Remove an element from a multi-dimensional array

[BerbBrown]

Hi All

 

I have the following multi-dimensional array and I would like to remove all the 'VOID' elements.

 

I would like to maintain the array indexes.  If I had to I would like to know how I can reset the indexes.

 

Thank you very much in advance.

 

BB

 

 

 

Array
(
[0] => Array

    (
         [0] => VOID
         [1] => VOID
         [2] => VOID
         [3] => VOID
         [4] => VOID
         [5] => 16
         [6] => VOID
         [7] => 11
    )

[1] => Array
    (
         [0] => 21
         [1] => 2
         [2] => 2
         [3] => 1
         [4] => 33
         [5] => 27
         [6] => 32
         [7] => VOID
    )

[2] => Array
    (
         [0] => VOID
         [1] => VOID
         [2] => VOID
         [3] => VOID
         [4] => VOID
         [5] => VOID
         [6] => VOID
         [7] => VOID
    )

[3] => Array
    (
         [0] => VOID
         [1] => VOID
         [2] => VOID
         [3] => VOID
         [4] => 131
         [5] => 117
         [6] => 183
         [7] => VOID
     )

[4] => Array
     (
         [0] => VOID
         [1] => VOID
         [2] => VOID
         [3] => VOID
         [4] => VOID
         [5] => 41
         [6] => 1
         [7] => VOID
      )

)
 

[objnoob]

if the values are string void

<?php
     foreach($yourArray as $k0=>$innerArray){
             foreach($innerArray as $k1=>$value){
                   if(strtolower($value) === 'void') unset($yourArray[$k0][$k1]);
             } 
             # will reindex array:
             $yourArray[$k0] = array_values($yourArray[$k0]);
     }

if the values are actually null

<?php
     foreach($yourArray as $k0=>$innerArray){
             foreach($innerArray as $k1=>$value){
                   if($value == null) unset($yourArray[$k0][$k1]);
             } 
             # will reindex array:
             $yourArray[$k0] = array_values($yourArray[$k0]);
     }

You could also look into the array_filter() function  http://us2.php.net/array_filter

[mac_gyver]

i would write a call-back function to unset() the element based on the value, whatever it actually is, and use array_walk_recursive() to apply that function to every level/element of the array.

[mac_gyver]

edit to the above: because of the way unset() works, what i suggested above won't work without using the $GLOBALS array, which we should probably forget exists.

[mac_gyver]

assuming your void are actually nulls and the data is in $data -

$data = array_map('array_filter',$data);

[Barand]

if they are string value 'VOID'

foreach ($data as $arr) {
    $newdata[] = array_values(array_filter($arr, function($a){return $a != 'VOID';}));
}
$newdata = array_filter($newdata);