title: how can i replace content of text area by PHP script in below mentioned code
body: <p>I have taken 2 text boxes and 1 text area
  User will be to search the content through search box
  and provides by which word it should be replaced.</p>
  
  <p>Scenerio 1 :</p>
  
  <p>I want to replace "Good" with word "bad"<br>
  But this code does not replace the text area content.
  It rather appends with the new replaced string</p>
  
  <p>what's the solution ??</p>
  
  <pre><code>&lt;body&gt;
  
  &lt;form id="form1" name="form1" method="post" action=""&gt;
  
  &lt;p&gt;
  &lt;label for="search"&gt;Search :&lt;/label&gt;
  &lt;input type="text" name="search" id="search" /&gt;
  &lt;/p&gt;
  
  &lt;p&gt;
  &lt;label for="replace"&gt;Replace&lt;/label&gt;
  &lt;input type="text" name="replace" id="replace" /&gt;
  &lt;/p&gt;
  
  &lt;p&gt;&lt;Br /&gt;
  &lt;input type="submit" name="submit" id="submit" value="Submit" /&gt;
  &lt;label for="textarea"&gt;&lt;/label&gt;
  &lt;/p&gt;
  
  &lt;p&gt;&lt;br /&gt;
  &lt;textarea name="textarea" id="textarea" cols="45" rows="5"  &gt;
  "Good morning how are you today are you feeling Good.";
  &lt;?php
  
  if(isset($_POST["submit"]))
  {
       $search = $_POST["search"];
   $replace = $_POST["replace"];
   $textarea = $_POST["textarea"];
  
   $newtext = str_replace($search,$replace,$textarea);
       echo $newtext;
  
  }
  
  ?&gt;
     &lt;/textarea&gt;
    &lt;/p&gt;
  &lt;/form&gt;
  
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>