title: Cannot find min value in array to specific index
body: <p>I have an array that have this structure:</p>
  
  <pre><code>[
      {
          "id": "434073",
          "first_name": "Lucio Emanuel",
          "last_name": "Chiappero",
          "age": "24"
      },
      {
          "id": "330125",
          "first_name": "Luis Ezequiel",
          "last_name": "Unsain",
          "age": "23"
      }
  </code></pre>
  
  <p>my goal is search the player which have the minimum age, that in this case is 23, so <code>Luis Ezequiel</code>. </p>
  
  <p>So I tried this code:</p>
  
  <pre><code>$index = array_search(min($players["age"]), $players);
  </code></pre>
  
  <p>the problem's that <code>$index</code> will return <code>false</code>, and this is really weird, because the <code>array_search</code> should find the index of the player which have <code>min</code> at the <code>age</code> key. </p>