3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(empty(0)); var_dump(empty(false)); var_dump(empty(1)); var_dump(empty(true)); $a = []; var_dump(empty($a[0]['hi']);

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)
5.4.320.0060.03612.50
5.4.310.0060.03812.50
5.4.300.0070.04912.50
5.4.290.0070.03812.49
5.4.280.0090.03412.39
5.4.270.0080.03712.39
5.4.260.0060.04312.39
5.4.250.0050.04012.39
5.4.240.0070.03812.39
5.4.230.0110.04912.38
5.4.220.0070.04012.38
5.4.210.0060.04012.38
5.4.200.0040.05412.38
5.4.190.0050.03712.38
5.4.180.0040.03812.38
5.4.170.0060.04212.39
5.4.160.0070.04012.38
5.4.150.0050.03812.38
5.4.140.0070.04412.07
5.4.130.0050.04912.05
5.4.120.0040.03712.02
5.4.110.0050.03612.01
5.4.100.0090.03112.01
5.4.90.0050.03912.01
5.4.80.0040.04312.01
5.4.70.0070.04212.00
5.4.60.0030.03812.00
5.4.50.0070.03712.01
5.4.40.0050.03712.00
5.4.30.0090.03311.99
5.4.20.0060.03411.99
5.4.10.0100.03511.99
5.4.00.0060.03611.49
5.3.290.0040.04212.80
5.3.280.0070.03712.71
5.3.270.0090.03612.73
5.3.260.0030.04112.72
5.3.250.0060.04112.72
5.3.240.0050.03912.72
5.3.230.0030.04112.71
5.3.220.0070.03612.68
5.3.210.0110.03312.68
5.3.200.0070.03412.68
5.3.190.0060.03712.68
5.3.180.0070.03412.68
5.3.170.0080.03412.67
5.3.160.0040.03912.67
5.3.150.0070.03912.67
5.3.140.0070.04312.66
5.3.130.0130.04712.66
5.3.120.0070.04012.66
5.3.110.0080.03712.66
5.3.100.0040.03912.12
5.3.90.0060.03712.09
5.3.80.0020.04012.08
5.3.70.0050.03612.08
5.3.60.0100.03212.06
5.3.50.0060.03612.00
5.3.40.0040.03912.00
5.3.30.0070.03411.95
5.3.20.0080.03511.73
5.3.10.0060.03511.70
5.3.00.0050.03911.68
5.2.170.0070.0289.18
5.2.160.0010.0329.18
5.2.150.0050.0309.18
5.2.140.0010.0349.18
5.2.130.0040.0299.14
5.2.120.0060.0269.14
5.2.110.0080.0359.15
5.2.100.0050.0289.14
5.2.90.0020.0329.14
5.2.80.0060.0289.14
5.2.70.0060.0299.14
5.2.60.0050.0309.09
5.2.50.0060.0289.05
5.2.40.0010.0329.04
5.2.30.0040.0369.02
5.2.20.0060.0279.00
5.2.10.0070.0278.93
5.2.00.0060.0378.78
5.1.60.0050.0248.07
5.1.50.0060.0238.06
5.1.40.0020.0268.04
5.1.30.0040.0278.40
5.1.20.0050.0268.42
5.1.10.0030.0318.14
5.1.00.0040.0268.14
5.0.50.0080.0166.62
5.0.40.0040.0186.47
5.0.30.0050.0326.29
5.0.20.0040.0226.26
5.0.10.0010.0256.24
5.0.00.0040.0306.23
4.4.90.0000.0184.78
4.4.80.0040.0144.76
4.4.70.0020.0164.75
4.4.60.0030.0154.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0020.0164.75
4.4.20.0030.0194.85
4.4.10.0030.0164.85
4.4.00.0030.0264.76
4.3.110.0030.0174.67
4.3.100.0010.0174.67
4.3.90.0030.0144.64
4.3.80.0020.0254.58
4.3.70.0040.0174.63
4.3.60.0020.0154.63
4.3.50.0010.0174.63
4.3.40.0050.0224.53
4.3.30.0030.0153.29
4.3.20.0030.0193.27
4.3.10.0040.0143.22
4.3.00.0230.0207.29

preferences:
141.81 ms | 1398 KiB | 7 Q