3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('CONSTANT', 1); define('_CONSTANT', 0); define('EMPTY', ''); var_dump(EMPTY); $a = '5'; if (!empty($a)) { 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)
5.4.320.0060.03612.49
5.4.310.0050.03912.49
5.4.300.0040.03912.50
5.4.290.0080.03612.49
5.4.280.0060.03512.39
5.4.270.0090.03412.39
5.4.260.0060.03912.39
5.4.250.0030.04212.39
5.4.240.0070.04112.39
5.4.230.0050.04612.38
5.4.220.0080.03312.38
5.4.210.0030.03712.38
5.4.200.0050.03712.38
5.4.190.0040.03712.38
5.4.180.0060.03512.38
5.4.170.0090.03212.39
5.4.160.0060.03512.38
5.4.150.0120.02912.38
5.4.140.0050.03812.07
5.4.130.0050.03512.05
5.4.120.0020.03812.01
5.4.110.0010.03912.01
5.4.100.0080.03212.01
5.4.90.0030.03812.01
5.4.80.0030.04012.01
5.4.70.0060.03512.00
5.4.60.0070.03312.01
5.4.50.0030.03712.01
5.4.40.0020.03811.99
5.4.30.0040.03811.99
5.4.20.0060.03511.99
5.4.10.0060.03411.99
5.4.00.0020.03911.48
5.3.290.0090.03512.80
5.3.280.0070.03612.71
5.3.270.0060.03912.72
5.3.260.0070.03712.72
5.3.250.0130.03012.72
5.3.240.0040.03912.72
5.3.230.0020.04112.71
5.3.220.0050.03812.68
5.3.210.0040.04112.68
5.3.200.0070.03512.68
5.3.190.0070.04112.67
5.3.180.0060.04112.67
5.3.170.0090.03712.67
5.3.160.0070.03612.67
5.3.150.0060.03712.67
5.3.140.0040.03812.66
5.3.130.0030.04712.66
5.3.120.0080.03512.66
5.3.110.0070.03812.66
5.3.100.0030.04012.11
5.3.90.0050.03812.09
5.3.80.0060.03712.08
5.3.70.0070.03312.08
5.3.60.0090.03812.06
5.3.50.0090.03612.00
5.3.40.0080.03712.00
5.3.30.0080.03711.95
5.3.20.0070.03511.72
5.3.10.0060.03511.70
5.3.00.0100.03211.68
5.2.170.0030.0329.18
5.2.160.0030.0319.18
5.2.150.0070.0279.18
5.2.140.0060.0289.18
5.2.130.0050.0289.14
5.2.120.0040.0309.14
5.2.110.0060.0289.15
5.2.100.0050.0279.14
5.2.90.0070.0269.14
5.2.80.0070.0369.14
5.2.70.0030.0339.14
5.2.60.0070.0279.09
5.2.50.0060.0289.05
5.2.40.0070.0319.04
5.2.30.0040.0319.02
5.2.20.0040.0299.01
5.2.10.0050.0278.93
5.2.00.0070.0268.79
5.1.60.0040.0248.07
5.1.50.0050.0238.06
5.1.40.0020.0268.04
5.1.30.0020.0288.40
5.1.20.0110.0228.42
5.1.10.0090.0278.14
5.1.00.0050.0258.14
5.0.50.0020.0226.62
5.0.40.0010.0216.48
5.0.30.0040.0306.29
5.0.20.0050.0176.27
5.0.10.0040.0196.24
5.0.00.0030.0316.23
4.4.90.0040.0134.78
4.4.80.0020.0154.75
4.4.70.0050.0174.75
4.4.60.0030.0174.75
4.4.50.0040.0184.77
4.4.40.0020.0264.71
4.4.30.0030.0154.76
4.4.20.0030.0154.85
4.4.10.0020.0154.85
4.4.00.0030.0244.76
4.3.110.0040.0204.67
4.3.100.0030.0144.66
4.3.90.0060.0204.64
4.3.80.0030.0304.59
4.3.70.0030.0144.63
4.3.60.0010.0164.63
4.3.50.0030.0154.63
4.3.40.0030.0234.54
4.3.30.0000.0173.29
4.3.20.0020.0163.27
4.3.10.0030.0143.22
4.3.00.0030.0207.51

preferences:
132.32 ms | 1398 KiB | 7 Q