3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ["1" => 'foo']; var_dump(array_key_exists(1, $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)
5.4.340.0070.03712.01
5.4.320.0060.03512.50
5.4.310.0090.03512.49
5.4.300.0090.03312.50
5.4.290.0030.04012.49
5.4.280.0030.04112.39
5.4.270.0050.03912.39
5.4.260.0070.03612.39
5.4.250.0080.03612.39
5.4.240.0090.03312.39
5.4.230.0090.03612.38
5.4.220.0070.03512.38
5.4.210.0050.04112.38
5.4.200.0040.05112.38
5.4.190.0020.03912.38
5.4.180.0050.03612.38
5.4.170.0060.04012.39
5.4.160.0080.03612.38
5.4.150.0050.04012.38
5.4.140.0030.04012.07
5.4.130.0060.03712.05
5.4.120.0090.03312.02
5.4.110.0090.03412.01
5.4.100.0080.03412.01
5.4.90.0100.03712.01
5.4.80.0050.03912.01
5.4.70.0060.03412.00
5.4.60.0060.03312.00
5.4.50.0040.03612.01
5.4.40.0050.03512.00
5.4.30.0080.03711.99
5.4.20.0070.03511.99
5.4.10.0060.04011.99
5.4.00.0080.03411.48
5.3.290.0050.04012.80
5.3.280.0050.03912.71
5.3.270.0040.04012.73
5.3.260.0080.04012.72
5.3.250.0080.04012.72
5.3.240.0080.05012.72
5.3.230.0090.03412.71
5.3.220.0100.03412.68
5.3.210.0030.04112.68
5.3.200.0070.03512.68
5.3.190.0030.04012.68
5.3.180.0090.04012.67
5.3.170.0070.03612.67
5.3.160.0080.04112.68
5.3.150.0070.03612.67
5.3.140.0050.03612.66
5.3.130.0060.03812.66
5.3.120.0050.04012.66
5.3.110.0080.03912.66
5.3.100.0040.03912.12
5.3.90.0030.03912.08
5.3.80.0050.03712.08
5.3.70.0070.03512.07
5.3.60.0030.03912.07
5.3.50.0060.04912.00
5.3.40.0060.03912.00
5.3.30.0050.03511.95
5.3.20.0070.03511.72
5.3.10.0050.03611.70
5.3.00.0060.03611.68
5.2.170.0040.0329.18
5.2.160.0050.0319.18
5.2.150.0030.0339.18
5.2.140.0070.0319.18
5.2.130.0060.0349.14
5.2.120.0030.0329.14
5.2.110.0040.0309.14
5.2.100.0060.0309.14
5.2.90.0080.0309.14
5.2.80.0040.0329.14
5.2.70.0040.0329.14
5.2.60.0080.0319.09
5.2.50.0070.0319.05
5.2.40.0070.0279.04
5.2.30.0030.0399.01
5.2.20.0100.0279.01
5.2.10.0080.0258.92
5.2.00.0030.0328.78
5.1.60.0030.0268.06
5.1.50.0030.0308.06
5.1.40.0070.0248.05
5.1.30.0050.0308.40
5.1.20.0070.0238.42
5.1.10.0020.0318.14
5.1.00.0030.0288.14
5.0.50.0050.0186.62
5.0.40.0020.0216.48
5.0.30.0010.0356.29
5.0.20.0050.0176.27
5.0.10.0030.0206.23
5.0.00.0050.0356.23
4.4.90.0010.0174.77
4.4.80.0050.0134.76
4.4.70.0050.0214.75
4.4.60.0010.0194.75
4.4.50.0040.0164.77
4.4.40.0050.0294.71
4.4.30.0040.0144.76
4.4.20.0030.0154.85
4.4.10.0040.0144.85
4.4.00.0030.0264.76
4.3.110.0030.0154.67
4.3.100.0020.0164.66
4.3.90.0040.0194.63
4.3.80.0040.0254.58
4.3.70.0030.0134.63
4.3.60.0030.0154.63
4.3.50.0030.0154.63
4.3.40.0030.0244.54
4.3.30.0020.0203.29
4.3.20.0030.0203.26
4.3.10.0010.0173.21
4.3.00.0100.0237.50

preferences:
143.33 ms | 1394 KiB | 7 Q