3v4l.org

run code in 300+ PHP versions simultaneously
<?php 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)
8.3.60.0110.00716.47
8.3.50.0140.00321.92
8.3.40.0040.01118.83
8.3.30.0030.01719.06
8.3.20.0030.00620.16
8.3.10.0070.00021.78
8.3.00.0060.00319.38
8.2.180.0120.00618.54
8.2.170.0040.01122.96
8.2.160.0030.01420.55
8.2.150.0000.00824.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0000.00819.28
8.2.110.0060.00320.97
8.2.100.0090.00317.97
8.2.90.0080.00018.03
8.2.80.0040.00417.97
8.2.70.0060.00317.88
8.2.60.0070.00317.93
8.2.50.0050.00318.07
8.2.40.0000.01020.01
8.2.30.0030.00618.09
8.2.20.0040.00417.84
8.2.10.0050.00318.13
8.2.00.0040.00417.83
8.1.280.0100.00725.92
8.1.270.0000.00820.78
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0090.00022.46
8.1.230.0070.00420.97
8.1.220.0000.00817.74
8.1.210.0080.00018.82
8.1.200.0050.00517.35
8.1.190.0000.00817.13
8.1.180.0050.00218.10
8.1.170.0000.00820.44
8.1.160.0040.00421.95
8.1.150.0050.00218.89
8.1.140.0040.00417.51
8.1.130.0030.00317.86
8.1.120.0000.00717.39
8.1.110.0070.00017.49
8.1.100.0040.00417.36
8.1.90.0030.00517.46
8.1.80.0040.00417.47
8.1.70.0000.00717.50
8.1.60.0060.00317.59
8.1.50.0000.00817.54
8.1.40.0040.00417.49
8.1.30.0000.00917.57
8.1.20.0030.00517.58
8.1.10.0040.00417.53
8.1.00.0000.00817.45
8.0.300.0000.00819.86
8.0.290.0040.00416.75
8.0.280.0000.00718.38
8.0.270.0040.00417.29
8.0.260.0060.00017.27
8.0.250.0000.00717.04
8.0.240.0000.00716.94
8.0.230.0030.00317.01
8.0.220.0040.00416.88
8.0.210.0040.00416.90
8.0.200.0040.00417.02
8.0.190.0030.00617.03
8.0.180.0040.00416.99
8.0.170.0040.00416.93
8.0.160.0050.00216.95
8.0.150.0000.00716.99
8.0.140.0040.00416.96
8.0.130.0000.00513.47
8.0.120.0060.00316.82
8.0.110.0070.00016.94
8.0.100.0080.00016.95
8.0.90.0000.00716.89
8.0.80.0120.00916.87
8.0.70.0040.00416.93
8.0.60.0020.00516.86
8.0.50.0000.00716.96
8.0.30.0110.01216.95
8.0.20.0150.00717.45
8.0.10.0040.00417.17
8.0.00.0100.00716.86
7.4.330.0000.00515.14
7.4.320.0000.00616.55
7.4.300.0030.00316.51
7.4.290.0070.00016.62
7.4.280.0080.00016.54
7.4.270.0030.00316.63
7.4.260.0040.00416.54
7.4.250.0040.00416.48
7.4.240.0010.00616.62
7.4.230.0030.00316.53
7.4.220.0120.01316.58
7.4.210.0020.01316.60
7.4.200.0030.00316.44
7.4.160.0040.01616.61
7.4.150.0070.01017.40
7.4.140.0090.01217.86
7.4.130.0110.01016.50
7.4.120.0090.00916.51
7.4.110.0090.01416.43
7.4.100.0070.01616.47
7.4.90.0100.01016.72
7.4.80.0150.00919.39
7.4.70.0060.01216.53
7.4.60.0040.01216.60
7.4.50.0000.00716.55
7.4.40.0110.01116.61
7.4.30.0070.01016.38
7.4.00.0040.01115.02
7.3.330.0060.00013.53
7.3.320.0100.00513.48
7.3.310.0000.00716.33
7.3.300.0070.00016.52
7.3.290.0030.00316.32
7.3.280.0070.01016.46
7.3.270.0060.01217.40
7.3.260.0060.01216.44
7.3.250.0090.00916.54
7.3.240.0110.00716.56
7.3.230.0090.00916.48
7.3.210.0030.01316.48
7.3.200.0070.01019.39
7.3.190.0070.01016.51
7.3.180.0110.00516.60
7.3.170.0160.00316.52
7.3.160.0110.01116.45
7.3.10.0060.01016.52
7.3.00.0080.01016.47
7.2.330.0060.01216.37
7.2.320.0060.01016.84
7.2.310.0070.01316.82
7.2.300.0170.00616.74
7.2.290.0100.01316.83
7.2.130.0080.00816.74
7.2.120.0150.00716.64
7.2.110.0120.00316.58
7.2.100.0120.00716.66
7.2.90.0120.00616.55
7.2.80.0050.00816.57
7.2.70.0050.01116.84
7.2.60.0090.00816.54
7.2.50.0170.00716.76
7.2.40.0080.00916.72
7.2.30.0100.01016.60
7.2.20.0050.01016.83
7.2.10.0040.00816.89
7.2.00.0080.00517.81
7.1.250.0100.00515.70
7.1.200.0070.00315.84
7.1.100.0300.00518.46
7.1.70.0050.00516.93
7.1.60.0120.01219.50
7.1.50.0130.01017.10
7.1.00.0030.07722.33
7.0.200.0200.00716.80
