3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ['a', 2 => 'c']; var_dump(array_merge($a, ['d', 'e'));

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)
5.4.310.0050.04812.49
5.4.300.0080.04012.49
5.4.290.0130.03312.49
5.4.280.0060.04012.39
5.4.270.0050.03712.39
5.4.260.0060.05112.39
5.4.250.0050.04012.39
5.4.240.0080.04012.39
5.4.230.0080.04012.38
5.4.220.0070.04412.38
5.4.210.0040.04112.38
5.4.200.0070.04712.38
5.4.190.0090.04612.38
5.4.180.0070.04412.38
5.4.170.0060.03912.38
5.4.160.0090.03912.38
5.4.150.0020.04212.38
5.4.140.0050.04912.07
5.4.130.0080.04212.05
5.4.120.0110.03512.01
5.4.110.0060.04412.01
5.4.100.0080.04512.01
5.4.90.0080.04812.01
5.4.80.0050.06412.02
5.4.70.0100.04212.01
5.4.60.0110.04712.00
5.4.50.0090.03412.00
5.4.40.0060.03512.00
5.4.30.0060.03711.99
5.4.20.0040.03811.98
5.4.10.0080.03611.99
5.4.00.0080.05411.48
5.3.280.0060.04112.71
5.3.270.0080.04912.72
5.3.260.0080.05612.71
5.3.250.0050.04112.72
5.3.240.0080.03612.72
5.3.230.0040.04112.71
5.3.220.0080.04112.68
5.3.210.0090.06112.68
5.3.200.0050.04512.68
5.3.190.0050.03912.68
5.3.180.0080.05012.68
5.3.170.0110.03712.67
5.3.160.0170.08112.67
5.3.150.0080.03612.68
5.3.140.0100.07012.66
5.3.130.0060.04012.66
5.3.120.0070.04412.66
5.3.110.0080.03812.65
5.3.100.0080.05012.12
5.3.90.0100.03812.08
5.3.80.0090.03912.07
5.3.70.0090.05412.07
5.3.60.0080.03512.07
5.3.50.0080.05012.00
5.3.40.0050.06112.00
5.3.30.0120.05411.95
5.3.20.0140.05611.72
5.3.10.0090.05111.70
5.3.00.0100.04811.68
5.2.170.0090.0409.18
5.2.160.0060.0369.18
5.2.150.0080.0289.18
5.2.140.0030.0329.18
5.2.130.0050.0299.14
5.2.120.0050.0289.14
5.2.110.0070.0289.15
5.2.100.0070.0269.14
5.2.90.0030.0329.14
5.2.80.0090.0269.14
5.2.70.0030.0329.14
5.2.60.0060.0329.09
5.2.50.0070.0349.05
5.2.40.0050.0319.03
5.2.30.0070.0319.02
5.2.20.0060.0319.00
5.2.10.0070.0268.93
5.2.00.0110.0278.79
5.1.60.0020.0268.07
5.1.50.0020.0288.06
5.1.40.0050.0248.05
5.1.30.0030.0358.40
5.1.20.0080.0268.41
5.1.10.0060.0248.14
5.1.00.0050.0268.14
5.0.50.0010.0276.62
5.0.40.0010.0216.48
5.0.30.0060.0316.30
5.0.20.0040.0206.27
5.0.10.0040.0196.24
5.0.00.0030.0316.23
4.4.90.0020.0164.78
4.4.80.0030.0154.75
4.4.70.0020.0184.76
4.4.60.0020.0174.75
4.4.50.0040.0144.77
4.4.40.0020.0264.71
4.4.30.0040.0144.76
4.4.20.0030.0164.84
4.4.10.0030.0154.85
4.4.00.0030.0254.76
4.3.110.0020.0164.67
4.3.100.0040.0144.66
4.3.90.0030.0144.63
4.3.80.0030.0254.58
4.3.70.0040.0134.63
4.3.60.0000.0174.63
4.3.50.0020.0174.63
4.3.40.0020.0254.54
4.3.30.0020.0163.29
4.3.20.0020.0163.26
4.3.10.0030.0183.22
4.3.00.0000.01315.90

preferences:
142.19 ms | 1394 KiB | 7 Q