PHP - Deleting an entry from a multidimensional array

Question

I have an array like this:

$_SESSION['food'] = array( 

// ARRAY 1
array(
      "name" => "apple",
      "shape" => "round",
      "color" => "red"
  ),

// ARRAY 2
   array(
      "name" => "banana",
      "shape" => "long",
      "color" => "yellow"
  )
);

I want to search through all keys in all child arrays and delete the entire child array if the search term is found.

So, basically:

If searching for "long", the entire Array 2 is removed.
If searching for "apple", the entire Array 1 is removed.

How would I accomplish this?

Thanks!

Thanks everyone. I couldn't get any of the examples to work, but in the end I sorted it out by assigning each child array an associative key, which made it simple for me to find out the sub-array I need to delete. Thanks! — RCWH
– RCWH, Commented Jan 24, 2011 at 19:12

mfonda · Accepted Answer · 2011-01-24 18:36:55Z

1

This should do the trick:

foreach ($array as $key => $value) {
    foreach ($value as $child_value) {
        if ($child_value == $search_term) {
            unset($array[$key]);
            continue 2;
        }
    }
}

answered Jan 24, 2011 at 18:36

mfonda

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Comments

johankj · Accepted Answer · 2011-01-24 18:39:10Z

0

Depending on how many dimensions you have, you can use array_search.

I haven't tested the following, but it should work:

$unset = array_search('apple', $_SESSION['food']);
unset($_SESSION['food'][$unset]);

answered Jan 24, 2011 at 18:39

johankj

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1 Comment

Joel Over a year ago

This would not work. Array_search only searches the first level of an array.

Joel · Accepted Answer · 2011-01-24 18:39:45Z

0

Here you go:

<?php
function deleteObjWithProperty($search,$arr)
  {
  foreach ($arr as &$val)
    {
    if (array_search($search,$val)!==false)
      {
      unlink($val);
      }
    }
  return $arr;
  }
?>

answered Jan 24, 2011 at 18:39

Joel

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Comments

NavaStha · Accepted Answer · 2013-09-25 12:09:49Z

0

$_SESSION['food'] = array( 

// ARRAY 1
array(
      "name" => "apple",
      "shape" => "round",
      "color" => "red"
 ),

// ARRAY 2
array(
     "name" => "banana",
     "shape" => "long",
     "color" => "yellow"
  )
);

echo '<pre>'.print_r($_SESSION['food']).'</pre>';

$arr_food = array();
$search_term = 'apple';

foreach($_SESSION['food'] AS $arr) {
   if($arr['name'] == $search_term) {
    unset($arr);
  }
$arr_food[] = $arr;
}

$_SESSION['food'] = $arr_food;
echo '<pre>'.print_r($_SESSION['food']).'</pre>';

answered Sep 25, 2013 at 12:09

NavaStha

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