3v4l.org

run code in 300+ PHP versions simultaneously
<?php function cluster($array) { $array = array_reverse($array); foreach($array as $element) { $newarray = isset($newarray) ? [$element] : [$newarray] } return $newarray; } var_dump(cluster(['A', 'B', 'C', 'D','E','F','G','H','I']);

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)
5.4.340.0040.03512.03
5.4.320.0050.03612.52
5.4.310.0070.04212.51
5.4.300.0040.04412.52
5.4.290.0080.04212.51
5.4.280.0030.03812.41
5.4.270.0040.03812.41
5.4.260.0110.03212.41
5.4.250.0050.03812.41
5.4.240.0040.03812.41
5.4.230.0080.03512.40
5.4.220.0040.03812.40
5.4.210.0070.03512.40
5.4.200.0080.03612.40
5.4.190.0070.03512.39
5.4.180.0050.03512.40
5.4.170.0060.04212.40
5.4.160.0100.04512.40
5.4.150.0060.03612.39
5.4.140.0060.04312.09
5.4.130.0050.03812.07
5.4.120.0060.03412.04
5.4.110.0060.04112.03
5.4.100.0030.03712.03
5.4.90.0050.03612.03
5.4.80.0060.03512.03
5.4.70.0060.03912.02
5.4.60.0040.03612.03
5.4.50.0030.03912.03
5.4.40.0030.03712.02
5.4.30.0090.03212.01
5.4.20.0060.03512.01
5.4.10.0080.03312.02
5.4.00.0040.03811.50
5.3.290.0080.04312.80
5.3.280.0070.03812.71
5.3.270.0070.04912.72
5.3.260.0050.03912.72
5.3.250.0060.03612.71
5.3.240.0070.03612.71
5.3.230.0060.03812.71
5.3.220.0120.04112.68
5.3.210.0040.04212.68
5.3.200.0100.03312.68
5.3.190.0060.03712.67
5.3.180.0060.03512.67
5.3.170.0120.04012.67
5.3.160.0080.04312.67
5.3.150.0050.03712.67
5.3.140.0060.03612.66
5.3.130.0020.04312.66
5.3.120.0070.03712.66
5.3.110.0050.04112.66
5.3.100.0060.03612.14
5.3.90.0040.03712.11
5.3.80.0040.04012.09
5.3.70.0060.04112.09
5.3.60.0070.04012.08
5.3.50.0090.03912.02
5.3.40.0070.03812.02
5.3.30.0040.03611.98
5.3.20.0090.03111.76
5.3.10.0040.03511.73
5.3.00.0050.03611.72
5.2.170.0030.0459.22
5.2.160.0030.0309.21
5.2.150.0110.0299.22
5.2.140.0060.0379.21
5.2.130.0080.0419.18
5.2.120.0010.0319.18
5.2.110.0110.0259.18
5.2.100.0030.0329.18
5.2.90.0030.0349.18
5.2.80.0030.0319.17
5.2.70.0070.0279.18
5.2.60.0090.0269.13
5.2.50.0060.0289.10
5.2.40.0020.0319.07
5.2.30.0050.0299.05
5.2.20.0060.0359.04
5.2.10.0030.0288.95
5.2.00.0030.0358.80
5.1.60.0050.0288.09
5.1.50.0050.0258.09
5.1.40.0040.0258.06
5.1.30.0050.0248.42
5.1.20.0030.0278.44
5.1.10.0050.0248.16
5.1.00.0040.0258.17
5.0.50.0030.0246.64
5.0.40.0030.0196.50
5.0.30.0030.0326.31
5.0.20.0020.0216.29
5.0.10.0010.0226.26
5.0.00.0040.0306.25
4.4.90.0050.0134.78
4.4.80.0040.0234.75
4.4.70.0030.0154.76
4.4.60.0030.0144.76
4.4.50.0050.0174.77
4.4.40.0040.0234.71
4.4.30.0030.0154.76
4.4.20.0030.0154.84
4.4.10.0020.0164.85
4.4.00.0030.0244.76
4.3.110.0020.0164.67
4.3.100.0040.0134.67
4.3.90.0040.0134.64
4.3.80.0020.0244.59
4.3.70.0010.0154.63
4.3.60.0030.0144.63
4.3.50.0020.0164.63
4.3.40.0050.0304.54
4.3.30.0020.0223.30
4.3.20.0010.0173.27
4.3.10.0000.0173.24
4.3.00.0030.0237.21

preferences:
139.05 ms | 1398 KiB | 7 Q