3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = str_split('This is a string!'); $i = 0; var_dump(array_map(function($val, $key) { return ($key % 2 ? $val : null); }, $string);

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)
5.4.310.0080.03812.52
5.4.300.0070.04712.52
5.4.290.0090.04112.51
5.4.280.0060.03812.41
5.4.270.0050.04312.41
5.4.260.0050.03712.41
5.4.250.0090.03912.41
5.4.240.0070.04612.41
5.4.230.0060.04312.40
5.4.220.0040.04012.40
5.4.210.0070.04212.40
5.4.200.0090.04112.40
5.4.190.0080.04212.40
5.4.180.0080.04312.40
5.4.170.0080.03812.40
5.4.160.0070.03612.40
5.4.150.0060.04212.39
5.4.140.0050.04112.09
5.4.130.0080.04312.07
5.4.120.0070.03412.03
5.4.110.0050.03812.03
5.4.100.0070.03212.03
5.4.90.0090.04312.03
5.4.80.0070.04312.03
5.4.70.0050.03612.03
5.4.60.0060.03512.03
5.4.50.0080.03912.03
5.4.40.0070.03812.01
5.4.30.0100.03512.01
5.4.20.0040.03812.01
5.4.10.0050.03612.01
5.4.00.0050.03611.50
5.3.290.0100.03712.80
5.3.280.0050.04412.71
5.3.270.0070.04712.72
5.3.260.0090.03812.72
5.3.250.0050.04212.72
5.3.240.0070.03912.72
5.3.230.0080.04212.71
5.3.220.0050.04012.68
5.3.210.0070.04112.68
5.3.200.0070.04512.68
5.3.190.0070.04412.68
5.3.180.0070.04212.68
5.3.170.0060.04312.67
5.3.160.0080.03612.67
5.3.150.0070.04412.67
5.3.140.0090.03812.66
5.3.130.0080.04212.66
5.3.120.0070.04012.66
5.3.110.0060.04512.66
5.3.100.0070.03812.12
5.3.90.0090.03912.11
5.3.80.0050.04012.10
5.3.70.0070.03612.09
5.3.60.0040.03912.08
5.3.50.0040.04312.02
5.3.40.0050.03812.02
5.3.30.0060.03611.98
5.3.20.0040.04111.76
5.3.10.0070.03711.73
5.3.00.0070.04111.72
5.2.170.0040.0329.18
5.2.160.0060.0309.18
5.2.150.0040.0309.18
5.2.140.0050.0309.18
5.2.130.0060.0319.14
5.2.120.0040.0319.14
5.2.110.0020.0319.15
5.2.100.0030.0329.14
5.2.90.0050.0319.14
5.2.80.0020.0329.14
5.2.70.0040.0309.14
5.2.60.0050.0309.09
5.2.50.0040.0379.06
5.2.40.0060.0309.04
5.2.30.0070.0309.01
5.2.20.0050.0329.01
5.2.10.0050.0308.92
5.2.00.0040.0338.78
5.1.60.0050.0288.07
5.1.50.0050.0278.06
5.1.40.0030.0308.05
5.1.30.0040.0328.40
5.1.20.0050.0308.42
5.1.10.0050.0298.14
5.1.00.0050.0318.14
5.0.50.0040.0206.62
5.0.40.0020.0216.48
5.0.30.0040.0346.29
5.0.20.0020.0216.26
5.0.10.0040.0196.24
5.0.00.0030.0306.23
4.4.90.0020.0164.78
4.4.80.0040.0164.75
4.4.70.0040.0164.75
4.4.60.0040.0144.75
4.4.50.0020.0174.77
4.4.40.0040.0234.71
4.4.30.0030.0214.76
4.4.20.0040.0144.84
4.4.10.0040.0204.85
4.4.00.0020.0324.76
4.3.110.0040.0164.67
4.3.100.0040.0234.66
4.3.90.0020.0164.63
4.3.80.0020.0274.58
4.3.70.0040.0164.63
4.3.60.0030.0194.63
4.3.50.0040.0214.63
4.3.40.0040.0274.54
4.3.30.0040.0193.29
4.3.20.0040.0203.27
4.3.10.0020.0153.22
4.3.00.0200.01315.92

preferences:
135.89 ms | 1398 KiB | 7 Q