jQuery - jQuery.post() Method


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Description

The jQuery.post( url, [data], [callback], [type] ) method loads a page from the server using a POST HTTP request.

The method returns XMLHttpRequest object.

Syntax

Here is the simple syntax to use this method −

$.post( url, [data], [callback], [type] )

Parameters

Here is the description of all the parameters used by this method −

  • url − A string containing the URL to which the request is sent

  • data: − This optional parameter represents key/value pairs or the return value of the .serialize() function that will be sent to the server.

  • callback: − This optional parameter represents a function to be executed whenever the data is loaded successfully.

  • type: − This optional parameter represents a type of data to be returned to callback function: "xml", "html", "script", "json", "jsonp", or "text".

Example

Assuming we have following PHP content in result.php file −

<?php
if( $_REQUEST["name"] )
{
   $name = $_REQUEST['name'];
   echo "Welcome ". $name;
}
?>

Following is a simple example a simple showing the usage of this method −

<html>
   <head>
      <title>The jQuery Example</title>
      <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js"></script>
		
      <script type="text/javascript" language="javascript">
         $(document).ready(function() {
			
            $("#driver").click(function(event){
				
               $.post( 
                  "result.php",
                  { name: "Zara" },
                  function(data) {
                     $('#stage').html(data);
                  }
               );
					
            });
         });
      </script>
		
   </head>
	
   <body>
	
      <p>Click on the button to load result.html file −</p>
		
      <div id="stage" style="background-color:cc0;">
         STAGE
      </div>
		
      <input type="button" id="driver" value="Load Data" />
		
   </body>
	
</html>

This should produce following result −


jquery-ajax.htm