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How do I send a request (post or get) without leaving the page?

Posted on 2008-06-25
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Last Modified: 2013-12-12
I am querying a MySQL database for events that need to be run on another server. When an event time comes up I need to send a request (either post or get) to the other server to start that event. There may be more than one event to be started at the same time. I need to check for events to be run up to 15 minutes prior to the event time.

Here is what I have so far:
// Check for events to be run
	$strSQL = "SELECT * from tblque WHERE EventDate = CURDATE() AND EventRun = '0' AND (EventTime >= CURTIME() AND EventTime <= ADDTIME(CURTIME(), '15:00'))";
//	echo $strSQL;
	$resultr = mysql_query($strSQL);
	while ($rowRun = mysql_fetch_array($resultr)) {
	
		if  (mysql_num_rows($resultr) > 0) {
			echo "RUN EVENT"; //HTTP request here
			
//			echo "<meta http-equiv=\"refresh\" content=\"0;URL=http://test.php?action=edit&EventID=" . $rowRun['EventID'] . "\">";
			
		}
		else {
			echo "NO EVENTS";
		}
	}

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Question by:Jeff
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6 Comments
 
LVL 10

Expert Comment

by:margajet24
ID: 21871751
<\!--
function ajaxFunction(){
        var ajaxRequest;
       
        try{
                ajaxRequest = new XMLHttpRequest();
        } catch (e){
                try{
                        ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
                } catch (e) {
                        try{
                                ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
                        } catch (e){
                                alert(\"Your browser broke\!\");
                                return false;
                        }
                }
        }
        ajaxRequest.onreadystatechange = function(){
                if(ajaxRequest.readyState == 4){
                         var temp;
                         temp = ajaxRequest.responseText;
                        ‘ results from the page
                }
        }
        ajaxRequest.open(\"GET\", \"serverTime2.cgi?abc=2&def=3\", true);
                                                                 ‘ put here the php page youre trying to access passing also
                                                                    the values you want to pass
        ajaxRequest.send(null);
}
//-->
0
 
LVL 10

Expert Comment

by:margajet24
ID: 21871763
you can execute a script / somewhat like activate "submit" without leaving the page using AJAX

please see this..

http://www.w3schools.com/ajax/default.asp
0
 

Author Comment

by:Jeff
ID: 21878877
Thanks for the quick response. I am an intermediate, at best, with php and can barely fumble my way through java, so you may need to hold my hand a bit.

The code you wrote, is that java? if so, how do I include it in the php code?

<?php 
if  (mysql_num_rows($resultr) > 0) {
// end PHP here
?>
 
<\!-- 
function ajaxFunction(){
        var ajaxRequest;
        
        try{
                ajaxRequest = new XMLHttpRequest();
        } catch (e){
                try{
                        ajaxRequest = new ActiveXObject("Msxml2.XMLHTTP");
                } catch (e) {
                        try{
                                ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
                        } catch (e){
                                alert(\"Your browser broke\!\");
                                return false;
                        }
                }
        }
        ajaxRequest.onreadystatechange = function(){
                if(ajaxRequest.readyState == 4){
                         var temp;
                         temp = ajaxRequest.responseText;
                        ‘ results from the page
                }
        }
        ajaxRequest.open(\"GET\", \"serverTime2.cgi?abc=2&def=3\", true);
                                                                 ‘ put here the php page youre trying to access passing also
                                                                    the values you want to pass
        ajaxRequest.send(null); 
}
//-->
			
<?php			
// Start PHP here
}

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An important part of learning any new piece of software is understanding the terminology it uses. Thankfully WordPress uses fairly simple names for everything that make it easy to start using the software.

 
LVL 10

Expert Comment

by:margajet24
ID: 21879877
it is a javascript..
0
 
LVL 10

Expert Comment

by:margajet24
ID: 21879952
treat it like a part of the html codes..

ex
<html>
<body>

<script type="text/javascript">
// java script

</script>
</body>
</html>
0
 

Accepted Solution

by:
Jeff earned 0 total points
ID: 21888110
Thanks for the help, margajet24. I found the exact solution here:
http://www.askapache.com/htaccess/sending-post-form-data-with-php-curl.html

<?php
 
 $ch = curl_init('http://www.mysite.com/index.php?option=com_content&task=blogcategory&id=24&Itemid=55');
 curl_exec ($ch);
 curl_close ($ch);
 
?>

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