<?php 
$str = 'Kurtlar Vadisi - \u00c7ak\u0131r Tombalac\u0131dan \u0130ntikam\u0131n\u0131 Al\u0131yor ..';

 $a = '{"icerik":"'.$str.'"}'; 
 $b = json_decode($a); 
echo $b->icerik; 
?>