3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo(&$b) { $b*=2; return $b; } $x = 3; $y = foo($x); $x = 5; echo $x . ' , ' . $y; //var_dump(false); /*preg_match('@^(?:http://)?([^/]+)@i','http://www.php.net/index.html',$matches); ${"a"} = $matches[1]; &$a = 12; echo &$a; var_export(${"a"});*/ /*echo ${"a"};*/ /*trait Foo { private $name = '123'; } class Bar { //use Foo; private static $name = '321'; public static function getName(){return static::$name;} } */ /*echo sprintf(' "%04d"', 1);*/ /* $num = array('11' , '12', '13'); foreach ($num as $val) { $val++; } print_r($num);*/ /* class Foo extends Bar{private static $name='123';} $bar = new Foo(); $bar::getName();*/ /*echo false; */ //class Faz {}// $i = new Faz(); echo $i->t;/* /* class Baz extends Faz {} interface Foo {public function du(Faz $param);} class A implements Foo { public function du(Baz $param){ echo false; } } $c = new A(); $c->du(new Baz());*/ /* $i = 5; echo $i++; echo $i;*/ /* namespace Bar; function strlen($string){return 5;} namespace Foo; use Bar; echo strlen('Baz');*/ //var_dump(array_values(ksort(array('re'=>'asd', '3'=>'asda')))); //echo true;

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)
8.3.40.0060.00918.71
8.3.30.0030.01019.04
8.3.20.0070.00020.27
8.3.10.0050.00321.64
8.3.00.0050.00317.63
8.2.170.0030.01222.96
8.2.160.0040.01120.52
8.2.150.0080.00024.18
8.2.140.0070.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00419.47
8.2.110.0060.00322.05
8.2.100.0080.00417.78
8.2.90.0040.00419.22
8.2.80.0090.00017.97
8.2.70.0070.00317.63
8.2.60.0040.00417.93
8.2.50.0050.00518.07
8.2.40.0060.00318.34
8.2.30.0000.00718.04
8.2.20.0040.00417.64
8.2.10.0040.00418.16
8.2.00.0050.00317.72
8.1.270.0050.00323.78
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.68
8.1.230.0060.00619.14
8.1.220.0050.00317.74
8.1.210.0050.00318.77
8.1.200.0000.00917.35
8.1.190.0000.00817.13
8.1.180.0030.00519.14
8.1.170.0030.00518.46
8.1.160.0000.00722.08
8.1.150.0070.00018.75
8.1.140.0040.00417.35
8.1.130.0040.00419.57
8.1.120.0030.00317.30
8.1.110.0040.00417.38
8.1.100.0030.00317.42
8.1.90.0000.00717.34
8.1.80.0040.00417.52
8.1.70.0030.00617.31
8.1.60.0000.00917.55
8.1.50.0040.00417.53
8.1.40.0040.00417.40
8.1.30.0040.00417.61
8.1.20.0040.00417.56
8.1.10.0040.00417.43
8.1.00.0030.00617.43
8.0.300.0030.00418.77
8.0.290.0000.00716.63
8.0.280.0000.00718.42
8.0.270.0080.00017.16
8.0.260.0000.00717.16
8.0.250.0030.00316.89
8.0.240.0080.00016.85
8.0.230.0000.00716.80
8.0.220.0000.00716.93
8.0.210.0000.00716.87
8.0.200.0000.00616.82
8.0.190.0000.00817.03
8.0.180.0050.00316.80
8.0.170.0030.00516.84
8.0.160.0050.00216.85
8.0.150.0070.00016.88
8.0.140.0050.00516.76
8.0.130.0000.00513.26
8.0.120.0040.00416.87
8.0.110.0050.00216.79
8.0.100.0040.00416.86
8.0.90.0040.00416.91
8.0.80.0060.00916.77
8.0.70.0000.00816.77
8.0.60.0070.00016.77
8.0.50.0000.00716.78
8.0.30.0160.00517.09
8.0.20.0110.01117.40
8.0.10.0040.00416.97
8.0.00.0130.00416.78
7.4.330.0050.00015.10
7.4.320.0030.00316.49
