3v4l.org

run code in 300+ PHP versions simultaneously
<?php $array = array(); $l = 100000; for($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)
7.4.00.0170.09635.99
7.3.120.0360.11835.00
7.3.110.0440.11235.12
7.3.100.0200.13635.16
7.3.90.0160.08534.96
7.3.80.0290.07834.92
7.3.70.0260.09134.97
7.3.60.0200.09034.86
7.3.50.0100.11734.96
7.3.40.0300.07335.04
7.3.30.0200.08435.21
7.3.20.0230.07938.51
7.3.10.0130.08038.56
7.3.00.0170.08038.41
7.2.250.0230.14235.17
7.2.240.0300.13235.30
7.2.230.0240.08435.12
7.2.220.0230.10235.06
7.2.210.0200.14135.13
7.2.200.0130.09435.53
7.2.190.0270.11035.23
7.2.180.0100.11835.06
7.2.170.0060.10735.36
7.2.160.0330.07735.33
7.2.150.0200.09238.33
7.2.140.0130.08538.36
7.2.130.0200.09138.68
7.2.120.0170.10738.74
7.2.110.0130.09838.62
7.2.100.0100.08838.60
7.2.90.0260.08338.37
7.2.80.0130.09838.49
7.2.70.0160.09038.62
7.2.60.0150.10438.59
7.2.50.0070.11438.59
7.2.40.0230.10138.71
7.2.30.0330.07838.90
7.2.20.0140.11038.52
7.2.10.0310.08038.36
7.2.00.0150.09840.00
7.1.330.0100.13037.63
7.1.320.0100.13237.78
7.1.310.0070.13637.77
7.1.300.0070.11837.41
7.1.290.0170.12937.66
7.1.280.0130.10837.59
7.1.270.0100.11437.34
7.1.260.0030.14337.62
7.1.250.0300.13037.54
7.1.240.0100.11837.53
7.1.230.0170.12637.64
7.1.220.0100.13537.59
7.1.210.0160.13537.46
7.1.200.0230.11637.39
7.1.190.0260.13837.86
7.1.180.0200.14337.57
7.1.170.0170.15237.50
7.1.160.0260.13237.64
7.1.150.0270.12237.68
7.1.140.0170.12237.48
7.1.130.0200.13237.68
7.1.120.0100.14237.56
7.1.110.0100.14837.55
7.1.100.0030.14137.63
7.1.90.0100.12137.73
7.1.80.0200.13737.75
7.1.70.0130.10138.54
7.1.60.0150.10738.59
7.1.50.0450.11338.19
7.1.40.0060.12737.59
7.1.30.0130.12437.82
7.1.20.0170.13337.39
7.1.10.0240.11537.64
7.1.00.0120.10140.87
7.0.330.0260.10137.47
7.0.320.0200.11637.20
7.0.310.0130.15037.18
7.0.300.0100.11337.21
7.0.290.0070.10736.83
7.0.280.0100.12836.78
7.0.270.0310.10437.34
7.0.260.0240.13537.30
7.0.250.0170.15137.40
7.0.240.0030.11237.05
7.0.230.0100.11237.16
7.0.220.0030.11637.23
7.0.210.0100.10937.26
7.0.200.0100.09637.81
7.0.190.0130.10537.47
7.0.180.0280.11837.33
7.0.170.0130.11637.29
7.0.160.0100.10937.43
7.0.150.0100.11637.16
7.0.140.0170.14940.73
7.0.130.0060.13937.25
7.0.120.0200.15037.41
7.0.110.0130.12137.27
7.0.100.0300.13637.22
7.0.90.0060.13337.38
7.0.80.3920.13938.68
7.0.70.3330.12338.89
7.0.60.3150.16138.67
7.0.50.3700.12939.06
7.0.40.0310.11023.61
7.0.30.0170.10923.62
7.0.20.2030.12523.71
7.0.10.1980.13723.63
7.0.00.1800.15423.63
5.6.400.0400.32662.34
5.6.390.0430.31662.95
5.6.380.0470.27262.58
5.6.370.0340.27762.68
5.6.360.0170.28262.88
5.6.350.0330.27262.54
5.6.340.0630.28962.75
5.6.330.0360.32162.84
5.6.320.0330.27662.58
5.6.310.0620.28662.60
5.6.300.0360.31562.71
5.6.290.0370.28463.08
5.6.280.0250.29566.19
5.6.270.0330.28062.89
5.6.260.0400.31162.76
5.6.250.0330.28162.69
5.6.240.0420.31363.14
5.6.230.0280.30165.99
5.6.220.0400.29365.85
5.6.210.0500.29765.92
5.6.200.0250.28466.19
5.6.190.0300.23366.25
5.6.180.0480.22266.15
5.6.170.0350.28766.27
5.6.160.0280.27066.01
5.6.150.0400.26866.08
5.6.140.0430.32666.26
5.6.130.0500.23566.22
5.6.120.0470.31966.28
5.6.110.0230.31666.14
5.6.100.0460.26366.03
5.6.90.0330.26166.14
5.6.80.0380.30665.81
5.6.70.0310.30565.66
5.6.60.0450.28865.84
5.6.50.0390.29965.83
5.6.40.0320.28865.64
5.6.30.0740.31365.71
5.6.20.0480.30165.85
5.6.10.0370.29165.63
5.6.00.0480.27565.75
5.5.380.0430.34662.90
5.5.370.0380.31265.82
5.5.360.0440.24765.78
5.5.350.0360.29465.66
5.5.340.0450.27566.10
5.5.330.0350.27465.75
