3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('CONSTANT', 1); define('_CONSTANT', 0); define('EMPTY', ''); var_dump(EMPTY); if (!empty('5')) { 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)
5.4.320.0070.03612.49
5.4.310.0040.04612.49
5.4.300.0060.03712.50
5.4.290.0050.04112.49
5.4.280.0060.03612.39
5.4.270.0060.04012.39
5.4.260.0050.03912.39
5.4.250.0040.03912.39
5.4.240.0040.03812.39
5.4.230.0060.03812.38
5.4.220.0040.03812.38
5.4.210.0050.03712.38
5.4.200.0070.04712.38
5.4.190.0050.04312.38
5.4.180.0060.04012.38
5.4.170.0080.03712.38
5.4.160.0070.03512.38
5.4.150.0070.03412.38
5.4.140.0070.03912.07
5.4.130.0060.03412.05
5.4.120.0050.03512.02
5.4.110.0050.03512.01
5.4.100.0050.03912.01
5.4.90.0050.03912.01
5.4.80.0070.03612.01
5.4.70.0050.03512.01
5.4.60.0060.03512.01
5.4.50.0090.03612.01
5.4.40.0090.03411.99
5.4.30.0040.03711.99
5.4.20.0060.03511.98
5.4.10.0080.03411.99
5.4.00.0070.03411.48
5.3.290.0040.04112.80
5.3.280.0070.03612.71
5.3.270.0070.03912.72
5.3.260.0070.03812.72
5.3.250.0070.03612.72
5.3.240.0050.03812.72
5.3.230.0060.03712.71
5.3.220.0050.03812.68
5.3.210.0070.04112.68
5.3.200.0090.03612.68
5.3.190.0090.03612.68
5.3.180.0080.03512.68
5.3.170.0050.03812.67
5.3.160.0040.03912.67
5.3.150.0060.03912.67
5.3.140.0090.04112.66
5.3.130.0100.04312.66
5.3.120.0050.04112.66
5.3.110.0070.03912.66
5.3.100.0050.03612.12
5.3.90.0040.03712.08
5.3.80.0060.03612.08
5.3.70.0070.03812.08
5.3.60.0040.03912.06
5.3.50.0060.03912.00
5.3.40.0050.04512.00
5.3.30.0050.03711.95
5.3.20.0040.03711.72
5.3.10.0050.03711.70
5.3.00.0040.03811.69
5.2.170.0050.0319.19
5.2.160.0050.0299.19
5.2.150.0060.0299.19
5.2.140.0020.0329.18
5.2.130.0040.0339.14
5.2.120.0040.0299.14
5.2.110.0050.0359.15
5.2.100.0040.0309.14
5.2.90.0030.0309.14
5.2.80.0040.0309.14
5.2.70.0040.0319.14
5.2.60.0020.0329.09
5.2.50.0050.0299.06
5.2.40.0040.0289.04
5.2.30.0040.0309.02
5.2.20.0040.0359.01
5.2.10.0080.0278.93
5.2.00.0060.0308.78
5.1.60.0040.0258.07
5.1.50.0070.0228.06
5.1.40.0070.0238.04
5.1.30.0050.0298.40
5.1.20.0050.0258.42
5.1.10.0040.0268.15
5.1.00.0030.0288.15
5.0.50.0040.0216.62
5.0.40.0040.0196.48
5.0.30.0040.0316.29
5.0.20.0020.0206.26
5.0.10.0040.0196.24
5.0.00.0040.0296.23
4.4.90.0030.0164.78
4.4.80.0020.0154.76
4.4.70.0020.0154.76
4.4.60.0030.0144.76
4.4.50.0040.0144.77
4.4.40.0020.0254.71
4.4.30.0040.0164.76
4.4.20.0030.0164.85
4.4.10.0020.0164.85
4.4.00.0020.0254.76
4.3.110.0020.0164.67
4.3.100.0030.0144.67
4.3.90.0020.0184.63
4.3.80.0040.0234.58
4.3.70.0020.0154.63
4.3.60.0030.0144.63
4.3.50.0030.0154.63
4.3.40.0040.0234.54
4.3.30.0020.0163.29
4.3.20.0020.0203.27
4.3.10.0020.0153.22
4.3.00.0170.0176.95

preferences:
142.76 ms | 1386 KiB | 7 Q