3v4l.org

run code in 300+ PHP versions simultaneously
<?php $var = false; var_dump(empty($var);

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)
5.4.310.0080.03612.50
5.4.300.0080.04112.49
5.4.290.0070.03812.49
5.4.280.0080.03712.39
5.4.270.0060.03612.39
5.4.260.0050.04612.39
5.4.250.0060.03712.39
5.4.240.0130.03612.39
5.4.230.0040.04212.38
5.4.220.0070.03712.38
5.4.210.0060.03412.38
5.4.200.0060.03712.38
5.4.190.0030.03812.38
5.4.180.0070.03512.38
5.4.170.0080.03412.39
5.4.160.0040.03712.38
5.4.150.0040.04112.38
5.4.140.0110.03412.07
5.4.130.0040.03812.05
5.4.120.0050.03512.02
5.4.110.0050.03612.01
5.4.100.0090.03212.01
5.4.90.0050.03712.02
5.4.80.0070.03712.01
5.4.70.0100.03012.01
5.4.60.0050.03512.01
5.4.50.0080.03312.00
5.4.40.0050.03512.00
5.4.30.0080.04111.99
5.4.20.0060.03511.98
5.4.10.0050.03611.99
5.4.00.0060.03911.48
5.3.280.0060.03912.71
5.3.270.0080.03712.72
5.3.260.0070.03912.72
5.3.250.0050.03912.72
5.3.240.0060.03712.72
5.3.230.0070.03612.71
5.3.220.0060.03812.68
5.3.210.0070.03712.68
5.3.200.0120.03312.68
5.3.190.0060.04512.68
5.3.180.0130.03812.68
5.3.170.0030.04412.66
5.3.160.0060.03912.67
5.3.150.0090.03812.67
5.3.140.0080.03812.66
5.3.130.0090.04812.66
5.3.120.0100.03512.66
5.3.110.0080.04812.66
5.3.100.0070.03612.12
5.3.90.0070.04412.08
5.3.80.0120.03612.07
5.3.70.0020.04012.07
5.3.60.0080.04012.06
5.3.50.0050.03712.00
5.3.40.0020.04012.00
5.3.30.0110.03811.95
5.3.20.0080.03311.74
5.3.10.0090.03211.70
5.3.00.0080.03511.68
5.2.170.0070.0299.18
5.2.160.0050.0339.18
5.2.150.0080.0289.18
5.2.140.0030.0339.18
5.2.130.0070.0269.14
5.2.120.0040.0299.14
5.2.110.0110.0289.14
5.2.100.0070.0279.14
5.2.90.0070.0269.14
5.2.80.0070.0279.14
5.2.70.0020.0369.14
5.2.60.0080.0329.09
5.2.50.0090.0349.06
5.2.40.0100.0329.04
5.2.30.0110.0279.01
5.2.20.0070.0349.00
5.2.10.0030.0398.93
5.2.00.0030.0318.78
5.1.60.0040.0258.07
5.1.50.0040.0258.06
5.1.40.0050.0248.05
5.1.30.0060.0258.40
5.1.20.0060.0248.42
5.1.10.0070.0238.14
5.1.00.0050.0248.14
5.0.50.0070.0166.62
5.0.40.0020.0206.48
5.0.30.0020.0326.29
5.0.20.0020.0216.27
5.0.10.0050.0186.24
5.0.00.0070.0286.23
4.4.90.0010.0174.78
4.4.80.0030.0154.76
4.4.70.0020.0164.76
4.4.60.0030.0154.75
4.4.50.0040.0144.77
4.4.40.0040.0244.71
4.4.30.0030.0144.76
4.4.20.0010.0174.85
4.4.10.0010.0174.85
4.4.00.0030.0244.76
4.3.110.0050.0134.67
4.3.100.0030.0144.66
4.3.90.0050.0124.64
4.3.80.0070.0204.58
4.3.70.0020.0154.63
4.3.60.0050.0134.63
4.3.50.0030.0164.63
4.3.40.0010.0274.53
4.3.30.0000.0183.29
4.3.20.0010.0173.26
4.3.10.0000.0183.21
4.3.00.0030.0207.13

preferences:
140.92 ms | 1394 KiB | 7 Q