3v4l.org

run code in 300+ PHP versions simultaneously
<?php $PHORUM = array( "OBJ" => new ArrayObject() ); for ($x = 0; $x < 100; $x++) { if ($x % 3 == 0) { $PHORUM[$x] = "XXXXXXXXXXX"; } elseif ($x % 5 == 0) { $PHORUM[$x] = array( "x" => array( "x" => array( "x" => array( "x" => "foo" ) ) ) ); } else { $PHORUM[$x] = rand(1,100); } } function global_copy_from() { global $PHORUM; $foo = $PHORUM[0]; } function GLOBALS_copy_from() { $PHORUM = $GLOBALS["PHORUM"]; $foo = $PHORUM[0]; } $use_copy_from = function() use ($PHORUM) { $foo = $PHORUM[0]; }; function global_check() { global $PHORUM; if ($PHORUM[0] > 1) {} } function GLOBALS_check() { $PHORUM = $GLOBALS["PHORUM"]; if ($PHORUM[0] > 1) {} } $use_check = function() use ($PHORUM) { if ($PHORUM[0] > 1) {} }; function global_change($i) { global $PHORUM; $PHORUM[0] = $i; } function GLOBALS_change($i) { $GLOBALS["PHORUM"][0] = $i; } $use_change = function($i) use (&$PHORUM) { $PHORUM[0] = $i; }; foreach (array("copy_from", "check", "change") as $z) { echo "$z:\n"; foreach (array("global", "GLOBALS", "use") as $x) { $runs = array(); $func = $x."_".$z; if (isset($$func)) { $callable = $$func; if (is_callable($callable)) { $func = $callable; } } for ($y = 0; $y < 31; $y++) { $time_start = microtime(true); for ($i=0; $i < 100; ++$i) { $func($i); } $time_end = microtime(true); $runs[] = round(($time_end - $time_start)*1000000, 3); } sort($runs); $runs = array_slice($runs, floor(count($runs) * 0.05), -1 * (floor(count($runs) * 0.05))); $avg = round((array_sum($runs)/count($runs)), 3); $low = reset($runs); $high = end($runs); $median = $runs[ceil(count($runs)/2)+1]; echo " $x:\n"; echo " avg: ".$avg."µs\n"; echo " median: ".$median."µs\n\n"; } echo "\n"; }

