3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(); $l = 10000; for($i = 0; $i< $l; $i++) { $array[$i] = md5($i); } $copy = $array; $start = microtime(true); for($i = 0; $i< $l; $i++) { $copy[$i] = $copy[$i] . ' x'; } echo "\nfor:" . microtime(true) - $start; $copy = $array; $start = microtime(true); foreach ($copy as $i => $item) { $copy[$i] = $item . ' x'; } echo "\nforeach (ohne ref):" . (microtime(true) - $start); $copy = $array; $start = microtime(true); foreach ($copy as &$item) { $item .= ' x'; } echo "\nforeach (mit ref):" . (microtime(true) - $start); $copy = $array; $start = microtime(true); array_walk($copy, function (&$item, $i) { $item .= ' x'; }); echo "\narray_walk (mit ref):" . (microtime(true) - $start); $copy = $array; $start = microtime(true); $copy = array_map(function ($item) { $item .= ' x'; }, $copy); echo "\narray_map (mit ref):" . (microtime(true) - $start);

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)
7.4.00.0100.02016.77
7.3.120.0100.02316.92
7.3.110.0130.01616.88
7.3.100.0030.02116.93
7.3.90.0070.01116.75
7.3.80.0070.01016.49
7.3.70.0070.01616.79
7.3.60.0130.01016.74
7.3.50.0100.01016.82
7.3.40.0070.01616.71
7.3.30.0100.01616.79
7.3.20.0000.01618.48
7.3.10.0030.01618.74
7.3.00.0030.01618.80
7.2.250.0070.02316.92
7.2.240.0000.03316.96
7.2.230.0160.00917.13
7.2.220.0070.01416.94
7.2.210.0090.01617.24
7.2.200.0130.01317.03
7.2.190.0120.00617.10
7.2.180.0030.02016.68
7.2.170.0100.01016.89
7.2.00.0040.01221.57
7.1.330.0100.01717.54
7.1.320.0000.02217.67
7.1.310.0000.01917.96
7.1.300.0030.02117.58
7.1.290.0060.01617.70
7.1.280.0070.02117.93
7.1.270.0040.02117.40
7.1.260.0000.02617.55
7.1.70.0070.01619.16
7.1.60.0100.02019.29
7.1.50.0030.03318.51
7.1.00.0030.08024.34
7.0.200.0040.01218.86
7.0.140.0000.07724.21
7.0.100.0170.09321.89
7.0.90.0200.08321.88
7.0.80.0200.08021.91
7.0.70.0100.09022.09
7.0.60.0230.07321.84
7.0.50.0030.08322.34
7.0.40.0130.07719.98
7.0.30.0100.09020.05
7.0.20.0130.05320.07
7.0.10.0100.09020.09
7.0.00.0030.08720.18
5.6.280.0070.09325.86
5.6.250.0230.09725.34
5.6.240.0100.11325.36
5.6.230.0130.10725.44
5.6.220.0170.08725.42
5.6.210.0130.09025.36
5.6.200.0100.08725.79
5.6.190.0300.08325.93
5.6.180.0170.11325.81
5.6.170.0070.08025.89
5.6.160.0130.10025.76
5.6.150.0130.09725.79
5.6.140.0200.09325.79
5.6.130.0170.09725.76
5.6.120.0030.11325.83
5.6.110.0170.10725.83
5.6.100.0100.10025.77
5.6.90.0170.11025.87
5.6.80.0130.09725.19
5.6.70.0030.09325.14
5.6.60.0070.09725.30
5.6.50.0030.07025.10
5.6.40.0070.11325.29
5.6.30.0100.09325.13
5.6.20.0130.10025.13
5.6.10.0270.08025.04
5.6.00.0100.10025.14
5.5.380.0100.08325.24
5.5.370.0100.10025.30
5.5.360.0070.10325.17
5.5.350.0100.11025.14
5.5.340.0070.10025.54
5.5.330.0170.10725.55
5.5.320.0100.10025.56
5.5.310.0230.06025.64
5.5.300.0200.09025.64
5.5.290.0130.09725.55
5.5.280.0100.11025.58
5.5.270.0070.06725.47
5.5.260.0070.08025.50
5.5.250.0030.07325.34
5.5.240.0100.10325.06
5.5.230.0030.11025.00
5.5.220.0070.11024.86
5.5.210.0270.08725.03
5.5.200.0030.08324.98
5.5.190.0070.10024.97
5.5.180.0100.07024.99
5.5.160.0070.11024.94
5.5.150.0030.11025.03
