Php Get the key of a array based in a string [duplicate] - php

Question

This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How to search by key=>value in a multidimensional array in PHP
PHP search for Key in multidimensional array
How can I search in a array values and get the key?
Example:
search for id 1 = key 0
or
search for name Frank = key 1
Array
(
[0] => Array
(
[id] => 1
[name] => Bob
[url] => http://www.bob.com.br
)
[1] => Array
(
[id] => 2
[name] => Frank
[url] => http://www.frank.com.br
)
)
Thks.
Adriano

Answer 1

Use array_search
foreach($array as $value) {
$result = array_search('Frank', $value);
if($result !== false) break;
}
echo $result

Answer 2

If you do not know the depth, you can do something like the following, which employs the use of RecursiveIteratorIterator and RecursiveArrayIterator:
<?php
/*******************************
* array_multi_search
*
* #array array to be searched
* #input search string
*
* #return array(s) that match
******************************/
function array_multi_search($array, $input){
$iterator = new RecursiveIteratorIterator(new RecursiveArrayIterator($array));
foreach($iterator as $id => $sub){
$subArray = $iterator->getSubIterator();
if(#strstr(strtolower($sub), strtolower($input))){
$subArray = iterator_to_array($subArray);
$outputArray[] = array_merge($subArray, array('Matched' => $id));
}
}
return $outputArray;
}

Answer 3

don't think there is a predifned function for that,
but here is one:
function sub_array_search($array, $sub_key, $value, $strict = FALSE)
{
foreach($array as $key => $sub_array)
{
if($sub_array[$sub_key] == $value)
{
if(!$strict OR $sub_array[$sub_key] === $value)
{
return $key;
}
}
}
return FALSE;
}