title: PHP function array_search() doesn't work with variable
body: <p>Function <code>array_search</code> works only with digits and not with variables eg.</p>
  
  <pre><code> $key = array_search(2345632, $rozm);
  </code></pre>
  
  <p>But I need it to get the number from the variable like</p>
  
  <pre><code>$key = array_search($ro, $rozm);
  </code></pre>
  
  <p>But it doesn't work.</p>