3v4l.org

run code in 300+ PHP versions simultaneously
<?php var $a = array(); echo empty($a['a']);

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)
5.4.350.0100.03412.01
5.4.340.0070.03512.01
5.4.320.0080.03812.50
5.4.310.0100.03712.50
5.4.300.0090.05612.50
5.4.290.0090.05012.49
5.4.280.0130.04412.39
5.4.270.0090.05112.39
5.4.260.0100.05512.39
5.4.250.0050.04012.39
5.4.240.0080.04112.39
5.4.230.0100.04912.38
5.4.220.0070.04312.38
5.4.210.0070.04912.38
5.4.200.0110.03912.38
5.4.190.0100.04612.38
5.4.180.0100.04512.38
5.4.170.0090.04412.39
5.4.160.0110.03812.38
5.4.150.0080.03612.38
5.4.140.0050.04012.07
5.4.130.0040.04012.05
5.4.120.0050.04012.01
5.4.110.0070.03612.02
5.4.100.0120.04212.01
5.4.90.0060.05212.01
5.4.80.0090.05312.01
5.4.70.0090.04812.01
5.4.60.0110.04412.01
5.4.50.0080.04812.01
5.4.40.0070.03612.00
5.4.30.0060.03811.99
5.4.20.0090.03611.99
5.4.10.0080.04111.99
5.4.00.0080.04911.48
5.3.290.0100.04312.80
5.3.280.0080.03812.71
5.3.270.0070.05012.72
5.3.260.0110.04212.72
5.3.250.0060.03812.72
5.3.240.0070.04012.72
5.3.230.0080.03912.71
5.3.220.0060.04512.68
5.3.210.0060.04412.68
5.3.200.0080.03912.68
5.3.190.0080.04112.68
5.3.180.0070.04912.67
5.3.170.0060.04112.67
5.3.160.0080.03612.67
5.3.150.0060.04212.67
5.3.140.0060.03912.66
5.3.130.0080.05112.66
5.3.120.0050.04112.66
5.3.110.0070.03912.66
5.3.100.0090.03612.12
5.3.90.0090.03412.08
5.3.80.0060.03912.07
5.3.70.0060.03612.07
5.3.60.0050.04112.06
5.3.50.0090.04112.00
5.3.40.0070.04412.00
5.3.30.0060.03711.95
5.3.20.0080.03311.73
5.3.10.0080.03511.70
5.3.00.0060.05111.68
5.2.170.0070.0299.18
5.2.160.0080.0299.18
5.2.150.0070.0399.18
5.2.140.0080.0349.18
5.2.130.0060.0339.14
5.2.120.0070.0279.13
5.2.110.0090.0309.14
5.2.100.0060.0289.14
5.2.90.0060.0299.14
5.2.80.0070.0379.13
5.2.70.0060.0419.14
5.2.60.0070.0399.09
5.2.50.0030.0329.06
5.2.40.0070.0389.03
5.2.30.0060.0399.02
5.2.20.0060.0299.00
5.2.10.0090.0388.93
5.2.00.0060.0418.78
5.1.60.0090.0308.07
5.1.50.0060.0338.06
5.1.40.0040.0368.05
5.1.30.0070.0288.39
5.1.20.0050.0308.42
5.1.10.0080.0238.14
5.1.00.0080.0248.14
5.0.50.0040.0226.62
5.0.40.0040.0196.48
5.0.30.0040.0326.30
5.0.20.0060.0176.26
5.0.10.0030.0226.23
5.0.00.0050.0306.23
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0020.0204.76
4.4.60.0040.0184.75
4.4.50.0040.0174.77
4.4.40.0050.0254.71
4.4.30.0030.0184.76
4.4.20.0050.0154.84
4.4.10.0060.0144.85
4.4.00.0040.0284.76
4.3.110.0050.0214.67
4.3.100.0000.0204.67
4.3.90.0020.0184.64
4.3.80.0050.0264.58
4.3.70.0040.0164.63
4.3.60.0070.0134.63
4.3.50.0050.0154.63
4.3.40.0030.0244.54
4.3.30.0030.0163.54
4.3.20.0040.0153.54
4.3.10.0030.0153.54
4.3.00.0000.02013.38

preferences:
144.33 ms | 1394 KiB | 7 Q