3v4l.org

run code in 300+ PHP versions simultaneously
<?php define('CONSTANT', 1); define('_CONSTANT', 0); define('EMPTY', ''); var_dump(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)
5.4.320.0070.03812.50
5.4.310.0060.03812.50
5.4.300.0080.03612.50
5.4.290.0090.03712.49
5.4.280.0050.04012.39
5.4.270.0060.03512.39
5.4.260.0090.03312.39
5.4.250.0090.03312.39
5.4.240.0040.03712.39
5.4.230.0050.03812.38
5.4.220.0040.03812.38
5.4.210.0080.03312.38
5.4.200.0100.03412.38
5.4.190.0120.03412.38
5.4.180.0080.04212.38
5.4.170.0060.03812.38
5.4.160.0120.03312.38
5.4.150.0050.03912.38
5.4.140.0060.03712.07
5.4.130.0050.03712.05
5.4.120.0060.03612.02
5.4.110.0060.03412.01
5.4.100.0040.03712.01
5.4.90.0050.04112.01
5.4.80.0060.03712.01
5.4.70.0060.03412.01
5.4.60.0060.03312.00
5.4.50.0080.04412.00
5.4.40.0030.03612.00
5.4.30.0040.03711.99
5.4.20.0070.03311.99
5.4.10.0040.03511.99
5.4.00.0080.03311.48
5.3.290.0050.03912.80
5.3.280.0100.04012.71
5.3.270.0090.03712.72
5.3.260.0090.03812.72
5.3.250.0080.03812.72
5.3.240.0080.03612.72
5.3.230.0040.04012.71
5.3.220.0100.04012.68
5.3.210.0070.03812.68
5.3.200.0030.03812.68
5.3.190.0060.04212.68
5.3.180.0050.03612.67
5.3.170.0070.04212.67
5.3.160.0060.03712.67
5.3.150.0070.04012.67
5.3.140.0040.03812.66
5.3.130.0050.03912.66
5.3.120.0020.04112.66
5.3.110.0050.03912.66
5.3.100.0050.03812.12
5.3.90.0060.03512.08
5.3.80.0040.03812.07
5.3.70.0090.04512.07
5.3.60.0080.05012.07
5.3.50.0070.04012.00
5.3.40.0030.03912.00
5.3.30.0060.03311.95
5.3.20.0060.04911.73
5.3.10.0050.03911.70
5.3.00.0040.03811.68
5.2.170.0040.0309.18
5.2.160.0040.0299.18
5.2.150.0030.0329.18
5.2.140.0070.0349.18
5.2.130.0070.0319.14
5.2.120.0020.0329.14
5.2.110.0090.0329.14
5.2.100.0070.0359.14
5.2.90.0020.0319.14
5.2.80.0040.0319.14
5.2.70.0060.0289.14
5.2.60.0050.0379.09
5.2.50.0040.0399.06
5.2.40.0040.0349.04
5.2.30.0040.0299.01
5.2.20.0060.0279.00
5.2.10.0040.0288.92
5.2.00.0040.0298.78
5.1.60.0050.0248.07
5.1.50.0030.0258.07
5.1.40.0010.0268.05
5.1.30.0040.0288.40
5.1.20.0030.0278.42
5.1.10.0030.0268.15
5.1.00.0040.0258.15
5.0.50.0050.0186.63
5.0.40.0020.0286.48
5.0.30.0050.0316.29
5.0.20.0050.0176.27
5.0.10.0030.0206.24
5.0.00.0010.0336.23
4.4.90.0050.0134.78
4.4.80.0020.0154.76
4.4.70.0040.0144.76
4.4.60.0030.0154.76
4.4.50.0020.0164.77
4.4.40.0030.0244.71
4.4.30.0020.0164.76
4.4.20.0020.0184.84
4.4.10.0000.0184.85
4.4.00.0030.0274.75
4.3.110.0020.0184.67
4.3.100.0030.0144.66
4.3.90.0010.0154.63
4.3.80.0030.0304.59
4.3.70.0010.0234.63
4.3.60.0010.0154.63
4.3.50.0020.0164.63
4.3.40.0040.0264.53
4.3.30.0020.0203.29
4.3.20.0020.0153.27
4.3.10.0010.0163.22
4.3.00.0000.02015.63

preferences:
141.84 ms | 1394 KiB | 7 Q