3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(); $l = 100; for($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'; usleep(1); } echo "\nfor:" . (microtime(true) - $start); $copy = $array; $start = microtime(true); foreach ($copy as $i => $item) { $copy[$i] = $item . ' x'; usleep(1); } echo "\nforeach (ohne ref):" . (microtime(true) - $start); $copy = $array; $start = microtime(true); foreach ($copy as &$item) { $item .= ' x'; usleep(1); } echo "\nforeach (mit ref):" . (microtime(true) - $start); $copy = $array; $start = microtime(true); array_walk($copy, function (&$item, $i) { $item .= ' x'; usleep(1); }); echo "\narray_walk (mit ref):" . (microtime(true) - $start); $copy = $array; $start = microtime(true); $copy = array_map(function ($item) { usleep(1); return $item . ' x'; }, $copy); echo "\narray_map (ohne 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)
7.3.10.0210.00716.48
7.3.00.0140.00516.66
7.2.130.0110.00816.82
7.2.120.0150.00416.63
7.2.110.0230.01316.73
7.2.100.0140.01016.67
7.2.90.0170.00716.69
7.2.80.0570.01016.98
7.2.70.0260.00516.55
7.2.60.0080.01716.80
7.2.50.0260.00316.57
7.2.40.0130.00416.29
7.2.30.0280.01416.75
7.2.20.0390.00816.52
7.2.10.0660.00916.65
7.2.00.0200.00817.92
7.1.250.0110.01415.58
7.1.70.0030.00917.08
7.1.60.0000.01416.95
7.1.50.0180.00816.99
7.1.00.0070.05322.36
7.0.200.0060.00616.52
7.0.140.0100.07022.15
7.0.100.0200.05319.93
7.0.90.0200.05719.98
7.0.80.0270.07720.04
7.0.70.0100.06019.91
7.0.60.0170.07320.07
7.0.50.0200.07720.22
7.0.40.0070.07020.04
7.0.30.0130.07720.09
7.0.20.0070.08320.04
7.0.10.0100.06020.11
7.0.00.0070.09020.14
5.6.280.0000.08021.13
5.6.250.0130.07720.79
5.6.240.0130.07720.55
5.6.230.0130.08320.56
5.6.220.0100.08320.61
5.6.210.0100.07720.70
5.6.200.0070.08321.12
5.6.190.0130.06021.11
5.6.180.0130.07021.20
5.6.170.0130.04020.97
5.6.160.0170.07321.05
5.6.150.0000.06721.21
5.6.140.0130.07721.14
5.6.130.0030.09321.08
5.6.120.0070.09321.13
5.6.110.0170.04721.04
5.6.100.0100.07321.06
5.6.90.0000.05720.98
5.6.80.0130.06720.46
5.6.70.0100.07020.50
5.6.60.0200.04020.45
5.6.50.0100.08020.38
5.6.40.0000.09020.44
5.6.30.0030.04320.41
5.6.20.0170.04020.41
5.6.10.0130.07720.34
5.6.00.0100.07720.51
5.5.380.0030.08020.38
5.5.370.0070.06020.61
5.5.360.0100.08320.59
5.5.350.0100.07020.40
5.5.340.0200.06320.86
5.5.330.0100.08020.84
5.5.320.0170.07720.93
5.5.310.0100.08320.91
5.5.300.0100.04020.94
5.5.290.0130.07720.91
5.5.280.0200.07020.81
5.5.270.0100.07720.88
5.5.260.0130.06320.79
5.5.250.0130.03720.60
5.5.240.0100.09020.15
5.5.230.0130.05720.24
5.5.220.0170.07320.29
5.5.210.0000.08720.29
5.5.200.0030.09020.23
5.5.190.0130.05020.29
5.5.180.0130.07020.17
5.5.160.0030.08020.27
5.5.150.0070.04020.17
5.5.140.0070.04320.15
5.5.130.0070.04020.11
5.5.120.0130.03720.11
5.5.110.0070.04020.30
5.5.100.0000.04720.11
5.5.90.0030.04020.10
5.5.80.0000.04320.10
5.5.70.0030.04320.09
5.5.60.0070.03720.08