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)
7.3.10.0090.00916.51
7.3.00.0070.01016.50
7.2.130.0110.00716.99
7.2.120.0000.01816.70
7.2.110.0030.00916.79
7.2.100.0060.01316.86
7.2.90.0130.00617.02
7.2.80.0000.01417.10
7.2.70.0030.01316.76
7.2.60.0030.01516.81
7.2.50.0070.01416.93
7.2.40.0040.01516.97
7.2.30.0100.01017.04
7.2.20.0060.01217.03
7.2.10.0170.00016.79
7.2.00.0120.01117.86
7.1.250.0000.02015.81
7.1.70.0030.01217.09
7.1.60.0060.01019.59
7.1.50.0120.00916.70
7.1.00.0030.08022.40
7.0.200.0000.01016.47
7.0.60.0070.07720.05
7.0.50.0070.08317.92
7.0.40.0070.08320.02
7.0.30.0200.04320.11
7.0.20.0130.05020.16
7.0.10.0370.06320.24
7.0.00.0100.06020.09
5.6.280.0000.11021.03
5.6.210.0070.11320.59
5.6.200.0170.10018.26
5.6.190.0130.10720.45
5.6.180.3300.06320.58
5.6.170.0230.11020.68
5.6.160.0000.06320.54
5.6.150.0100.06718.20
5.6.140.0070.07018.19
5.6.130.0100.11018.22
5.6.120.0130.10321.18
5.6.110.0100.05321.13
5.6.100.0200.07021.02
5.6.90.0070.11320.99
5.6.80.0000.06020.32
5.6.70.3500.06720.42
5.5.350.0170.09020.45
5.5.340.0070.11018.01
5.5.330.0030.06320.38
5.5.320.0430.09720.41
5.5.310.0300.07320.38
5.5.300.0030.10317.92
5.5.290.0030.06017.96
5.5.280.0100.06020.96
5.5.270.0100.10720.93
5.5.260.0070.11020.91
5.5.250.0030.11720.62
5.5.240.0070.08020.11
5.4.450.1270.07019.42
5.4.440.0330.07319.61
5.4.430.0600.08019.51
5.4.420.0570.08319.52
5.4.410.0800.08019.41
5.4.400.0570.08319.29
5.4.390.0730.08719.22
5.4.380.0570.08319.32
5.4.370.0630.07318.96
5.4.360.0730.08719.22
5.4.350.0830.07719.22
5.4.340.0800.09019.31
5.4.320.0870.09319.22
5.4.310.0500.08019.23
5.4.300.0130.08019.32
5.4.290.0000.09319.32
5.4.280.0730.08018.97
5.4.270.0670.08019.22
5.4.260.0730.10719.26
5.4.250.0870.07318.88
5.4.240.0770.07719.32
5.4.230.0700.10019.21
5.4.220.0800.08719.31
5.4.210.0730.08319.29
5.4.200.0000.09016.97
5.4.190.0030.08719.07
5.4.180.0670.11719.04
5.4.170.0630.08019.29
5.4.160.0600.07719.06
5.4.150.0530.09019.05
5.4.140.0570.07316.37
5.4.130.0100.09016.53
5.4.120.0430.08316.49
5.4.110.0570.08316.52
5.4.100.0500.08716.29
5.4.90.0600.07716.53
5.4.80.0630.07316.62
5.4.70.0630.09016.55
5.4.60.0570.07716.46
5.4.50.0470.09316.66
5.4.40.0600.07316.50
5.4.30.0600.07316.48
5.4.20.0570.08316.43
5.4.10.0830.07716.49
5.4.00.0770.07715.94
5.3.290.0770.08014.91
5.3.280.0700.09314.66
5.3.270.0470.09314.77
5.3.260.0330.08314.75
5.3.250.0500.08314.70
5.3.240.0600.08014.65
5.3.230.0600.08714.71
5.3.220.0570.08714.61
5.3.210.0130.08014.82
5.3.200.0470.08714.58
5.3.190.0670.06714.65
5.3.180.0100.08014.61
5.3.170.0730.07714.70
5.3.160.0600.08714.57
5.3.150.0570.08714.65
5.3.140.0570.08314.82
5.3.130.0500.09014.68
5.3.120.0730.09314.71
5.3.110.0400.09314.64
5.3.100.0630.07714.18
5.3.90.0470.09714.17
5.3.80.0600.08714.06
5.3.70.0800.07314.07
5.3.60.0600.09714.20
5.3.50.0470.08314.02
5.3.40.0430.07014.02
5.3.30.0400.09714.16
5.3.20.0730.08713.79
5.3.10.0470.08313.75
5.3.00.0730.07713.83
5.2.170.0370.04711.32
5.2.160.0570.04311.32
5.2.150.0500.04011.02
5.2.140.0500.04311.05
5.2.130.0400.04011.10
5.2.120.0430.04311.28
5.2.110.0600.04011.18
5.2.100.0670.03711.27
5.2.90.0630.03311.18
5.2.80.0430.05011.26
5.2.70.0400.05011.02
5.2.60.0330.05011.01
5.2.50.0570.04711.00
5.2.40.0330.04710.86
5.2.30.0570.03310.83
5.2.20.0500.04010.93
5.2.10.0500.03010.94
5.2.00.0300.04710.79
5.1.60.0200.03310.08
5.1.50.0370.0379.99
5.1.40.0300.0339.92
5.1.30.0330.03010.29
5.1.20.0400.03710.35
5.1.10.0500.03010.01
5.1.00.0500.03310.09
5.0.50.0130.0378.54
5.0.40.0300.0238.53
5.0.30.0200.0438.23
5.0.20.0030.0338.33
5.0.10.0300.0378.16
5.0.00.0300.0378.25
4.4.90.0230.0236.22
4.4.80.0170.0206.22
4.4.70.0170.0206.22
4.4.60.0170.0236.22
4.4.50.0130.0306.22
4.4.40.0100.0336.22
4.4.30.0100.0276.22
4.4.20.0270.0236.22
4.4.10.0300.0236.22
4.4.00.0130.0406.22
4.3.110.0230.0206.22
4.3.100.0200.0176.22
4.3.90.0200.0236.22
4.3.80.0200.0376.22
4.3.70.0230.0236.22
4.3.60.0230.0206.22
4.3.50.0230.0276.22
4.3.40.0070.0436.22
4.3.30.0000.0276.22
4.3.20.0130.0276.22
4.3.10.0070.0276.22
4.3.00.0000.01715.42

preferences:
27.73 ms | 403 KiB | 5 Q