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<?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; } } } }; $array = array('alpha',array(1,2,3),'beta',array(7,8,array(9,10))); array_walk_recursive($array, $callback); print_r($nu_array); $output = array(); array_walk_recursive($array, function ($current) use (&$output) { $output[] = $current; }); print_r($output); print "\n...................................\n"; $output = array(); array_walk($array, function ($current) use (&$output) { $output[] = $current; }); print_r($output);
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Array ( [0] => alpha [1] => 1 [2] => 2 [3] => 3 [4] => beta [5] => 7 [6] => 8 [7] => 9 [8] => 10 ) Array ( [0] => alpha [1] => 1 [2] => 2 [3] => 3 [4] => beta [5] => 7 [6] => 8 [7] => 9 [8] => 10 ) ................................... Array ( [0] => alpha [1] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [2] => beta [3] => Array ( [0] => 7 [1] => 8 [2] => Array ( [0] => 9 [1] => 10 ) ) )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [0] => alpha [1] => 1 [2] => 2 [3] => 3 [4] => beta [5] => 7 [6] => 8 [7] => 9 [8] => 10 ) Array ( [0] => alpha [1] => 1 [2] => 2 [3] => 3 [4] => beta [5] => 7 [6] => 8 [7] => 9 [8] => 10 ) ................................... Array ( [0] => alpha [1] => Array ( [0] => 1 [1] => 2 [2] => 3 ) [2] => beta [3] => Array ( [0] => 7 [1] => 8 [2] => Array ( [0] => 9 [1] => 10 ) ) )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/eeVFD on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/eeVFD on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/eeVFD on line 3
Process exited with code 255.

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