3v4l.org

run code in 300+ PHP versions simultaneously
<?php $one = array( 1, 2, 3 ); $two = array( null ); $two[1] =& $one; var_dump( $two ); class foo { static function bar( &$v ) { var_dump( $v ); } } foo::bar( $two ); /* class foo { static $mem; static function setMem( &$v ) { self::$mem[ $v[0] ] = $v[1]; } static function readMem( &$v ) { $a = $v[3]; $v[2][$a] =& self::$mem[ $v[1] ]; } static function reset( &$v ) { reset( $v[0] ); } static function each( &$v ) { var_dump( $v ); $t = each( $v[0] ); self::$mem[ $v[1] ] = $t[1]; } static function show( &$v ) { echo $v[0]; } } $reset = array(null); $each = array(null, 'new'); $show = array(null); $arr = array( array('variable', array(1, 2, 3) ), array( 1=>'variable', 3=>0 ), array(), array( 1=>'variable', 3=>0 ), $each, array( 1=>'new', 3=>0 ),// 5 $show, ); $arr[1][2] =& $reset; $arr[2][0] =& $reset; $arr[3][2] =& $each; $arr[5][2] =& $show; $n = 0; foo::setMem( $arr[$n++] ); // 0 foo::readMem( $arr[$n++] ); // 1 foo::reset( $arr[$n++] ); // 2 foo::readMem( $arr[$n++] ); // 3 var_dump( $each ); foo::each( $arr[$n++] ); // 4 foo::readMem( $arr[$n++] ); // 5 foo::show( $arr[$n++] ); // 6 */

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)
8.3.60.0070.00716.73
8.3.50.0100.00821.97
8.3.40.0160.00018.49
8.3.30.0130.00319.08
8.3.20.0040.00420.25
8.3.10.0000.00721.59
8.3.00.0060.00319.25
8.2.180.0140.00418.41
8.2.170.0070.01022.96
8.2.160.0070.01020.38
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0080.00026.16
8.2.120.0050.00319.24
8.2.110.0030.00719.28
8.2.100.0070.00417.53
8.2.90.0040.00418.03
8.2.80.0000.00817.97
8.2.70.0090.00017.50
8.2.60.0000.00918.05
8.2.50.0030.00518.07
8.2.40.0030.00620.01
8.2.30.0040.00418.00
8.2.20.0040.00417.70
8.2.10.0080.00017.88
8.2.00.0040.00417.72
8.1.280.0140.00725.92
8.1.270.0080.00020.63
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00621.82
8.1.230.0040.00822.81
8.1.220.0000.00817.74
8.1.210.0040.00418.84
8.1.200.0030.00717.22
8.1.190.0030.00617.10
8.1.180.0030.00618.10
8.1.170.0030.00520.29
8.1.160.0000.00721.86
8.1.150.0040.00418.75
8.1.140.0040.00417.45
8.1.130.0030.00517.87
8.1.120.0000.00817.38
8.1.110.0000.00717.38
8.1.100.0040.00417.39
8.1.90.0000.00817.32
8.1.80.0040.00417.45
8.1.70.0070.00017.28
8.1.60.0030.00617.49
8.1.50.0000.00917.55
8.1.40.0080.00017.46
8.1.30.0040.00417.61
8.1.20.0050.00217.72
8.1.10.0070.00017.45
8.1.00.0040.00417.58
8.0.300.0040.00419.96
8.0.290.0000.00716.75
8.0.280.0070.00018.26
8.0.270.0030.00517.19
8.0.260.0000.00617.30
8.0.250.0030.00416.85
8.0.240.0000.00616.91
8.0.230.0050.00316.87
8.0.220.0000.00816.80
8.0.210.0090.00016.76
8.0.200.0000.00616.85
8.0.190.0000.00716.88
8.0.180.0030.00316.90
8.0.170.0070.00016.79
8.0.160.0040.00316.84
8.0.150.0070.00016.77
8.0.140.0050.00216.85
8.0.130.0050.00013.19
8.0.120.0030.00616.78
8.0.110.0000.00716.82
8.0.100.0040.00416.87
8.0.90.0040.00416.84
8.0.80.0100.00616.82
8.0.70.0050.00316.63
8.0.60.0050.00316.72
8.0.50.0000.00716.86
8.0.30.0080.01316.86
8.0.20.0170.01417.40
8.0.10.0040.00416.88
8.0.00.0060.01216.80