5.5.50.0130.03020.09
5.5.40.0130.03720.18
5.5.30.0030.04320.09
5.5.20.0070.04020.17
5.5.10.0130.03720.05
5.5.00.0030.04720.07
5.4.450.0130.04719.38
5.4.440.0070.06019.54
5.4.430.0100.04019.41
5.4.420.0100.08319.35
5.4.410.0070.05019.38
5.4.400.0170.07318.91
5.4.390.0130.07719.13
5.4.380.0070.08018.91
5.4.370.0100.07318.85
5.4.360.0130.06019.09
5.4.350.0100.07719.14
5.4.340.0130.04719.03
5.4.320.0100.07319.12
5.4.310.0030.05719.18
5.4.300.0100.06719.18
5.4.290.0030.04319.09
5.4.280.0030.04018.92
5.4.270.0100.03719.13
5.4.260.0070.04319.18
5.4.250.0030.04019.13
5.4.240.0070.03719.23
5.4.230.0000.04719.02
5.4.220.0030.05319.22
5.4.210.0030.04019.11
5.4.200.0030.04019.11
5.4.190.0000.04318.86
5.4.180.0030.04318.84
5.4.170.0130.03019.02
5.4.160.0100.03318.95
5.4.150.0130.03719.19
5.4.140.0030.04016.49
5.4.130.0000.04016.48
5.4.120.0000.04016.50
5.4.110.0030.03716.48
5.4.100.0130.02716.44
5.4.90.0000.04016.41
5.4.80.0000.04316.47
5.4.70.0070.04316.55
5.4.60.0100.03016.45
5.4.50.0030.07316.49
5.4.40.0070.05016.41
5.4.30.0070.07316.53
5.4.20.0130.06016.38
5.4.10.0070.08016.49
5.4.00.0030.04715.93
5.3.290.0070.05714.69
5.3.280.0000.04314.69
5.3.270.0030.04014.69
5.3.260.0070.04014.63
5.3.250.0070.03714.72
5.3.240.0030.04014.71
5.3.230.0070.03714.70
5.3.220.0100.03014.71
5.3.210.0000.04314.61
5.3.200.0070.03314.68
5.3.190.0030.04014.62
5.3.180.0070.03314.67
5.3.170.0000.03714.63
5.3.160.0070.07314.64
5.3.150.0130.07014.68
5.3.140.0170.06714.73
5.3.130.0170.06714.72
5.3.120.0070.08714.57
5.3.110.0100.07314.63
5.3.100.0100.07714.05
5.3.90.0070.07714.00
5.3.80.0000.08014.15
5.3.70.0070.08014.13
5.3.60.0030.05314.08
5.3.50.0070.07713.94
5.3.40.0130.07014.02
5.3.30.0030.05714.05
5.3.20.0030.07713.68
5.3.10.0070.07313.73
5.3.00.0030.07313.75
5.2.170.0100.06012.30
5.2.160.0130.05012.30
5.2.150.0030.06012.30
5.2.140.0130.04312.30
5.2.130.0070.04712.30
5.2.120.0100.05312.30
5.2.110.0030.05012.30
5.2.100.0030.06712.30
5.2.90.0130.05312.30
5.2.80.0100.06312.30
5.2.70.0030.04712.30
5.2.60.0000.07012.30
5.2.50.0030.05012.30
5.2.40.0070.06012.30
5.2.30.0100.05712.30
5.2.20.0170.04312.30
5.2.10.0000.03712.30
5.2.00.0070.04312.30
5.1.60.0030.04312.30
5.1.50.0030.05712.30
5.1.40.0030.05712.30
5.1.30.0030.02312.30
5.1.20.0130.02012.30
5.1.10.0030.03712.30
5.1.00.0100.02312.30
5.0.50.0070.03712.30
5.0.40.0100.03312.30
5.0.30.0030.07712.30
5.0.20.0000.02712.30
5.0.10.0070.04012.30
5.0.00.0100.06012.30
4.4.90.0030.03012.30
4.4.80.0030.03312.30
4.4.70.0030.02312.30
4.4.60.0000.03312.30
4.4.50.0070.02712.30
4.4.40.0000.02712.30
4.4.30.0000.02012.30
4.4.20.0070.02712.30
4.4.10.0070.03012.30
4.4.00.0030.05012.30
4.3.110.0070.01312.30
4.3.100.0030.03012.30
4.3.90.0030.03312.30
4.3.80.0070.03012.30
4.3.70.0100.02712.30
4.3.60.0070.03012.30
4.3.50.0030.03712.30
4.3.40.0000.04712.30
4.3.30.0030.03312.30
4.3.20.0070.03012.30
4.3.10.0000.02712.30
4.3.00.0000.03312.30

preferences:
40.67 ms | 401 KiB | 5 Q