How to find array ID based on value

Question

What am I doing wrong? How do I get the number of the array so I can I assign the proper salesman for the city selected? In this example I would want to get 1, since Ambler is the city I'm looking for.

    $cities = array (
  0 => array("Aldenville", "Analomink"),
  1 => array("Abington", "Ambler", "Ardmore", "Avondale"),  
  2 => array("Ackermanville", "Albrightsville", "Allens Mills", "Alpha"),
  3 => array("Adamstown", "Alburtis", "Allentown"));   

if (($key = array_search("Ambler", $cities)) === false) {
    echo "Not found";
} else{
    echo $key;
}

`$cities` is an array of arrays. `array_search` finds values directly within the given array. — Jeto, Dec 01 '18 at 19:38
`array_search` does not work for multi-dimensional arrays. If you search for "search multi dimensional array", you'll find this is a duplicate. — random_user_name, Dec 01 '18 at 19:38
Every element in `$cities` is array - you want to search for "Ambler" for each array inside `$cities` — dWinder, Dec 01 '18 at 19:39
(NOTE: in the duplicate link above, I would recommend _this_ particular answer: https://stackoverflow.com/a/24527099/870729) — random_user_name, Dec 01 '18 at 19:39
I was missing a closing ); So now I'm not getting an error, but how do I search through each sub array to get the key? — Scotty Gdog, Dec 01 '18 at 20:13

score 0 · Answer 1 · answered Dec 01 '18 at 19:41

0

You need to add a search level. You made a 2D-Array of cities, but you're searching in 1D. When you search for a specific city, you have search for every (sub)array in the array '$cities'

answered Dec 01 '18 at 19:41

J.D.

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Welcome. This should be posted as a comment (above), not as an answer. – Jeto Dec 01 '18 at 19:43
Can you show me an example of how to do that? – Scotty Gdog Dec 01 '18 at 20:14

How to find array ID based on value

1 Answers1