asked on

Remove element from an array.

Cannot see the wood for the trees, so this is going to be some EASY points!

I have a dynamic array; i.e. at RUNTIME, values are added and removed.

Well, added is OK.

$a_Array[] = 'value';

By using in_array() I know if the value is already in the array.

How do I remove the value from the array? I have a stupidly convoluted way...

Get the key of the value and then unset that element.

<?php
$a = array('one','two',4 => 'three', 3 => 'four'); // NOT a typo!!!!
unset($a[reset(array_keys($a, 'three', True))]);
var_export($a);
?>

This is OK, the output is ...

array (
0 => 'one',
1 => 'two',
3 => 'four',
)

but ...

Strict Standards: Only variables should be passed by reference on line 3

So, I suspect there is really a array_remove(&$array, $value) function SOMEWHERE.

ASKER CERTIFIED SOLUTION

Aamir Saeed

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SOLUTION

elfe69

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SOLUTION

Cornelia Yoder

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Richard Quadling

ASKER

Doh.

Ok. That was WAY too easy!

/**
* array array_remove ( array input, mixed search_value [, bool strict] )
**/
function array_remove(array &$a_Input, $m_SearchValue, $b_Strict = False)
      {
      $a_Keys = array_keys($a_Input, $m_SearchValue, $b_Strict);
      foreach($a_Keys as $s_Key)
            {
            unset($a_Input[$s_Key]);
            }
      return $a_Input;
      }