jQuery to Retrieve Server's Current Time

In this first jQuery tutorial we will develop a simple program that retrieves the current time from server and displays on the user browser.

jQuery to Retrieve Server's Current Time

jQuery to Retrieve Server's Current Time

     

In this first jQuery tutorial we will develop a simple program that retrieves the current time from server and displays on the user browser. In this example we will be calling a server side PHP script to get the current server time. You can easily replace PHP with JSP, or ASP program.

Steps to develop the Current Server Time program

Step 1:

 

 

 

Create php file to that prints the current server data. Here is the code of PHP script (time.php).

<?
$time_now=mktime(date('h')+5,date('i')+30,date('s'));

print $time_now=date('l M dS, Y, h:i:s A',$time_now);
?>

Step 2:

Write HTML page to call the time.php. Create a new file (currentservertime.html) and add the following code into it:

<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">

  <head>

  <title>Current Date and Time</title>

  <script type="text/javascript" src="jquery-1.2.6.js"></script>

   <script type="text/javascript"> 

  function  timeExam()

  {

$.ajax({

url : "time.php",

success : function (data) {

$("#contentArea").html(data);

}

});

setTimeout("timeExam()", 1000);

  }


   </script> 

  </head>

  <body onload="timeExam();">

   <table width="100%">
   <tr><td  width="100%" align="center">
   <div id="contentArea" style="color:blue;font:bold 14px arial;padding-top:140px;"> 
   </div> 
   </td>
  </tr>
   </table>
  </body>
   </html>

Program explanation:

The following code includes the jQuery JavaScript library file:

<script type="text/javascript" src="jquery-1.2.6.js"></script>

On body load timeExam() funcation is called:

<body onload="timeExam();">

The code

$.ajax({

url : "time.php",
...

makes ajax call to time.php file.

Following code intercepts the ajax call success and then sets the data into "contextArea" div:

success : function (data) {

$("#contentArea").html(data);

}

});

When you run the program in browser it will look like following screen shot:

 

Check online demo of the application

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