3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = [1, 2, 3]; $b = [4, 5, 6]; var_dump(array_merge($a, $b);

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)
5.4.340.0080.03912.01
5.4.320.0090.04712.50
5.4.310.0130.04612.50
5.4.300.0080.05112.50
5.4.290.0110.04812.49
5.4.280.0100.04612.39
5.4.270.0060.04812.39
5.4.260.0110.04812.39
5.4.250.0090.04112.39
5.4.240.0090.03712.39
5.4.230.0050.04612.38
5.4.220.0070.04312.38
5.4.210.0100.03712.38
5.4.200.0170.07212.38
5.4.190.0140.05812.38
5.4.180.0090.04812.38
5.4.170.0110.03412.39
5.4.160.0090.03612.38
5.4.150.0030.04312.38
5.4.140.0080.04212.07
5.4.130.0040.04012.05
5.4.120.0100.03412.02
5.4.110.0040.04212.01
5.4.100.0090.03512.02
5.4.90.0160.04512.01
5.4.80.0170.05612.01
5.4.70.0120.05312.01
5.4.60.0060.04012.01
5.4.50.0120.03812.01
5.4.40.0140.05712.00
5.4.30.0060.04211.99
5.4.20.0060.04011.99
5.4.10.0050.04111.99
5.4.00.0080.03711.48
5.3.290.0110.04812.80
5.3.280.0090.04212.71
5.3.270.0090.05312.73
5.3.260.0100.04112.72
5.3.250.0080.03812.72
5.3.240.0080.03912.72
5.3.230.0080.04212.71
5.3.220.0090.04512.68
5.3.210.0100.06012.68
5.3.200.0150.04612.68
5.3.190.0100.04812.67
5.3.180.0060.04112.67
5.3.170.0070.04012.67
5.3.160.0050.03812.67
5.3.150.0070.04312.67
5.3.140.0050.04012.66
5.3.130.0130.04112.66
5.3.120.0110.03812.66
5.3.110.0080.04912.66
5.3.100.0150.04212.12
5.3.90.0090.05012.08
5.3.80.0080.04812.07
5.3.70.0110.04612.07
5.3.60.0110.04612.06
5.3.50.0120.03912.00
5.3.40.0050.03712.00
5.3.30.0080.03311.95
5.3.20.0050.03711.72
5.3.10.0110.03111.70
5.3.00.0050.04011.68
5.2.170.0050.0329.18
5.2.160.0040.0339.18
5.2.150.0040.0309.18
5.2.140.0050.0309.18
5.2.130.0070.0309.15
5.2.120.0130.0449.14
5.2.110.0070.0339.14
5.2.100.0040.0319.14
5.2.90.0070.0289.14
5.2.80.0060.0369.14
5.2.70.0040.0359.14
5.2.60.0050.0339.09
5.2.50.0090.0329.05
5.2.40.0070.0299.03
5.2.30.0050.0419.01
5.2.20.0100.0309.00
5.2.10.0100.0298.93
5.2.00.0080.0278.78
5.1.60.0030.0278.06
5.1.50.0040.0258.06
5.1.40.0060.0298.04
5.1.30.0080.0308.39
5.1.20.0010.0308.42
5.1.10.0070.0258.14
5.1.00.0030.0298.14
5.0.50.0050.0226.62
5.0.40.0040.0206.48
5.0.30.0050.0306.29
5.0.20.0020.0216.26
5.0.10.0030.0226.23
5.0.00.0030.0306.23
4.4.90.0030.0164.78
4.4.80.0040.0144.76
4.4.70.0010.0174.75
4.4.60.0020.0154.75
4.4.50.0020.0164.77
4.4.40.0020.0264.71
4.4.30.0040.0154.76
4.4.20.0020.0164.85
4.4.10.0090.0154.85
4.4.00.0030.0274.76
4.3.110.0030.0164.67
4.3.100.0040.0154.67
4.3.90.0030.0164.63
4.3.80.0010.0274.58
4.3.70.0080.0234.63
4.3.60.0040.0154.63
4.3.50.0040.0184.63
4.3.40.0020.0274.54
4.3.30.0030.0203.28
4.3.20.0000.0193.26
4.3.10.0020.0153.22
4.3.00.0070.0237.11

preferences:
142.9 ms | 1386 KiB | 7 Q