3v4l.org

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

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)
5.4.310.0040.04812.52
5.4.300.0100.03712.52
5.4.290.0070.03912.51
5.4.280.0110.04212.41
5.4.270.0050.03612.41
5.4.260.0070.04312.41
5.4.250.0050.04212.41
5.4.240.0090.04312.41
5.4.230.0090.04112.40
5.4.220.0050.03812.40
5.4.210.0080.04412.40
5.4.200.0060.03912.40
5.4.190.0080.04012.39
5.4.180.0070.04012.39
5.4.170.0060.03812.41
5.4.160.0060.03812.40
5.4.150.0090.04112.39
5.4.140.0060.03812.09
5.4.130.0040.03912.07
5.4.120.0080.04912.04
5.4.110.0070.03912.03
5.4.100.0080.03212.03
5.4.90.0110.03612.03
5.4.80.0050.03812.03
5.4.70.0020.04112.03
5.4.60.0120.03712.03
5.4.50.0090.03912.02
5.4.40.0080.03312.01
5.4.30.0050.03612.01
5.4.20.0080.04112.01
5.4.10.0070.04412.01
5.4.00.0040.04211.51
5.3.290.0040.04112.80
5.3.280.0100.03612.71
5.3.270.0100.03812.72
5.3.260.0100.04912.71
5.3.250.0040.04312.72
5.3.240.0050.03812.72
5.3.230.0100.03812.71
5.3.220.0050.04312.68
5.3.210.0070.03912.68
5.3.200.0110.03412.68
5.3.190.0050.03912.68
5.3.180.0060.04212.67
5.3.170.0090.03312.66
5.3.160.0100.03612.68
5.3.150.0070.04012.68
5.3.140.0030.04312.66
5.3.130.0090.04612.65
5.3.120.0060.04212.66
5.3.110.0120.04812.66
5.3.100.0060.03612.13
5.3.90.0040.03812.11
5.3.80.0040.03712.10
5.3.70.0060.04712.10
5.3.60.0080.04212.08
5.3.50.0080.03912.02
5.3.40.0060.03912.02
5.3.30.0070.04411.98
5.3.20.0070.03411.77
5.3.10.0010.04211.73
5.3.00.0070.03611.72
5.2.170.0040.0369.18
5.2.160.0060.0389.18
5.2.150.0040.0389.18
5.2.140.0060.0339.18
5.2.130.0100.0369.14
5.2.120.0070.0309.14
5.2.110.0080.0369.15
5.2.100.0050.0319.14
5.2.90.0070.0339.14
5.2.80.0060.0309.14
5.2.70.0060.0309.14
5.2.60.0050.0319.09
5.2.50.0040.0329.06
5.2.40.0060.0289.04
5.2.30.0060.0329.02
5.2.20.0080.0319.00
5.2.10.0050.0368.92
5.2.00.0080.0338.78
5.1.60.0040.0318.07
5.1.50.0070.0248.07
5.1.40.0080.0238.05
5.1.30.0020.0298.40
5.1.20.0070.0358.42
5.1.10.0060.0258.14
5.1.00.0070.0308.14
5.0.50.0050.0246.62
5.0.40.0050.0246.48
5.0.30.0050.0376.29
5.0.20.0030.0216.26
5.0.10.0040.0276.24
5.0.00.0040.0346.23
4.4.90.0020.0224.78
4.4.80.0040.0184.76
4.4.70.0040.0184.76
4.4.60.0020.0164.76
4.4.50.0020.0204.77
4.4.40.0070.0264.71
4.4.30.0060.0164.76
4.4.20.0030.0164.84
4.4.10.0010.0174.85
4.4.00.0000.0344.76
4.3.110.0060.0184.67
4.3.100.0030.0184.66
4.3.90.0030.0184.64
4.3.80.0040.0234.58
4.3.70.0050.0204.63
4.3.60.0010.0164.63
4.3.50.0030.0224.63
4.3.40.0040.0284.54
4.3.30.0050.0253.29
4.3.20.0020.0223.26
4.3.10.0020.0183.22
4.3.00.0000.01715.92

preferences:
142.38 ms | 1386 KiB | 7 Q