3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = array('a' => 'a', 'b' => 'b', 'c' => 'c'); $oldKey = 'b'; $newKey = 'new'; array_splice($arr, 1, 1, array($newKey => $arr[$oldKey]))

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)
5.4.320.0060.03712.47
5.4.310.0050.03912.46
5.4.300.0020.04112.47
5.4.290.0060.03712.46
5.4.280.0040.03612.36
5.4.270.0060.03712.36
5.4.260.0040.03912.36
5.4.250.0070.04912.36
5.4.240.0050.04112.36
5.4.230.0110.03712.35
5.4.220.0090.03612.35
5.4.210.0050.03912.35
5.4.200.0040.04012.35
5.4.190.0060.04112.34
5.4.180.0040.03712.35
5.4.170.0070.03412.36
5.4.160.0080.04212.35
5.4.150.0080.03712.35
5.4.140.0050.04312.04
5.4.130.0070.03712.02
5.4.120.0070.04011.98
5.4.110.0060.03611.98
5.4.100.0060.04011.98
5.4.90.0070.04111.98
5.4.80.0090.03911.98
5.4.70.0110.03811.97
5.4.60.0070.04011.98
5.4.50.0110.03611.98
5.4.40.0050.03911.96
5.4.30.0040.04211.96
5.4.20.0080.03611.96
5.4.10.0090.03511.96
5.4.00.0030.03911.45
5.3.290.0080.04012.80
5.3.280.0070.03812.71
5.3.270.0070.04212.72
5.3.260.0100.04012.71
5.3.250.0060.03912.72
5.3.240.0030.04012.71
5.3.230.0110.04212.71
5.3.220.0100.04512.68
5.3.210.0130.04312.68
5.3.200.0060.04012.68
5.3.190.0080.04512.68
5.3.180.0030.04312.67
5.3.170.0090.03712.66
5.3.160.0070.03812.67
5.3.150.0060.04212.67
5.3.140.0060.04812.66
5.3.130.0080.04112.66
5.3.120.0080.03912.66
5.3.110.0070.04212.66
5.3.100.0080.03812.12
5.3.90.0110.03912.08
5.3.80.0070.03912.07
5.3.70.0080.04212.08
5.3.60.0110.04312.06
5.3.50.0110.03412.00
5.3.40.0050.03812.00
5.3.30.0080.04611.95
5.3.20.0060.03711.73
5.3.10.0080.03711.70
5.3.00.0080.04411.68
5.2.170.0050.0319.18
5.2.160.0060.0369.18
5.2.150.0040.0339.18
5.2.140.0020.0329.18
5.2.130.0070.0359.14
5.2.120.0040.0329.14
5.2.110.0050.0309.15
5.2.100.0060.0349.14
5.2.90.0040.0389.14
5.2.80.0090.0309.14
5.2.70.0080.0329.14
5.2.60.0080.0269.10
5.2.50.0070.0329.06
5.2.40.0090.0369.04
5.2.30.0070.0319.01
5.2.20.0080.0339.01
5.2.10.0030.0318.93
5.2.00.0050.0398.78
5.1.60.0030.0318.07
5.1.50.0040.0328.07
5.1.40.0050.0298.05
5.1.30.0090.0268.40
5.1.20.0020.0348.42
5.1.10.0080.0338.14
5.1.00.0040.0318.14
5.0.50.0070.0236.63
5.0.40.0030.0256.49
5.0.30.0040.0316.29
5.0.20.0060.0206.26
5.0.10.0030.0256.25
5.0.00.0050.0306.23
4.4.90.0030.0164.78
4.4.80.0040.0144.76
4.4.70.0030.0174.75
4.4.60.0020.0174.76
4.4.50.0040.0154.77
4.4.40.0020.0264.71
4.4.30.0060.0214.76
4.4.20.0030.0154.85
4.4.10.0020.0204.85
4.4.00.0030.0244.76
4.3.110.0030.0164.67
4.3.100.0010.0174.66
4.3.90.0030.0164.64
4.3.80.0060.0234.59
4.3.70.0030.0144.63
4.3.60.0010.0164.63
4.3.50.0020.0164.63
4.3.40.0020.0254.53
4.3.30.0010.0213.29
4.3.20.0010.0203.26
4.3.10.0020.0213.22
4.3.00.0030.01716.72

preferences:
137.52 ms | 1398 KiB | 7 Q