CODEWITHSUNDEEP
phpjavascript
hfarazm
hfarazm

Reputation: 1417

Trouble getting php data from database through javascript function

On my php site, I want to retrieve data every three seconds from a mysql database using javascript.

Problem: when I retrieve data using SELECT * from msgtable, then neither php nor javascript startTime seems to work.

JavaScript:

setInterval(function() {
   var link = document.getElementById("chg");
   link.href = "http://google.com.pk";
   link.innerHTML = "<?php  dynamic(); ?>"; 
}, 3000);

function startTime() {
   var today = new Date();
   var s = today.getSeconds();
   s = checkTime(s);

   if( s == s+3 ) { alert("faraz"); }
   document.getElementById('time').innerHTML= s;
   t = setTimeout( function() { startTime() }, 500 );
}

function changeURL() {
   var link = document.getElementById("chg");
   link.href = "http://google.com.pk";
   link.innerHTML = "Google Pakistan"; 
}

function checkTime( i ) {
   if ( i < 10 ) {
      i = "0" + i;
   }
   return i;
}

php:

<?php 
    $connection = mysql_connect("localhost","root","");
    $db_select = mysql_select_db("msgs",$connection);  
    $result = mysql_query("SELECT * FROM msgtable", $connection);

    function dynamic() {
        echo "faraz";

        while ( $row = mysql_fetch_array( $result ) ) {
        echo $row['msgBody'] ;
        }   
    }
?>

HTML:

<body onLoad="startTime()">
    <div id="chg1"> 3 Seconds to Google Pakistan  </div>
    <a href="http://google.it" id="chg">Google Italia</a>
    <!-- Hafiz Faraz Mukhtar-->
    <div id="time"> Time </div>
    <div class="publicOut">Faraz</div>
</body>

Upvotes: 0

Views: 477

Answers (2)

Jijo John
Jijo John

Reputation: 1375

You need to use normal ajax or jquery ajax for this .Use javascript setInterval() function for setting an interval

Here is a sample jquery ajax method 

        function request()
         {
           $.ajax ({
           url : "";
           data : {},
           dataType : "" ,
           success : function(success) {} ,
           error : function() {}
           });
         }

setInterval() Syntax

     setInterval(request,3000);  // in milliseconds

Upvotes: 1

Seth
Seth

Reputation: 1373

You can't call a PHP function through JavaScript like this:

link.innerHTML = "<?php  dynamic(); ?>";

You will need to make an AJAX call to run the PHP script and return the result. I would recommend using jQuery and $.ajax, which makes this very easy.

http://api.jquery.com/jQuery.ajax/

Upvotes: 1

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