5.5.320.0300.27166.09
5.5.310.0400.25866.03
5.5.300.0400.29465.86
5.5.290.0330.30666.01
5.5.280.0390.30366.08
5.5.270.0460.26466.03
5.5.260.0350.29166.13
5.5.250.0420.28465.83
5.5.240.0460.28565.68
5.5.230.0530.28265.58
5.5.220.0440.26365.57
5.5.210.0350.30065.56
5.5.200.0430.27865.74
5.5.190.0370.31465.86
5.5.180.0390.31165.71
5.5.170.0430.30962.80
5.5.160.0400.25365.76
5.5.150.0600.31465.60
5.5.140.0420.31365.76
5.5.130.0500.29165.48
5.5.120.0450.28965.79
5.5.110.0380.31265.72
5.5.100.0410.28065.50
5.5.90.0350.31565.57
5.5.80.0350.28565.68
5.5.70.0370.26865.53
5.5.60.0550.28365.53
5.5.50.0250.32765.51
5.5.40.0420.29365.60
5.5.30.0180.28165.69
5.5.20.0270.30465.48
5.5.10.0270.30365.55
5.5.00.0330.32365.41
5.4.450.0280.28563.74
5.4.440.0380.30563.78
5.4.430.0420.27563.43
5.4.420.0330.28663.59
5.4.410.0500.26963.45
5.4.400.0330.24563.50
5.4.390.0380.27763.56
5.4.380.0320.26263.52
5.4.370.0320.26763.43
5.4.360.0380.26163.57
5.4.350.0380.28663.42
5.4.340.0430.28363.44
5.4.330.0470.33159.74
5.4.320.0450.30863.60
5.4.310.0420.33263.54
5.4.300.0320.33063.27
5.4.290.0330.25963.41
5.4.280.0480.27863.43
5.4.270.0370.29463.40
5.4.260.0570.30563.39
5.4.250.0430.28563.44
5.4.240.0460.25763.46
5.4.230.0350.28563.32
5.4.220.0380.32863.55
5.4.210.0520.29563.49
5.4.200.0370.29863.53
5.4.190.0330.27563.39
5.4.180.0500.31163.39
5.4.170.0330.26463.49
5.4.160.0480.27863.46
5.4.150.0420.29263.40
5.4.140.0300.27262.10
5.4.130.0300.28462.17
5.4.120.0320.26262.07
5.4.110.0330.29062.20
5.4.100.0320.28962.04
5.4.90.0380.28662.09
5.4.80.0370.24662.14
5.4.70.0360.28462.06
5.4.60.0420.27162.14
5.4.50.0400.29262.04
5.4.40.0370.30362.19
5.4.30.0270.27262.15
5.4.20.0230.31962.22
5.4.10.0460.31462.13
5.4.00.0400.29861.76
5.3.290.0300.29260.96
5.3.280.0220.34860.88
5.3.270.0300.34160.89
5.3.260.0130.32460.96
5.3.250.0250.30460.97
5.3.240.0460.32060.79
5.3.230.0330.29860.86
5.3.220.0280.31260.82
5.3.210.0270.30160.70
5.3.200.0320.27360.72
5.3.190.0250.30760.95
5.3.180.0270.34760.81
5.3.170.0270.29860.73
5.3.160.0200.28860.79
5.3.150.0320.31860.89
5.3.140.0300.31960.99
5.3.130.0320.34060.93
5.3.120.0200.32060.82
5.3.110.0350.33760.91
5.3.100.0230.31960.56
5.3.90.0300.30260.57
5.3.80.0250.30260.39
5.3.70.0280.28560.52
5.3.60.0330.29860.54
5.3.50.0270.32260.48
5.3.40.0270.35260.54
5.3.30.0170.29960.62
5.3.20.0260.30360.22
5.3.10.0250.30760.24
5.3.00.0230.32260.23
5.2.170.0130.05013.50
5.2.160.0030.06313.50
5.2.150.0070.05313.50
5.2.140.0030.05313.50
5.2.130.0130.05313.50
5.2.120.0000.06713.50
5.2.110.0100.05013.50
5.2.100.0100.05013.50
5.2.90.0030.04713.50
5.2.80.0070.05013.50
5.2.70.0230.03313.50
5.2.60.0200.04713.50
5.2.50.0100.05713.50
5.2.40.0000.04313.50
5.2.30.0000.06713.50
5.2.20.0070.03013.50
5.2.10.0070.04713.50
5.2.00.0030.06013.50
5.1.60.0070.04713.50
5.1.50.0070.04013.50
5.1.40.0030.05313.50
5.1.30.0070.03713.50
5.1.20.0000.05013.50
5.1.10.0070.03313.50
5.1.00.0130.03013.50
5.0.50.0030.04713.50
5.0.40.0030.04313.50
5.0.30.0070.05313.50
5.0.20.0030.04013.50
5.0.10.0070.02713.50
5.0.00.0070.06313.50
4.4.90.0030.03713.50
4.4.80.0070.03313.50
4.4.70.0030.03713.50
4.4.60.0000.03013.50
4.4.50.0030.02313.50
4.4.40.0000.05013.50
4.4.30.0000.03713.50
4.4.20.0000.03313.50
4.4.10.0030.02713.50
4.4.00.0070.04713.50
4.3.110.0030.03013.50
4.3.100.0030.02013.50
4.3.90.0030.03313.50
4.3.80.0030.05313.50
4.3.70.0070.02713.50
4.3.60.0030.03713.50
4.3.50.0000.03013.50
4.3.40.0000.05313.50
4.3.30.0000.03713.50
4.3.20.0000.03313.50
4.3.10.0000.02713.50
4.3.00.0070.01313.50

preferences:
36.92 ms | 400 KiB | 5 Q