title: codeigniter $this->post->input is not posting full value
body: <p>I have a  text area for uploading embed code. when i post a embed code it is not posting full code.
  this is my embed code </p>
  
  <pre><code>&lt;iframe frameborder="0" width="480" height="308" src="http://www.dailymotion.com/embed/video/xt7dgo?autoplay=0&amp;logo=0&amp;hideInfos=1&amp;start=0&amp;syndication=108944&amp;foreground=%23F7FFFD&amp;highlight=%23FFC300&amp;background=%23171D1B"&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>This is my php code to get this .</p>
  
  <pre><code>public function embeded(){
      $this-&gt;form_validation-&gt;set_rules('video_heading', 'Video heading', 'required|trim|xss_clean');
      $this-&gt;form_validation-&gt;set_rules('embeded', 'Embeded code', 'required|trim|xss_clean');
      $this-&gt;load-&gt;model('videos');
      $error['error']="";
      if ($this-&gt;form_validation-&gt;run() == FALSE)
      {
          $error['error']= validation_errors();
          $this-&gt;load-&gt;view('sidebar');
          $this-&gt;load-&gt;view('addvideo', $error);
          $this-&gt;load-&gt;view('footer');
      }else{
          //&lt;iframe width="420" height="315" src="http://www.youtube.com/embed/Niiyh3sxwYk" frameborder="0" allowfullscreen&gt;&lt;/iframe&gt;
          $plink=$this-&gt;videos-&gt;processlink($this-&gt;input-&gt;post('embeded'));
          $info = array('heading'=&gt;$this-&gt;input-&gt;post('video_heading'),
          'status'=&gt;$this-&gt;input-&gt;post('status'),'video'=&gt;$plink,
          'comment'=&gt;$this-&gt;input-&gt;post('comment'),'category'=&gt;$this-&gt;input-&gt;post('category'));   
          $this-&gt;load-&gt;model('videos');
          $obj= (object)$info;
          echo "opsted_link".str_replace("syndication","syndicate", $_POST['embeded']);
          if(isset($_POST['embeded']))
           {
                echo $_POST['embeded'];exit;
           }
          //$this-&gt;videos-&gt;addembededvideo($obj);
      }
  
  }
  </code></pre>
  
  <p>When i use it i get the i frame code partially like this.</p>
  
  <pre><code>&lt;iframe frameborder="0" width="480" height="308" src="http://www.dailymotion.com/embed/video/xt7dgo?autoplay=0&amp;logo=0&amp;hideInfos=1&amp;start=0&amp;syndicati&gt;&lt;/iframe&gt;
  </code></pre>
  
  <p>i changed a parameter syndication=108944 in the src to syndicator=108944.</p>
  
  <p>Now i get the full url ! </p>
  
  <p>is "syndication" is any reserved word?
  Why this happen?</p>