7.4.300.0070.00016.48
7.4.290.0030.00316.51
7.4.280.0040.00416.41
7.4.270.0000.00716.49
7.4.260.0000.00716.45
7.4.250.0030.00316.47
7.4.240.0030.00316.53
7.4.230.0030.00316.57
7.4.220.0150.00616.53
7.4.210.0090.00616.67
7.4.200.0030.00316.57
7.4.160.0070.01416.50
7.4.150.0130.00617.40
7.4.140.0080.00917.86
7.4.130.0360.01216.35
7.4.120.0090.00816.55
7.4.110.0100.01016.46
7.4.100.0110.01416.59
7.4.90.0160.00316.40
7.4.80.0130.01019.39
7.4.70.0160.00016.39
7.4.60.0070.01016.41
7.4.50.0020.00216.54
7.4.40.0130.00316.35
7.4.30.0080.00816.54
7.4.00.0030.00715.10
7.3.330.0000.00613.11
7.3.320.0050.00013.13
7.3.310.0030.00316.33
7.3.300.0070.00016.34
7.3.290.0160.00016.26
7.3.280.0070.00916.28
7.3.270.0070.01117.40
7.3.260.0040.01316.47
7.3.240.0070.01016.41
7.3.230.0130.00316.39
7.3.210.0060.01216.54
7.3.200.0130.00919.39
7.3.190.0150.00316.56
7.3.180.0100.00616.34
7.3.170.0040.01216.51
7.3.160.0100.00616.50
7.3.10.0110.01116.18
7.3.00.0180.00616.67
7.2.330.0090.00916.54
7.2.320.0070.01016.80
7.2.310.0100.00716.79
7.2.300.0140.00316.61
7.2.290.0000.01516.79
7.2.130.0140.01416.53
7.2.120.0090.00917.05
7.2.110.0140.00316.93
7.2.100.0070.01016.75
7.2.90.0070.00716.49
7.2.80.0080.00816.63
7.2.70.0060.01216.69
7.2.60.0090.00616.80
7.2.50.0160.00016.72
7.2.40.0090.00616.81
7.2.30.0110.00716.65
7.2.20.0060.00616.50
7.2.10.0040.01516.75
7.2.00.0080.01018.06
7.1.250.0170.00315.60
7.1.200.0100.00515.42
7.1.100.0040.00718.24
7.1.70.0040.00817.07
7.1.60.0130.01019.40
7.1.50.0110.00616.53
7.1.00.0030.07722.33
7.0.200.0030.00316.79
7.0.140.0000.07721.98
7.0.110.1070.06020.09
7.0.100.0170.06320.03
7.0.90.0130.06320.03
7.0.80.0130.05319.84
7.0.70.0230.07319.97
7.0.60.0130.08019.65
7.0.50.0130.08320.48
7.0.40.0100.08020.04
7.0.30.0170.07320.19
7.0.20.0130.06320.27
7.0.10.0100.08720.24
7.0.00.0170.08320.23
5.6.280.0030.07321.00
5.6.250.0030.08320.59
5.6.240.0030.08720.54
5.6.230.0130.07320.54
5.6.220.0070.05320.55
5.6.210.0070.08720.61
5.6.200.0130.07320.94
5.6.190.0070.08721.14
5.6.180.0100.07021.19
5.6.170.0030.09021.12
5.6.160.0130.07320.94
5.6.150.0100.07320.93
5.6.140.0130.06720.95
5.6.130.0070.08721.05
5.6.120.0130.08321.12
5.6.110.0130.07020.98
5.6.100.0100.07721.18
5.6.90.0170.07320.91
5.6.80.0100.08020.47
5.6.70.0030.08020.60
5.6.60.0070.06720.45
5.6.50.0170.05720.67
5.6.40.0070.07720.45
5.6.30.0070.08020.27
5.6.20.0100.08020.45
5.6.10.0030.05320.34
5.6.00.0000.04320.27
5.5.380.0130.07020.32
5.5.370.0100.08020.37
5.5.360.0130.08020.54
5.5.350.0070.07320.42
5.5.340.0100.08020.70
5.5.330.0170.07020.75
5.5.320.0100.08020.96
5.5.310.0130.07320.97
5.5.300.0130.07020.87
5.5.290.0100.05720.95
5.5.280.0170.07320.81
5.5.270.0070.07720.73
5.5.260.0100.09020.70
5.5.250.0030.08720.80
5.5.240.0170.07020.25
5.5.230.0030.06320.32
5.5.220.0100.08020.32
5.5.210.0130.06320.32
5.5.200.0100.07320.17
5.5.190.0100.07720.32
5.5.180.0030.09020.09
5.5.160.0130.07320.36
5.5.150.0100.03320.24
5.5.140.0030.04720.18
5.5.130.0100.03320.39
5.5.120.0030.04020.16
5.5.110.0100.07020.24
