Online PHP editor | output for 3LaNc

@ 2016-09-16T22:43:40Z

<?php

    $array = [1,2,3,[5,6,7]];
    $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_walk($array, $callback);
    print_r($nu_array);

    $nu_array = [];
    array_walk_recursive($array, function ( $item ) use(&$nu_array )
                         {
                             $nu_array[] = $item;
                         }
);
print_r($nu_array);

Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.5.0: Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 [4] => 6 [5] => 7 ) Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 5 [4] => 6 [5] => 7 )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.

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