3v4l.org

run code in 300+ PHP versions simultaneously
<?php class a { public $b; public function __construct() { $this->a = new __CLASS__; } } 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)
5.4.350.0140.03812.04
5.4.340.0080.04612.02
5.4.320.0090.04812.52
5.4.310.0070.03712.51
5.4.300.0090.04512.52
5.4.290.0070.03912.51
5.4.280.0070.03712.41
5.4.270.0060.03812.41
5.4.260.0100.03512.41
5.4.250.0060.04612.41
5.4.240.0060.03612.41
5.4.230.0100.03912.40
5.4.220.0040.04012.40
5.4.210.0070.04812.40
5.4.200.0120.03412.40
5.4.190.0080.03512.40
5.4.180.0060.03612.40
5.4.170.0050.04212.41
5.4.160.0060.03712.40
5.4.150.0110.03512.39
5.4.140.0070.04512.09
5.4.130.0170.05812.07
5.4.120.0190.06312.04
5.4.110.0100.04112.03
5.4.100.0180.08012.03
5.4.90.0070.04712.04
5.4.80.0140.03612.03
5.4.70.0080.04412.02
5.4.60.0060.03912.03
5.4.50.0050.04112.03
5.4.40.0060.03612.01
5.4.30.0040.04412.01
5.4.20.0060.03612.01
5.4.10.0070.03912.01
5.4.00.0110.03711.50
5.3.290.0110.05212.80
5.3.280.0060.03912.71
5.3.270.0050.04412.72
5.3.260.0040.04212.72
5.3.250.0080.03612.72
5.3.240.0050.04012.72
5.3.230.0050.04012.71
5.3.220.0090.03712.68
5.3.210.0100.04212.68
5.3.200.0060.05312.68
5.3.190.0060.04012.68
5.3.180.0110.03712.67
5.3.170.0090.05012.67
5.3.160.0070.05112.67
5.3.150.0120.05912.67
5.3.140.0080.03812.66
5.3.130.0110.05512.66
5.3.120.0070.04012.66
5.3.110.0090.03612.66
5.3.100.0110.03612.12
5.3.90.0090.04212.11
5.3.80.0140.03912.09
5.3.70.0090.03712.09
5.3.60.0090.03512.08
5.3.50.0090.03312.02
5.3.40.0030.04412.03
5.3.30.0070.03611.98
5.3.20.0060.04111.76
5.3.10.0080.04911.73
5.3.00.0100.04811.72
5.2.170.0080.0349.22
5.2.160.0080.0289.23
5.2.150.0040.0349.22
5.2.140.0050.0329.22
5.2.130.0060.0349.18
5.2.120.0050.0319.18
5.2.110.0100.0269.18
5.2.100.0030.0329.18
5.2.90.0040.0309.18
5.2.80.0040.0319.17
5.2.70.0100.0259.17
5.2.60.0030.0339.13
5.2.50.0060.0329.09
5.2.40.0040.0339.07
5.2.30.0030.0329.04
5.2.20.0110.0359.04
5.2.10.0080.0378.94
5.2.00.0050.0328.80
5.1.60.0070.0278.09
5.1.50.0040.0278.09
5.1.40.0060.0268.07
5.1.30.0040.0308.41
5.1.20.0040.0278.45
5.1.10.0100.0378.17
5.1.00.0080.0338.16
5.0.50.0060.0226.64
5.0.40.0050.0206.50
5.0.30.0040.0316.32
5.0.20.0030.0236.28
5.0.10.0040.0196.25
5.0.00.0070.0286.25
4.4.90.0040.0154.78
4.4.80.0050.0174.75
4.4.70.0050.0144.75
4.4.60.0040.0194.75
4.4.50.0050.0204.77
4.4.40.0030.0254.71
4.4.30.0030.0184.76
4.4.20.0030.0154.85
4.4.10.0050.0164.85
4.4.00.0030.0264.75
4.3.110.0040.0144.67
4.3.100.0020.0164.67
4.3.90.0020.0154.63
4.3.80.0030.0254.59
4.3.70.0070.0204.63
4.3.60.0020.0174.63
4.3.50.0030.0164.63
4.3.40.0040.0234.54
4.3.30.0020.0163.30
4.3.20.0010.0203.28
4.3.10.0040.0143.23
4.3.00.0000.0237.15

preferences:
143.48 ms | 1394 KiB | 7 Q