5.5.140.0000.09324.84
5.5.130.0030.10725.02
5.5.120.0100.08325.03
5.5.110.0200.10024.75
5.5.100.0100.09324.89
5.5.90.0100.09324.85
5.5.80.0000.10324.82
5.5.70.0070.09724.81
5.5.60.0100.09724.91
5.5.50.0100.09724.84
5.5.40.0170.07324.82
5.5.30.0130.09024.90
5.5.20.0070.10024.79
5.5.10.0170.09724.88
5.5.00.0130.09724.86
5.4.450.0200.09324.14
5.4.440.0130.07324.22
5.4.430.0130.08724.00
5.4.420.0130.10724.07
5.4.410.0100.10323.79
5.4.400.0170.09023.58
5.4.390.0070.09723.80
5.4.380.0100.07023.86
5.4.370.0130.08023.75
5.4.360.0070.10023.87
5.4.350.0030.09323.73
5.4.340.0100.09723.75
5.4.320.0130.09723.71
5.4.310.0170.09323.55
5.4.300.0200.09323.54
5.4.290.0000.11023.64
5.4.280.0070.09023.75
5.4.270.0130.11323.70
5.4.260.0100.09723.80
5.4.250.0070.10323.57
5.4.240.0030.09323.63
5.4.230.0100.09723.57
5.4.220.0130.10023.90
5.4.210.0000.09023.71
5.4.200.0100.09323.73
5.4.190.0030.10723.77
5.4.180.0130.10323.58
5.4.170.0100.09723.71
5.4.160.0100.10023.69
5.4.150.0070.10723.70
5.4.140.0070.10021.09
5.4.130.0130.09021.08
5.4.120.0200.09321.13
5.4.110.0100.10021.10
5.4.100.0170.08721.16
5.4.90.0200.08721.16
5.4.80.0100.09021.01
5.4.70.0030.09321.06
5.4.60.0130.04721.02
5.4.50.0100.09321.04
5.4.40.0070.10321.09
5.4.30.0070.09721.04
5.4.20.0170.08720.98
5.4.10.0170.08321.17
5.4.00.0100.09720.55
5.3.290.0130.09319.21
5.3.280.0100.10019.10
5.3.270.0070.09719.18
5.3.260.0170.07319.18
5.3.250.0030.10719.02
5.3.240.0070.06319.09
5.3.230.0030.10319.06
5.3.220.0100.09719.06
5.3.210.0100.05019.13
5.3.200.0100.10019.05
5.3.190.0170.09719.09
5.3.180.0170.08719.14
5.3.170.0070.06319.02
5.3.160.0100.10318.98
5.3.150.0130.07719.16
5.3.140.0100.09319.12
5.3.130.0100.10319.18
5.3.120.0070.10318.96
5.3.110.0100.11019.04
5.3.100.0000.07018.56
5.3.90.0100.09318.48
5.3.80.0070.09318.48
5.3.70.0100.07318.43
5.3.60.0170.07718.49
5.3.50.0070.10318.34
5.3.40.0130.09018.34
5.3.30.0030.10018.41
5.3.20.0070.09318.09
5.3.10.0030.10718.17
5.3.00.0030.09018.03
5.2.170.0030.06312.11
5.2.160.0070.06012.11
5.2.150.0100.05712.11
5.2.140.0070.06312.11
5.2.130.0100.05012.11
5.2.120.0030.04712.11
5.2.110.0000.06312.11
5.2.100.0070.05312.11
5.2.90.0070.06012.11
5.2.80.0030.06312.11
5.2.70.0070.04712.11
5.2.60.0030.05312.11
5.2.50.0000.06712.11
5.2.40.0030.06712.11
5.2.30.0030.04712.11
5.2.20.0030.05712.11
5.2.10.0030.05012.11
5.2.00.0130.05012.11
5.1.60.0030.05012.11
5.1.50.0130.04312.11
5.1.40.0000.05012.11
5.1.30.0070.05712.11
5.1.20.0030.05712.11
5.1.10.0000.05712.11
5.1.00.0030.05712.11
5.0.50.0000.03712.11
5.0.40.0000.03312.11
5.0.30.0030.06312.11
5.0.20.0030.04312.11
5.0.10.0100.03012.11
5.0.00.0030.06012.11
4.4.90.0070.02312.11
4.4.80.0030.03712.11
4.4.70.0070.03012.11
4.4.60.0030.02012.11
4.4.50.0030.03312.11
4.4.40.0070.04712.11
4.4.30.0000.03012.11
4.4.20.0030.03312.11
4.4.10.0000.03312.11
4.4.00.0000.05312.11
4.3.110.0030.03712.11
4.3.100.0100.02312.11
4.3.90.0030.03312.11
4.3.80.0000.04012.11
4.3.70.0000.03712.11
4.3.60.0000.02712.11
4.3.50.0000.03712.11
4.3.40.0030.05312.11
4.3.30.0030.03712.11
4.3.20.0030.03012.11
4.3.10.0000.03712.11
4.3.00.0000.03312.11

preferences:
37.57 ms | 400 KiB | 5 Q