3v4l.org

run code in 300+ PHP versions simultaneously
<?php const A = new StdClass(); $constant = 'A'; if (defined($constant) && ! is_scalar(constant($constant)) && ! is_resource(constant($constant)) && constant($constant) !== null) { echo "Yes, I am non-scalar and non-resource constant!\n"; }

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)
5.4.310.0070.04312.50
5.4.300.0040.03812.50
5.4.290.0090.03412.49
5.4.280.0080.03312.39
5.4.270.0060.03712.39
5.4.260.0060.04212.39
5.4.250.0070.03712.39
5.4.240.0060.03612.39
5.4.230.0060.03812.38
5.4.220.0060.03612.38
5.4.210.0050.04212.38
5.4.200.0040.03912.38
5.4.190.0050.04212.38
5.4.180.0090.04212.38
5.4.170.0090.03512.39
5.4.160.0120.03412.38
5.4.150.0060.03512.37
5.4.140.0050.03812.07
5.4.130.0030.03912.05
5.4.120.0060.03712.01
5.4.110.0050.03612.01
5.4.100.0090.04212.01
5.4.90.0090.03712.02
5.4.80.0060.03912.01
5.4.70.0060.03612.01
5.4.60.0040.03612.01
5.4.50.0040.04112.01
5.4.40.0040.04212.00
5.4.30.0070.03711.99
5.4.20.0060.04111.99
5.4.10.0080.03711.99
5.4.00.0050.04211.48
5.3.280.0050.04212.71
5.3.270.0060.03912.72
5.3.260.0070.03912.72
5.3.250.0060.03812.72
5.3.240.0060.03812.72
5.3.230.0080.03712.71
5.3.220.0050.05112.68
5.3.210.0050.04312.68
5.3.200.0090.03912.68
5.3.190.0090.04012.68
5.3.180.0100.04912.67
5.3.170.0090.04412.67
5.3.160.0060.03712.67
5.3.150.0160.04312.67
5.3.140.0060.03812.66
5.3.130.0080.03712.66
5.3.120.0070.03612.66
5.3.110.0060.03812.66
5.3.100.0060.03812.12
5.3.90.0080.03612.08
5.3.80.0030.04112.07
5.3.70.0040.04112.07
5.3.60.0070.04112.06
5.3.50.0050.03512.00
5.3.40.0050.03612.00
5.3.30.0040.03611.96
5.3.20.0060.03911.73
5.3.10.0040.03911.70
5.3.00.0050.03911.68
5.2.170.0050.0319.18
5.2.160.0070.0309.18
5.2.150.0060.0299.18
5.2.140.0080.0299.18
5.2.130.0070.0319.14
5.2.120.0060.0279.14
5.2.110.0010.0329.14
5.2.100.0030.0299.14
5.2.90.0020.0379.14
5.2.80.0050.0419.14
5.2.70.0070.0289.14
5.2.60.0040.0329.09
5.2.50.0040.0339.05
5.2.40.0040.0309.04
5.2.30.0050.0319.02
5.2.20.0050.0339.00
5.2.10.0060.0268.93
5.2.00.0090.0398.79
5.1.60.0020.0298.07
5.1.50.0070.0238.06
5.1.40.0030.0268.05
5.1.30.0060.0258.40
5.1.20.0060.0258.42
5.1.10.0050.0288.14
5.1.00.0030.0268.14
5.0.50.0060.0256.63
5.0.40.0050.0226.48
5.0.30.0040.0326.29
5.0.20.0060.0256.27
5.0.10.0060.0216.24
5.0.00.0030.0306.23
4.4.90.0030.0224.78
4.4.80.0030.0164.76
4.4.70.0010.0174.75
4.4.60.0010.0174.76
4.4.50.0020.0164.77
4.4.40.0030.0254.71
4.4.30.0020.0164.76
4.4.20.0010.0194.84
4.4.10.0030.0154.85
4.4.00.0030.0284.76
4.3.110.0040.0154.67
4.3.100.0020.0154.66
4.3.90.0040.0144.63
4.3.80.0050.0224.58
4.3.70.0040.0134.63
4.3.60.0030.0164.63
4.3.50.0040.0224.63
4.3.40.0030.0294.54
4.3.30.0020.0153.28
4.3.20.0030.0173.26
4.3.10.0030.0153.22
4.3.00.0070.00715.90

preferences:
140.81 ms | 1394 KiB | 7 Q