7.4.330.0050.00015.07
7.4.320.0060.00016.45
7.4.300.0060.00016.45
7.4.290.0070.00016.51
7.4.280.0080.00016.59
7.4.270.0070.00016.61
7.4.260.0000.00716.56
7.4.250.0050.00316.49
7.4.240.0010.00616.52
7.4.230.0030.00316.53
7.4.220.0190.00316.70
7.4.210.0020.01316.53
7.4.200.0040.00316.63
7.4.160.0090.00616.39
7.4.150.0170.02517.40
7.4.140.0120.00717.86
7.4.130.0110.00716.45
7.4.120.0130.00716.47
7.4.110.0020.00616.46
7.4.100.0120.00616.57
7.4.90.0130.00516.46
7.4.80.0200.00019.39
7.4.70.0030.01416.41
7.4.60.0060.00916.40
7.4.50.0000.00416.46
7.4.40.0120.00916.28
7.4.30.0060.01116.30
7.4.00.0040.01415.01
7.3.330.0000.00513.31
7.3.320.0080.00813.29
7.3.310.0030.00316.19
7.3.300.0030.00316.25
7.3.290.0000.00616.34
7.3.280.0090.00716.28
7.3.270.0130.01017.40
7.3.260.0040.01416.30
7.3.250.0080.00916.41
7.3.240.0170.00016.58
7.3.230.0140.00416.39
7.3.210.0070.01016.55
7.3.200.0070.01019.39
7.3.190.0080.01216.29
7.3.180.0070.01016.17
7.3.170.0110.01116.60
7.3.160.0110.00616.42
7.3.10.0030.01015.91
7.3.00.0000.01016.30
7.2.330.0030.01416.74
7.2.320.0140.00316.23
7.2.310.0290.03516.32
7.2.300.0100.01316.62
7.2.290.0060.01216.38
7.2.130.0070.00716.54
7.2.120.0040.01116.42
7.2.110.0040.01116.54
7.2.100.0060.00916.58
7.2.90.0210.00916.59
7.2.80.0070.00416.53
7.2.70.0100.01016.88
7.2.60.0150.00016.46
7.2.50.0180.00916.70
7.2.40.0120.00316.62
7.2.30.0080.00816.58
7.2.20.0120.00316.22
7.2.10.0130.00616.56
7.2.00.0120.00717.89
7.1.250.0090.00515.50
7.1.100.0120.00817.86
7.1.70.0050.00517.20
7.1.60.0090.01619.50
7.1.50.0130.01017.00
7.1.00.0070.07322.28
7.0.200.0170.00316.43
7.0.140.0070.03021.95
7.0.110.0070.08020.07
7.0.100.0070.08319.94
7.0.90.0130.07719.95
7.0.80.0100.07720.07
7.0.70.0070.08019.88
7.0.60.0100.08020.00
7.0.50.0200.07319.87
7.0.40.0030.09019.75
7.0.30.0030.08719.82
7.0.20.0070.04719.84
7.0.10.0070.08019.88
7.0.00.0100.07319.77
5.6.280.0030.07321.11
5.6.260.0070.09020.69
5.6.250.0170.07320.65
5.6.240.0070.08020.56
5.6.230.0030.07320.69
5.6.220.0170.07020.55
5.6.210.0100.08020.73
5.6.200.0000.09320.62
5.6.190.0070.08020.62
5.6.180.0070.07720.57
5.6.170.0030.08320.57
5.6.160.0030.08320.66
5.6.150.0130.08020.62
5.6.140.0100.08320.57
5.6.130.0170.06320.55
5.6.120.0100.07720.56
5.6.110.0170.07320.84
5.6.100.0100.08020.54
5.6.90.0230.03720.59
5.6.80.0070.07720.02
5.6.70.0100.06020.05
5.6.60.0230.05320.01
5.6.50.0130.07020.01
5.6.40.0100.04720.00
5.6.30.0100.07719.92
5.6.20.0100.07720.21
5.6.10.0030.08019.98
5.6.00.0170.06720.00
5.5.380.0030.05317.58
5.5.370.0100.07717.60
5.5.360.0100.07717.55
5.5.350.0000.07717.66
5.5.340.0100.08318.09
5.5.330.0070.08018.14
5.5.320.0130.06318.22
5.5.310.0030.07717.93
5.5.300.0030.08318.10
5.5.290.0100.04717.89
5.5.280.0130.08018.09
5.5.270.0070.07318.21
5.5.260.0100.07317.90
5.5.250.0100.07717.71
5.5.240.0070.08317.22
5.5.230.0130.06717.45
5.5.220.0030.07717.25
5.5.210.0100.04017.46
5.5.200.0100.07717.43
5.5.190.0100.04317.26
5.5.180.0000.04717.45
5.5.160.0070.07717.44
5.5.150.0070.07317.56
5.5.140.0030.07317.47
5.5.130.0130.07017.43
5.5.120.0030.07717.27
