Comments on: Remove an Item From an Array By Value

By: Gherald

Gherald — Wed, 03 Mar 2010 01:37:02 +0000

This also fails if ‘value’ is the zeroeth entry in $array.

I.e.

$array = array(‘value’, ‘someothervalue’);

Will not be filtered to array(‘someothervalue’), because zero evaluates as false.

By: Danish Jamil

Danish Jamil — Sun, 17 Jan 2010 12:15:22 +0000

function removeArrayKey($array,$toSearch,$innerSearchArrayKey){
$arrayCount = count($array);
if($arrayCount>0) {for($i=0;$i0)?$array:false; }else{ return false; } }

By: Danish Jamil

Danish Jamil — Sun, 17 Jan 2010 12:09:28 +0000

$array = array(0=>array('avatar_id'=>1, 'quantity'=>4), 1=>array('avatar_id'=>1, 'quantity'=>4), 2=>array('avatar_id'=>3, 'quantity'=>4));


function removeArrayKey($array,$toSearch,$innerSearchArrayKey){

	$arrayCount = count($array);

	if($arrayCount>0){

		for($i=0;$i0)?$array:false;

}else{ return false; } }

By: simen

simen — Thu, 14 Jan 2010 04:09:19 +0000

as described on php.net on preg_grep;

$nomatch = preg_grep(“/{$keyword}/i”,$array,PREG_GREP_INVERT);

$nomatch returns array without $keywords.

By: Sounds

Sounds — Fri, 18 Dec 2009 21:39:58 +0000

__fabrice hit the nail on the head. It doesn’t even need to incur the overhead of an additional function, it’s a one function call. I prefer writing it without casting. Also handles removing more than a single value at once and keeps indexes. Can reset indexes later if you want.

array_diff($orig_array, array($value_to_remove));

By: __fabrice

__fabrice — Thu, 17 Dec 2009 14:55:12 +0000

Hi,

And this is too simple ? :

$search_array = array('gif', 'jpg', 'png'); $item = 'png'; $rez= removeItemFromArray($search_array,$item);


var_dump($rez);

function removeItemFromArray($list, $item) { return array_diff($list, (array)$item); }

Fab

By: Dan

Dan — Fri, 20 Nov 2009 15:40:28 +0000

In PHP 5.3:

$array=array_filter($array, function($value)
{
if($value==”get rid of this”)
{
return false;
}

return true;
});

By: Chetan

Chetan — Thu, 03 Sep 2009 08:55:39 +0000

Good

By: Bill Brown

Bill Brown — Fri, 31 Jul 2009 13:12:18 +0000

Sigh. With escaped entities this time.


error_reporting(E_ALL);
# remove by key:
function array_remove_key ()
{
  $args  = func_get_args();
  if (empty($args[0]) || !is_array($args[0])) return false;
  return array_diff_key($args[0],array_flip(array_slice($args,1)));
}
# remove by value:
function array_remove_value ()
{
  $args = func_get_args();
  if (empty($args[0]) || !is_array($args[0])) return false;
  return array_diff($args[0],array_slice($args,1));
}
$myArray = array('item1', 'item2', 'item3','item1', 'item2', 'item3','...');
$myArray = array_remove_value($myArray,'item2');
echo '',print_r($myArray,TRUE),'';
$myArray = array('item1', 'item2', 'item3','item1', 'item2', 'item3','...');
$myArray = array_remove_value($myArray,'item1','item3');
echo '',print_r($myArray,TRUE),'';

By: Bill Brown

Bill Brown — Fri, 31 Jul 2009 13:10:25 +0000

What about something like this:


error_reporting(E_ALL);
# remove by key:
function array_remove_key ()
{
  $args  = func_get_args();
  if (empty($args[0]) || !is_array($args[0])) return false;
  return array_diff_key($args[0],array_flip(array_slice($args,1)));
}
# remove by value:
function array_remove_value ()
{
  $args = func_get_args();
  if (empty($args[0]) || !is_array($args[0])) return false;
  return array_diff($args[0],array_slice($args,1));
}
$myArray = array('item1', 'item2', 'item3','item1', 'item2', 'item3','...');
$myArray = array_remove_value($myArray,'item2');
echo '',print_r($myArray,TRUE),'';
$myArray = array('item1', 'item2', 'item3','item1', 'item2', 'item3','...');
$myArray = array_remove_value($myArray,'item1','item3');
echo '',print_r($myArray,TRUE),'';


And incidentally, there's an error on Line 3 of the second block of code in the article. Emptyempty isn't a function.