what is wrong with the code

[ahmedwaseem2000]

Can any one tell me why is this function call not working(this function is a php function)

echo "<script >var cnfrm=confirm('Are you sure to enter blank codes for Case:$case_id Subcase:$subcase_id?'); ";
echo"if(!cnfrm){ 'update_blankvlaues() '}</script>";

function update_blankvlaues()
{

echo("TEST");

}

[sned]

PHP is a server-side language, meaning all the code gets read before it is even sent out, while the script is client side ... so while PHP can create scripts, these scripts can't call php functions, unless you use something like xmlhttprequest.

-sned

[ahmedwaseem2000]

an example would be of a great help!

[sned]

Ok, here's something I use to do some goofy session stuff (changed to use your function name):

The javascript:
function getHTTPObject() {
if(window.XMLHttpRequest){
req = new XMLHttpRequest();
}
else if(window.ActiveXObject){
req = new ActiveXObject("Microsoft.XMLHTTP");
}
return req;
}

function update_blankvalues(sendpage, params){
if(http.readyState == 4 ¦¦ http.readyState == 0){
http.open("GET", sendpage + params, true);
http.onreadystatechange = handleGet;
http.send(null);
}
}

//deals with the servers' reply to requesting new content
function handleGet(){
if(http.readyState == 4){
if(http.status == 200){
alert(http.responseText);
}
}
}

var http = getHTTPObject();

The code to call the function:
echo "<script >var cnfrm=confirm('Are you sure to enter blank codes for Case:$case_id Subcase:$subcase_id?'); ";
echo"if(!cnfrm){ 'update_blankvalues('mypage.php','?somevariable=$somevalue') '}</script>";

Then, in mypage.php:

$somevariable = $_GET['somevariable'];
do some stuff with this value (insert into db, etc)
echo "test";

That's about the simplest example I can think of of an XMLHttprequest ....

[ahmedwaseem2000]

Hi - Thanks SNED.

But i felt its too complicated for me as i am a rookie- However i have something here can any one let me know what am i doing wrong here- I am trying to stop the execution of the function when if condition is executed(that is page is redirected to userview.php). Indeed it is redirecting when clicked cancel but as well executing the rest of the php code as well. How am i going to stop the execution of the php code in the function?

function update_blankvlaues($comments,$curr_mod_date,$curr_FY,$curr_halfyear,$curr_quarter,$curr_week_no,$case_id,$subcase_id
)
{
echo"<script>var cnfrm=confirm('Blank Code values for the Case:$case_id Subcase:$subcase_id');";
echo"if(!cnfrm)";
//echo"<!--\n";
echo"window.location = 'userview.php'\n;";
//echo"//-->}";
echo"</script>";
//Define connection settings
if(!$conn){
include('config.inc.php');
$conn=@mysql_connect( "localhost", "$qaft_db" ,"$qaft_pass" ) or die ("Err:Conn");
$rs= @mysql_select_db ("$qaft_db", $conn) or die ("Err:Db");
}