3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyClass {} function f() { $c = new MyClass(); $s = 'MyClass'; if ($c instanceof $s) { echo "yes1\n"; } else { echo "no1\n"; } $s = 'My'; if ($c instanceof ($s.'Class')) { echo "yes2\n"; } else { echo "no2\n"; } } f();

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)
8.3.60.0000.01418.43
8.3.50.0130.00718.19
8.3.40.0140.00718.75
8.3.30.0070.01119.09
8.3.20.0080.00020.17
8.3.10.0030.00620.36
8.3.00.0060.00319.26
8.2.180.0160.00016.50
8.2.170.0100.01022.96
8.2.160.0100.00320.40
8.2.150.0000.00724.18
8.2.140.0060.00324.66
8.2.130.0000.00726.16
8.2.120.0030.00622.06
8.2.110.0100.00022.14
8.2.100.0040.00418.80
8.1.280.0140.00025.92
8.1.270.0060.00321.95
8.1.260.0060.00326.35
8.1.250.0000.00728.09
8.1.240.0090.00018.49
8.1.230.0050.00518.46
5.4.320.0070.03712.52
5.4.310.0070.04312.52
5.4.300.0090.04012.52
5.4.290.0070.04112.51
5.4.280.0100.03212.41
5.4.270.0070.04512.41
5.4.260.0070.04212.41
5.4.250.0080.03712.41
5.4.240.0040.03712.41
5.4.230.0070.04112.40
5.4.220.0080.04512.40
5.4.210.0060.03412.40
5.4.200.0060.03712.40
5.4.190.0030.04112.40
5.4.180.0070.03512.39
5.4.170.0080.03312.41
5.4.160.0070.03412.40
5.4.150.0030.04012.39
5.4.140.0070.04112.09
5.4.130.0100.04112.07
5.4.120.0060.03712.03
5.4.110.0080.03912.03
5.4.100.0040.04212.03
5.4.90.0080.04512.03
5.4.80.0090.03512.03
5.4.70.0060.03812.03
5.4.60.0060.03412.03
5.4.50.0070.03412.02
5.4.40.0070.03512.02
5.4.30.0050.03712.01
5.4.20.0080.03212.01
5.4.10.0090.03212.01
5.4.00.0090.03211.50
5.3.290.0080.03712.80
5.3.280.0060.03812.71
5.3.270.0050.04412.73
5.3.260.0060.04312.72
5.3.250.0070.04312.72
5.3.240.0100.03612.72
5.3.230.0070.03812.70
5.3.220.0090.03512.68
5.3.210.0070.03812.68
5.3.200.0090.03412.68
5.3.190.0050.03912.68
5.3.180.0050.03812.68
5.3.170.0090.03612.67
5.3.160.0060.04112.67
5.3.150.0080.04312.67
5.3.140.0080.03412.66
5.3.130.0090.03612.66
5.3.120.0070.03812.66
5.3.110.0080.04412.65
5.3.100.0070.03612.13
5.3.90.0060.03612.10
5.3.80.0060.04012.09
5.3.70.0070.03612.09
5.3.60.0090.03412.08
5.3.50.0070.03612.03
5.3.40.0030.04012.03
5.3.30.0060.03411.98
5.3.20.0050.03511.77
5.3.10.0080.03211.73
5.3.00.0090.03211.72
5.2.170.0030.0329.22
5.2.160.0070.0269.22
5.2.150.0050.0329.23
5.2.140.0100.0349.22
5.2.130.0030.0409.18
5.2.120.0060.0269.18
5.2.110.0060.0279.19
5.2.100.0030.0299.18
5.2.90.0020.0319.18
5.2.80.0050.0309.18
5.2.70.0060.0329.18
5.2.60.0070.0329.13
5.2.50.0060.0289.10
5.2.40.0020.0319.08
5.2.30.0060.0289.05
5.2.20.0040.0299.04
5.2.10.0030.0298.95
5.2.00.0030.0308.81
5.1.60.0050.0228.09
5.1.50.0060.0238.09
5.1.40.0040.0248.07
5.1.30.0050.0258.41
5.1.20.0050.0268.44
5.1.10.0050.0258.16
5.1.00.0060.0248.16
5.0.50.0050.0206.64
5.0.40.0040.0196.50
5.0.30.0050.0306.31
5.0.20.0050.0226.28
5.0.10.0050.0186.26
5.0.00.0040.0306.25
4.4.90.0040.0184.78
4.4.80.0010.0174.75
4.4.70.0010.0184.76
4.4.60.0040.0144.76
4.4.50.0030.0154.77
4.4.40.0040.0244.71
4.4.30.0040.0144.76
4.4.20.0010.0164.84
4.4.10.0040.0144.85
4.4.00.0020.0254.76
4.3.110.0030.0154.67
4.3.100.0040.0144.67
4.3.90.0050.0124.63
4.3.80.0030.0294.58
4.3.70.0030.0144.63
4.3.60.0050.0124.63
4.3.50.0020.0164.63
4.3.40.0030.0244.54
4.3.30.0030.0153.30
4.3.20.0020.0163.27
4.3.10.0020.0153.24
4.3.00.0000.0374.85

preferences:
34.97 ms | 400 KiB | 5 Q