3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(count(array_keys('foo', array('foo', 'bar', 'foo'), true));

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)
5.4.320.0080.03412.50
5.4.310.0080.04712.49
5.4.300.0080.04812.49
5.4.290.0040.04012.49
5.4.280.0090.03312.39
5.4.270.0090.04312.39
5.4.260.0050.03912.39
5.4.250.0020.04212.39
5.4.240.0070.04412.39
5.4.230.0080.03512.38
5.4.220.0040.03912.38
5.4.210.0100.03112.38
5.4.200.0040.03912.38
5.4.190.0060.03612.38
5.4.180.0070.03512.38
5.4.170.0040.03712.39
5.4.160.0090.03812.38
5.4.150.0090.04512.38
5.4.140.0080.04812.07
5.4.130.0040.03612.05
5.4.120.0050.03612.02
5.4.110.0040.04012.01
5.4.100.0070.04812.01
5.4.90.0070.03612.01
5.4.80.0060.03912.01
5.4.70.0060.03512.01
5.4.60.0070.03312.00
5.4.50.0020.03912.01
5.4.40.0050.03511.99
5.4.30.0080.03511.99
5.4.20.0050.03511.99
5.4.10.0060.03311.99
5.4.00.0030.03711.48
5.3.290.0030.04212.80
5.3.280.0060.03712.71
5.3.270.0060.03812.72
5.3.260.0050.03912.72
5.3.250.0070.03512.72
5.3.240.0040.05012.72
5.3.230.0080.04812.71
5.3.220.0070.05212.68
5.3.210.0040.04312.68
5.3.200.0080.03612.68
5.3.190.0050.04112.68
5.3.180.0050.03712.68
5.3.170.0030.03912.67
5.3.160.0050.03612.67
5.3.150.0060.03712.68
5.3.140.0070.04612.66
5.3.130.0040.04612.66
5.3.120.0070.04612.65
5.3.110.0060.03912.66
5.3.100.0040.03812.12
5.3.90.0040.03712.08
5.3.80.0080.03312.07
5.3.70.0070.03412.08
5.3.60.0050.03812.06
5.3.50.0050.03612.00
5.3.40.0050.03612.00
5.3.30.0070.03411.95
5.3.20.0060.03511.72
5.3.10.0070.03311.70
5.3.00.0040.03711.68
5.2.170.0030.0429.19
5.2.160.0050.0349.18
5.2.150.0040.0309.19
5.2.140.0070.0319.18
5.2.130.0070.0289.14
5.2.120.0020.0319.14
5.2.110.0070.0259.15
5.2.100.0020.0309.14
5.2.90.0040.0299.14
5.2.80.0070.0379.14
5.2.70.0100.0379.14
5.2.60.0070.0279.09
5.2.50.0040.0309.06
5.2.40.0030.0299.04
5.2.30.0050.0289.01
5.2.20.0030.0339.00
5.2.10.0050.0268.93
5.2.00.0030.0298.78
5.1.60.0050.0228.07
5.1.50.0020.0268.07
5.1.40.0010.0288.04
5.1.30.0030.0278.40
5.1.20.0050.0258.42
5.1.10.0030.0278.14
5.1.00.0010.0288.14
5.0.50.0050.0186.62
5.0.40.0050.0176.48
5.0.30.0030.0316.29
5.0.20.0020.0206.27
5.0.10.0030.0196.24
5.0.00.0030.0306.23
4.4.90.0040.0194.78
4.4.80.0050.0144.76
4.4.70.0020.0154.75
4.4.60.0040.0144.75
4.4.50.0050.0134.77
4.4.40.0050.0234.71
4.4.30.0040.0194.76
4.4.20.0030.0164.84
4.4.10.0050.0194.85
4.4.00.0050.0254.75
4.3.110.0040.0194.66
4.3.100.0050.0124.67
4.3.90.0040.0134.64
4.3.80.0030.0244.59
4.3.70.0020.0164.63
4.3.60.0010.0164.63
4.3.50.0020.0164.63
4.3.40.0040.0224.54
4.3.30.0020.0163.29
4.3.20.0030.0153.26
4.3.10.0010.0163.21
4.3.00.0000.01718.23

preferences:
140.83 ms | 1386 KiB | 7 Q