3v4l.org

run code in 300+ PHP versions simultaneously
<?php $nu_array = null; $callback = function ( $item ) use(&$callback, &$nu_array) { if (!is_array($item)) { $nu_array[] = $item; } else if ( is_array( $item ) ) { foreach( array_values($item) as $v) { if ( !(is_array($v))) { $nu_array[] = $v; } else { $callback( $v ); continue; } } } }; $array = array( 'a',array(1,2), 'b',array(3,4, array(5,6, array('c','d', array(7,8)) ); array_walk($array, $callback); print_r($nu_array); /** Array ( ) **/

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)
5.4.340.0600.00019.07
5.4.320.0090.03512.52
5.4.310.0080.03812.52
5.4.300.0040.03812.52
5.4.290.0040.03812.51
5.4.280.0020.03812.41
5.4.270.0040.03912.41
5.4.260.0060.03612.41
5.4.250.0050.03712.41
5.4.240.0080.03812.41
5.4.230.0090.03812.40
5.4.220.0080.03412.40
5.4.210.0060.03812.40
5.4.200.0040.03812.40
5.4.190.0040.03612.40
5.4.180.0050.03712.40
5.4.170.0070.03412.41
5.4.160.0060.03412.40
5.4.150.0040.04012.40
5.4.140.0100.03812.09
5.4.130.0040.03512.07
5.4.120.0020.04312.03
5.4.110.0050.03412.03
5.4.100.0070.03212.03
5.4.90.0080.03312.03
5.4.80.0050.03712.03
5.4.70.0050.03812.03
5.4.60.0050.03312.03
5.4.50.0090.03312.03
5.4.40.0050.03412.02
5.4.30.0060.04112.01
5.4.20.0030.03612.01
5.4.10.0060.03312.02
5.4.00.0080.04511.50
5.3.290.0100.04112.80
5.3.280.0070.03612.71
5.3.270.0060.03812.72
5.3.260.0070.04212.72
5.3.250.0090.03512.72
5.3.240.0080.03612.72
5.3.230.0050.04012.70
5.3.220.0060.03512.68
5.3.210.0080.04112.68
5.3.200.0050.03712.68
5.3.190.0040.03712.68
5.3.180.0080.03912.67
5.3.170.0060.04112.67
5.3.160.0080.03412.67
5.3.150.0070.03512.67
5.3.140.0060.03512.66
5.3.130.0040.03912.65
5.3.120.0080.04112.66
5.3.110.0050.03912.66
5.3.100.0050.04012.12
5.3.90.0080.03312.10
5.3.80.0080.03312.09
5.3.70.0040.03712.10
5.3.60.0070.03412.08
5.3.50.0060.04212.03
5.3.40.0050.04512.03
5.3.30.0060.03411.99
5.3.20.0070.03311.77
5.3.10.0070.03211.73
5.3.00.0030.03711.72
5.2.170.0030.0329.18
5.2.160.0020.0329.18
5.2.150.0030.0329.18
5.2.140.0050.0309.18
5.2.130.0050.0299.14
5.2.120.0060.0289.14
5.2.110.0030.0309.14
5.2.100.0050.0289.14
5.2.90.0060.0279.14
5.2.80.0020.0329.14
5.2.70.0060.0279.14
5.2.60.0050.0289.09
5.2.50.0070.0309.06
5.2.40.0070.0269.04
5.2.30.0030.0319.01
5.2.20.0040.0379.00
5.2.10.0060.0268.93
5.2.00.0050.0278.79
5.1.60.0040.0238.07
5.1.50.0070.0228.06
5.1.40.0030.0248.05
5.1.30.0050.0248.40
5.1.20.0040.0268.42
5.1.10.0040.0308.14
5.1.00.0070.0238.14
5.0.50.0040.0216.63
5.0.40.0030.0226.48
5.0.30.0030.0316.29
5.0.20.0050.0176.27
5.0.10.0040.0186.24
5.0.00.0030.0306.24
4.4.90.0030.0154.78
4.4.80.0020.0154.76
4.4.70.0020.0214.76
4.4.60.0040.0134.76
4.4.50.0050.0204.77
4.4.40.0040.0234.71
4.4.30.0020.0204.76
4.4.20.0030.0154.85
4.4.10.0020.0174.84
4.4.00.0020.0244.76
4.3.110.0020.0174.67
4.3.100.0030.0174.66
4.3.90.0020.0144.63
4.3.80.0020.0304.59
4.3.70.0030.0204.63
4.3.60.0040.0184.63
4.3.50.0010.0164.63
4.3.40.0050.0204.54
4.3.30.0020.0153.29
4.3.20.0020.0233.26
4.3.10.0030.0143.22
4.3.00.0200.03713.59

preferences:
141.22 ms | 1394 KiB | 7 Q