5.5.100.0030.08720.20
5.5.90.0100.07320.00
5.5.80.0130.05720.05
5.5.70.0000.07320.07
5.5.60.0030.07020.01
5.5.50.0070.06719.98
5.5.40.0070.07320.13
5.5.30.0030.07320.14
5.5.20.0130.03020.16
5.5.10.0130.05719.92
5.5.00.0070.03719.96
5.4.450.0030.06719.36
5.4.440.0100.07719.66
5.4.430.0100.07719.31
5.4.420.0130.08019.33
5.4.410.0070.07319.43
5.4.400.0070.08319.34
5.4.390.0100.07319.07
5.4.380.0030.05319.23
5.4.370.0070.08019.02
5.4.360.0100.07319.34
5.4.350.0070.07319.02
5.4.340.0100.07318.99
5.4.320.0070.04019.01
5.4.310.0030.05719.32
5.4.300.0100.05319.34
5.4.290.0100.03319.02
5.4.280.0030.04019.16
5.4.270.0030.03719.09
5.4.260.0070.07018.98
5.4.250.0070.06719.30
5.4.240.0070.03019.18
5.4.230.0100.08018.98
5.4.220.0070.06319.03
5.4.210.0130.07319.31
5.4.200.0100.06719.02
5.4.190.0030.03319.17
5.4.180.0070.03318.99
5.4.170.0100.06019.23
5.4.160.0070.06718.98
5.4.150.0130.02719.01
5.4.140.0030.03316.54
5.4.130.0000.04016.29
5.4.120.0030.03316.48
5.4.110.0070.04716.47
5.4.100.0170.05016.32
5.4.90.0030.03316.26
5.4.80.0070.06016.56
5.4.70.0000.03716.25
5.4.60.0030.04016.63
5.4.50.0000.04016.48
5.4.40.0030.03716.44
5.4.30.0000.04016.23
5.4.20.0030.03316.38
5.4.10.0030.04016.43
5.4.00.0070.03015.84
5.3.290.0070.03714.64
5.3.280.0030.05314.57
5.3.270.0070.03314.73
5.3.260.0070.07014.62
5.3.250.0030.03714.61
5.3.240.0000.04014.59
5.3.230.0100.03314.63
5.3.220.0030.04014.57
5.3.210.0130.02714.52
5.3.200.0000.03714.54
5.3.190.0000.04014.58
5.3.180.0070.03314.52
5.3.170.0000.04314.65
5.3.160.0070.03314.54
5.3.150.0030.03714.59
5.3.140.0030.04014.68
5.3.130.0000.04014.67
5.3.120.0070.03314.50
5.3.110.0070.04314.68
5.3.100.0000.04014.04
5.3.90.0030.04014.15
5.3.80.0030.03714.15
5.3.70.0000.04014.03
5.3.60.0000.04314.02
5.3.50.0100.03013.89
5.3.40.0070.03314.07
5.3.30.0030.03313.89
5.3.20.0070.03313.71
5.3.10.0000.04013.78
5.3.00.0000.08313.64
5.2.170.0030.02711.11
5.2.160.0030.02711.13
5.2.150.0000.03011.09
5.2.140.0030.02711.15
5.2.130.0000.02711.10
5.2.120.0100.02311.09
5.2.110.0100.02010.95
5.2.100.0070.02311.16
5.2.90.0070.02710.95
5.2.80.0100.03711.09
5.2.70.0030.06311.15
5.2.60.0070.06011.02
5.2.50.0100.05711.06
5.2.40.0030.06310.97
5.2.30.0070.05710.93
5.2.20.0100.05310.82
5.2.10.0030.05710.83
5.2.00.0000.06710.78
5.1.60.0170.0439.98
5.1.50.0030.0379.81
5.1.40.0030.0509.98
5.1.30.0030.04010.42
5.1.20.0030.06010.34
5.1.10.0070.03710.05
5.1.00.0000.06010.14
5.0.50.0030.0438.36
5.0.40.0000.0478.39
5.0.30.0030.0538.23
5.0.20.0000.0438.36
5.0.10.0070.0408.23
5.0.00.0000.0638.23
4.4.90.0000.0408.23
4.4.80.0070.0308.23
4.4.70.0000.0208.23
4.4.60.0000.0378.23
4.4.50.0000.0378.23
4.4.40.0000.0478.23
4.4.30.0000.0278.23
4.4.20.0030.0338.23
4.4.10.0030.0308.23
4.4.00.0030.0538.23
4.3.110.0030.0378.23
4.3.100.0030.0338.23
4.3.90.0070.0308.23
4.3.80.0000.0538.23
4.3.70.0100.0308.23
4.3.60.0000.0378.23
4.3.50.0000.0308.23
4.3.40.0030.0508.23
4.3.30.0000.0378.23
4.3.20.0000.0378.23
4.3.10.0030.0378.23
4.3.00.0000.0378.23

preferences:
40.35 ms | 400 KiB | 5 Q