CODEWITHSUNDEEP
phparrays
Towfiq
Towfiq

Reputation: 425

Update a value of a specific key of an associative array

I am trying to update a value of a specific key of an associative array with a form.

This is how my form looks:

<form class="wpd_edit_note_322" method="post" action="">
<input type="hidden" id="list_note" name="list_note" value="ba222f06db">
<p><textarea id="plugn_note" name="plugin_note" placeholder="Note(Optional)" ></textarea></p>
<p><input class="list_note_id" name="plugin_note_id" type="hidden" value="322"></p>
<p><input class="list_edit_button" type="submit" value="Save"></p>

</form>

and this is how I am trying to update the value of key 322 on submit:

    if ( isset( $_POST['list_note'] ) && wp_verify_nonce($_POST['list_note'],'edit_item_note') )
    { 


        $add_to_ID = $_POST['plugin_note_id'];
        $note = $_POST['plugin_note'];


        $existing_list = Array ( 
    [0] => Array ( [320] => This is the plugin that I am using on my site. ) 
    [1] => Array ( [322] => My Microblog poster bla blah bla. ) 
    [2] => Array ( [318] => ) 
    );
foreach ( $existing_list as $k => $v ) {
      $existing_list[$k][$add_to_ID] = $note;
        } 
}

I see the $_POST values when I echo it out. so I guess the form is working but the foreach loop is not working properly.

I also tried to use array_walk_recursive() instead of the foreach loop, mentioned here with no avail: How to change the value of an specific associative array in PHP?

Can someone help me out?

Thanks

Upvotes: 0

Views: 957

Answers (1)

rocknrollcanneverdie
rocknrollcanneverdie

Reputation: 442

Your code actually adds the array($add_to_ID => $note) to every element of the $existing_list array, but it changes the one with the index 322. Try something like this:

foreach ($existing_list as $key => $value) {
    if (isset($value[$add_to_ID])) {
        $existing_list[$key][$add_to_ID] = $note;
        break;
    }    
}

Upvotes: 1

Related Questions