7.0.140.0070.03322.09
7.0.60.0030.07320.02
7.0.50.0100.07717.88
7.0.40.0270.07020.02
7.0.30.0300.07720.07
7.0.20.0300.07720.16
7.0.10.0200.04320.08
7.0.00.0100.08020.21
5.6.280.0030.07021.10
5.6.210.0130.07320.49
5.6.200.0070.08318.29
5.6.190.0030.06320.57
5.6.180.0170.04020.42
5.6.170.0170.04320.38
5.6.160.0000.06320.34
5.6.150.0170.06318.13
5.6.140.0070.08018.15
5.6.130.0030.08318.18
5.6.120.0070.07021.00
5.6.110.0030.08321.06
5.6.100.0100.08020.99
5.6.90.0100.08321.09
5.6.80.0030.05720.45
5.6.70.0170.07720.39
5.5.350.0170.08020.43
5.5.340.0030.04018.05
5.5.330.0100.05720.38
5.5.320.0170.05320.38
5.5.310.0370.07020.27
5.5.300.0000.08318.07
5.5.290.0070.08318.08
5.5.280.0070.08720.91
5.5.270.0070.07720.80
5.5.260.0100.08020.66
5.5.250.0170.07720.57
5.5.240.0170.03320.21
5.4.450.0170.05719.33
5.4.440.1030.03719.30
5.4.430.1170.06019.57
5.4.420.0800.05019.38
5.4.410.0800.05719.47
5.4.400.0270.05718.61
5.4.390.0300.06718.66
5.4.380.0270.07718.75
5.4.370.0270.05318.75
5.4.360.0230.05318.52
5.4.350.0230.05718.57
5.4.340.0330.04318.71
5.4.320.0170.08318.77
5.4.310.0200.08018.61
5.4.300.0300.07018.80
5.4.290.0200.06318.75
5.4.280.0200.06018.76
5.4.270.0330.06718.71
5.4.260.0170.06318.70
5.4.250.0230.05718.47
5.4.240.0370.06718.60
5.4.230.0300.06318.77
5.4.220.0300.06718.60
5.4.210.0200.05718.50
5.4.200.0200.05316.64
5.4.190.0200.05018.74
5.4.180.0270.06018.68
5.4.170.0130.06718.58
5.4.160.0270.05318.68
5.4.150.0230.05018.69
5.4.140.0300.04716.32
5.4.130.0200.05016.31
5.4.120.0130.06316.29
5.4.110.0330.06316.45
5.4.100.0230.08016.27
5.4.90.0170.06316.30
5.4.80.0200.05316.33
5.4.70.0200.06016.16
5.4.60.0130.08016.29
5.4.50.0270.05716.25
5.4.40.0270.05016.44
5.4.30.0330.06316.20
5.4.20.0330.06716.42
5.4.10.0170.05316.12
5.4.00.0230.05015.91
5.3.290.0370.05714.86
5.3.280.0400.03714.64
5.3.270.0170.06014.79
5.3.260.0230.05014.72
5.3.250.0300.06714.79
5.3.240.0300.06314.68
5.3.230.0330.05714.75
5.3.220.0270.05314.64
5.3.210.0170.05714.72
5.3.200.0300.06314.57
5.3.190.0230.05314.77
5.3.180.0200.07714.75
5.3.170.0130.06314.58
5.3.160.0270.05014.71
5.3.150.0200.06714.77
5.3.140.0270.04714.71
5.3.130.0330.05014.77
5.3.120.0130.06014.60
5.3.110.0230.05314.59
5.3.100.0170.05714.05
5.3.90.0230.06714.06
5.3.80.0200.06014.26
5.3.70.0200.05714.16
5.3.60.0300.06014.08
5.3.50.0330.06314.05
5.3.40.0300.04313.95
5.3.30.0100.06014.15
5.3.20.0230.05713.75
5.3.10.0130.05713.78
5.3.00.0170.06013.66
5.2.170.0200.04011.20
5.2.160.0100.04711.18
5.2.150.0230.03711.16
5.2.140.0170.04311.28
5.2.130.0170.04311.14
5.2.120.0100.04711.10
5.2.110.0200.04311.12
5.2.100.0100.05011.25
5.2.90.0170.04311.34
5.2.80.0200.04011.10
5.2.70.0170.04011.20
5.2.60.0200.04011.14
5.2.50.0130.04311.04
5.2.40.0170.03711.02
5.2.30.0130.04011.12
5.2.20.0170.03711.18
5.2.10.0100.04010.98
5.2.00.0200.03310.84
5.1.60.0100.03710.05
5.1.50.0170.03010.09
5.1.40.0100.03710.20
5.1.30.0100.04310.41
5.1.20.0170.03310.57
5.1.10.0130.03310.22
5.1.00.0170.03010.17
5.0.50.0100.0308.65
5.0.40.0100.0278.48
5.0.30.0070.0438.23
5.0.20.0030.0338.35
5.0.10.0030.0338.18
5.0.00.0100.0408.21
4.4.90.0000.0306.02
4.4.80.0030.0275.90
4.4.70.0100.0205.95
4.4.60.0100.0275.91
4.4.50.0100.0275.89
4.4.40.0170.0375.89
4.4.30.0170.0206.01
4.4.20.0100.0235.92
4.4.10.0070.0235.96
4.4.00.0100.0335.92
4.3.110.0070.0235.85
4.3.100.0100.0175.82
4.3.90.0070.0205.80
4.3.80.0130.0375.79
4.3.70.0100.0235.77
4.3.60.0030.0275.91
4.3.50.0100.0235.86
4.3.40.0070.0405.83
4.3.30.0030.0304.64
4.3.20.0070.0274.64
4.3.10.0030.0304.59
4.3.00.0100.0236.79

preferences:
34.41 ms | 401 KiB | 5 Q