00.0100.01015.17

preferences:
143.05 ms | 1394 KiB | 7 Q