3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('CONSTANT', 1); define('_CONSTANT', 0); define('EMPTY', ''); if (!empty(EMPTY)) { if (!(boolean) _CONSTANT) { echo 1; } } else if (constant('CONSTANT') == 1) { echo 2; }

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)
5.4.320.0100.03212.49
5.4.310.0040.04112.50
5.4.300.0070.03612.49
5.4.290.0050.03912.50
5.4.280.0070.04712.39
5.4.270.0030.04212.39
5.4.260.0030.04012.39
5.4.250.0050.03812.39
5.4.240.0070.03712.39
5.4.230.0080.03612.38
5.4.220.0040.03712.38
5.4.210.0040.03712.38
5.4.200.0100.03512.38
5.4.190.0060.03512.38
5.4.180.0060.03512.38
5.4.170.0050.03812.39
5.4.160.0100.03212.38
5.4.150.0040.03912.38
5.4.140.0070.03612.07
5.4.130.0040.03712.05
5.4.120.0060.03512.01
5.4.110.0030.03812.01
5.4.100.0080.03312.01
5.4.90.0030.03912.01
5.4.80.0050.03712.01
5.4.70.0030.03712.00
5.4.60.0050.03512.01
5.4.50.0060.03412.00
5.4.40.0090.03111.99
5.4.30.0110.04211.99
5.4.20.0060.04911.99
5.4.10.0060.03612.00
5.4.00.0020.03911.48
5.3.290.0060.03712.80
5.3.280.0090.03312.71
5.3.270.0060.03812.72
5.3.260.0080.03712.72
5.3.250.0050.04512.72
5.3.240.0090.04612.72
5.3.230.0090.04612.71
5.3.220.0050.04512.68
5.3.210.0090.03712.68
5.3.200.0070.03612.68
5.3.190.0120.04412.68
5.3.180.0090.06112.68
5.3.170.0110.04912.67
5.3.160.0120.03812.67
5.3.150.0140.06912.68
5.3.140.0110.06612.66
5.3.130.0080.04912.66
5.3.120.0130.04312.66
5.3.110.0070.04012.66
5.3.100.0100.03712.12
5.3.90.0090.04512.08
5.3.80.0190.04812.07
5.3.70.0150.04712.07
5.3.60.0070.04012.06
5.3.50.0140.03412.00
5.3.40.0100.04512.00
5.3.30.0080.03911.95
5.3.20.0080.03511.72
5.3.10.0050.03511.70
5.3.00.0050.03811.68
5.2.170.0080.0279.18
5.2.160.0080.0279.19
5.2.150.0070.0289.18
5.2.140.0070.0359.18
5.2.130.0090.0259.14
5.2.120.0080.0299.14
5.2.110.0090.0289.15
5.2.100.0050.0299.14
5.2.90.0050.0309.14
5.2.80.0040.0329.14
5.2.70.0040.0329.14
5.2.60.0070.0309.09
5.2.50.0060.0319.06
5.2.40.0060.0319.04
5.2.30.0040.0339.02
5.2.20.0060.0299.00
5.2.10.0030.0298.93
5.2.00.0040.0298.79
5.1.60.0090.0288.07
5.1.50.0070.0228.07
5.1.40.0040.0248.05
5.1.30.0010.0298.39
5.1.20.0050.0268.42
5.1.10.0030.0278.14
5.1.00.0050.0318.14
5.0.50.0030.0206.62
5.0.40.0030.0206.48
5.0.30.0070.0296.29
5.0.20.0050.0176.27
5.0.10.0030.0206.24
5.0.00.0060.0296.23
4.4.90.0060.0134.78
4.4.80.0010.0174.75
4.4.70.0020.0174.75
4.4.60.0050.0154.76
4.4.50.0030.0164.77
4.4.40.0060.0284.70
4.4.30.0090.0134.76
4.4.20.0040.0144.85
4.4.10.0000.0184.85
4.4.00.0050.0224.76
4.3.110.0030.0154.67
4.3.100.0030.0144.67
4.3.90.0030.0144.63
4.3.80.0020.0254.58
4.3.70.0030.0144.63
4.3.60.0020.0154.63
4.3.50.0020.0184.63
4.3.40.0020.0254.54
4.3.30.0020.0163.29
4.3.20.0010.0173.27
4.3.10.0030.0163.22
4.3.00.0000.0237.12

preferences:
136.68 ms | 1394 KiB | 7 Q