title: Can't decode JSON value in PHP
body: <p>I found no solution for this.</p>
  
  <p>I have an API witch give me JSON resposne,</p>
  
  <p><a href="http://api.vajehyab.com/v2/public/?q=%D8%B3%D9%84%D8%A7%D9%85&amp;developer=stackoverflow" rel="noreferrer">http://api.vajehyab.com/v2/public/?q=%D8%B3%D9%84%D8%A7%D9%85&amp;developer=stackoverflow</a></p>
  
  <p>which is something like this,</p>
  
  <blockquote>
    <p>{"search":{"q":"\u0633\u0644\u0627\u0645","code":200},"data":{"title":"\u0633\u0644\u0627\u0645","pronunciation":"","text":"(\u0633\u064e) [ \u0639 . ] (\u0645\u0635 \u0644 .) 1 - \u062f\u0631\u0648\u062f \u06af\u0641\u062a\u0646 . 2 -  \u0628\u06cc \u06af\u0632\u0646\u062f \u0634\u062f\u0646 . 3 - \u06af\u0631\u062f\u0646 \u0646\u0647\u0627\u062f\u0646 .  \u061b ~ \u0639\u0644\u06cc\u06a9 \u062f\u0631\u0648\u062f \u0628\u0631 \u062a\u0648 \u0628\u0627\u062f.  \u061b ~ \u0639\u0644\u06cc\u06a9\u0645  \u062f\u0631\u0648\u062f \u0628\u0631 \u0634\u0645\u0627. ","source":"\u0641\u0631\u0647\u0646\u06af \u0641\u0627\u0631\u0633\u06cc \u0645\u0639\u06cc\u0646 | \u0648\u0627\u0698\u0647 \u06cc\u0627\u0628","permalink":"?q=%D8%B3%D9%84%D8%A7%D9%85"},"error":{"message":"","reason":""},"ads":{"text":"","url":""}}</p>
  </blockquote>
  
  <p>It doesn't seem to have problem ,I can decode it in other tools but PHP, I can't decode it in PHP</p>
  
  <pre><code>$json = file_get_contents('http://api.vajehyab.com/v2/public/?q='.urlencode('سلام').'&amp;developer=stackoverflow');
  var_dump(json_decode($json)); // null
  </code></pre>
  
  <p>I hope somebody could help me with this, 
  thank you...</p>