3v4l.org

run code in 300+ PHP versions simultaneously
<?php $input = array(1,2,3,4,5); array_keys($input)[0]

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)
5.4.340.0100.03611.97
5.4.320.0040.04012.46
5.4.310.0050.03812.46
5.4.300.0070.03512.47
5.4.290.0050.03812.46
5.4.280.0080.03512.36
5.4.270.0070.03812.36
5.4.260.0070.04012.36
5.4.250.0050.03812.36
5.4.240.0070.03412.36
5.4.230.0050.03812.35
5.4.220.0040.03712.35
5.4.210.0100.03912.35
5.4.200.0090.03312.35
5.4.190.0020.03912.35
5.4.180.0060.03412.35
5.4.170.0040.03712.36
5.4.160.0100.03512.36
5.4.150.0040.03812.35
5.4.140.0050.03912.04
5.4.130.0040.03812.02
5.4.120.0060.03611.98
5.4.110.0040.03811.98
5.4.100.0070.03411.98
5.4.90.0040.04011.98
5.4.80.0040.03811.98
5.4.70.0070.03911.98
5.4.60.0080.03611.98
5.4.50.0040.04011.97
5.4.40.0080.03711.96
5.4.30.0110.03111.96
5.4.20.0040.04211.96
5.4.10.0130.04011.96
5.4.00.0030.03811.46
5.3.290.0100.04512.80
5.3.280.0100.03912.71
5.3.270.0060.03812.72
5.3.260.0070.03712.71
5.3.250.0040.03812.72
5.3.240.0050.03712.72
5.3.230.0080.03512.71
5.3.220.0070.03912.68
5.3.210.0090.04312.68
5.3.200.0050.03812.68
5.3.190.0050.04212.68
5.3.180.0110.03612.67
5.3.170.0080.04812.67
5.3.160.0040.03912.67
5.3.150.0100.03912.67
5.3.140.0060.03712.66
5.3.130.0100.04512.66
5.3.120.0060.03812.66
5.3.110.0070.04012.66
5.3.100.0080.04612.12
5.3.90.0130.04012.09
5.3.80.0050.04412.07
5.3.70.0090.03912.08
5.3.60.0100.03612.07
5.3.50.0110.03512.00
5.3.40.0050.04812.00
5.3.30.0030.03711.95
5.3.20.0070.03411.72
5.3.10.0040.03911.70
5.3.00.0050.04211.68
5.2.170.0050.0309.19
5.2.160.0010.0339.18
5.2.150.0100.0309.18
5.2.140.0060.0309.18
5.2.130.0030.0319.14
5.2.120.0040.0299.14
5.2.110.0070.0289.14
5.2.100.0040.0289.14
5.2.90.0070.0369.14
5.2.80.0050.0389.14
5.2.70.0040.0439.14
5.2.60.0040.0349.09
5.2.50.0100.0329.06
5.2.40.0040.0319.04
5.2.30.0090.0369.01
5.2.20.0060.0349.00
5.2.10.0050.0278.93
5.2.00.0040.0338.78
5.1.60.0060.0248.07
5.1.50.0020.0278.07
5.1.40.0030.0268.05
5.1.30.0040.0278.40
5.1.20.0030.0288.41
5.1.10.0050.0258.14
5.1.00.0050.0288.15
5.0.50.0030.0206.63
5.0.40.0050.0176.48
5.0.30.0020.0336.29
5.0.20.0030.0196.26
5.0.10.0050.0226.25
5.0.00.0040.0306.23
4.4.90.0030.0164.78
4.4.80.0040.0154.76
4.4.70.0060.0134.75
4.4.60.0020.0164.75
4.4.50.0040.0144.77
4.4.40.0040.0264.71
4.4.30.0040.0154.76
4.4.20.0060.0154.84
4.4.10.0010.0184.85
4.4.00.0010.0264.76
4.3.110.0050.0134.67
4.3.100.0020.0164.66
4.3.90.0030.0164.63
4.3.80.0050.0274.59
4.3.70.0070.0164.63
4.3.60.0030.0144.62
4.3.50.0050.0214.63
4.3.40.0060.0254.54
4.3.30.0020.0173.28
4.3.20.0040.0153.26
4.3.10.0020.0163.21
4.3.00.0000.0237.19

preferences:
152.34 ms | 1394 KiB | 7 Q