title: How to convert an array of number base 10 to base 16 use array_map and intval?
body: <p>I try to convert an array of number to base 16 use <code>intval</code> and I want learn how to pass second argument to interval, in default <code>intval</code> use base 10.</p>
  
  <pre><code>array_map('intval', [1, 2, "12", "15" , "99"]);
  </code></pre>
  
  <p>Before I search in google and read php.net document but can't solve this problem.</p>