5.5.110.0070.07017.43
5.5.100.0100.03717.31
5.5.90.0070.07717.30
5.5.80.0170.06717.16
5.5.70.0070.08317.19
5.5.60.0070.08017.20
5.5.50.0130.07017.36
5.5.40.0070.07717.37
5.5.30.0000.04717.46
5.5.20.0030.08017.29
5.5.10.0170.06717.19
5.5.00.0100.04017.16
5.4.450.0100.07319.64
5.4.440.0070.08019.32
5.4.430.0200.06719.34
5.4.420.0070.04719.46
5.4.410.0070.04319.50
5.4.400.0000.08019.10
5.4.390.0100.08019.00
5.4.380.0100.07319.02
5.4.370.0130.07318.99
5.4.360.0000.06318.95
5.4.350.0100.07319.34
5.4.340.0030.08019.02
5.4.320.0070.08319.18
5.4.310.0130.06719.02
5.4.300.0070.08318.98
5.4.290.0070.08019.05
5.4.280.0100.07019.16
5.4.270.0130.03718.98
5.4.260.0100.06018.98
5.4.250.0030.06019.04
5.4.240.0070.08019.00
5.4.230.0070.07019.19
5.4.220.0070.03719.13
5.4.210.0070.07018.99
5.4.200.0070.07319.01
5.4.190.0070.05719.16
5.4.180.0070.08019.13
5.4.170.0100.07319.23
5.4.160.0130.07019.22
5.4.150.0030.06319.31
5.4.140.0130.03716.34
5.4.130.0100.07016.52
5.4.120.0070.07316.38
5.4.110.0030.08016.41
5.4.100.0130.06016.59
5.4.90.0070.07316.66
5.4.80.0100.04016.53
5.4.70.0100.05316.45
5.4.60.0030.06716.53
5.4.50.0000.08016.47
5.4.40.0070.07016.45
5.4.30.0130.06716.48
5.4.20.0070.07316.23
5.4.10.0130.07016.44
5.4.00.0100.06716.04
5.3.290.0170.04314.68
5.3.280.0130.06314.73
5.3.270.0100.04014.63
5.3.260.0130.06714.60
5.3.250.0100.07014.74
5.3.240.0030.07314.61
5.3.230.0070.07714.82
5.3.220.0100.06714.80
5.3.210.0100.07314.64
5.3.200.0170.06314.54
5.3.190.0070.07014.58
5.3.180.0100.07014.59
5.3.170.0100.07314.54
5.3.160.0100.07314.53
5.3.150.0100.07714.57
5.3.140.0130.07014.78
5.3.130.0130.06314.63
5.3.120.0100.07314.55
5.3.110.0070.07314.77
5.3.100.0030.04714.01
5.3.90.0030.07314.01
5.3.80.0030.03714.16
5.3.70.0000.07714.02
5.3.60.0070.06314.03
5.3.50.0130.07013.93
5.3.40.0030.07713.98
5.3.30.0030.04714.04
5.3.20.0070.06313.77
5.3.10.0070.06313.63
5.3.00.0130.06713.59
5.2.170.0100.05711.13
5.2.160.0100.06011.27
5.2.150.0030.06011.27
5.2.140.0030.03711.22
5.2.130.0070.03311.18
5.2.120.0000.03311.09
5.2.110.0030.03311.08
5.2.100.0070.06311.06
5.2.90.0000.06311.19
5.2.80.0070.06011.24
5.2.70.0030.06711.07
5.2.60.0100.05711.05
5.2.50.0230.04310.98
5.2.40.0030.06011.05
5.2.30.0130.05310.99
5.2.20.0130.05010.95
5.2.10.0070.05710.85
5.2.00.0070.03310.57
5.1.60.0070.05010.24
5.1.50.0070.04710.24
5.1.40.0130.04310.24
5.1.30.0030.05710.35
5.1.20.0100.04710.48
5.1.10.0100.05010.24
5.1.00.0130.04710.24
5.0.50.0070.02710.24
5.0.40.0130.03710.24
5.0.30.0000.06710.24
5.0.20.0070.04310.24
5.0.10.0030.04310.24
5.0.00.0100.05710.24
4.4.90.0000.03010.24
4.4.80.0000.03310.24
4.4.70.0030.03010.24
4.4.60.0070.02710.24
4.4.50.0030.03010.24
4.4.40.0030.05010.24
4.4.30.0030.02310.24
4.4.20.0070.03010.24
4.4.10.0000.03710.24
4.4.00.0030.05310.24
4.3.110.0000.03310.24
4.3.100.0000.03710.24
4.3.90.0070.03010.24
4.3.80.0000.03710.24
4.3.70.0000.02310.24
4.3.60.0030.03310.24
4.3.50.0030.04710.24
4.3.40.0030.04710.24
4.3.30.0070.03010.24
4.3.20.0000.03710.24
4.3.10.0000.02710.24
4.3.00.0000.03710.24

preferences:
43.75 ms | 401 KiB | 5 Q