Using the POST function

[Nixon]

Hi I want to transfer a variable from one page to the other using a post function, or thats what I think i need to use anyway. My link is this:

<a href="deductpoint.php?UserId=$outwarname">$outwarlink</a>

and Im not 100% sure how to transfer it onto the next page, could somebody please explain?

Thanks, Nixon.

[sledgeweb]

This isn't a POST method. This is simple passing variables in the URL, similar to what the GET method does on forms.

When you do this, the variable is passed as part of the URL string. You can access it on the new page in PHP like so:

$new = $_GET['UserId'];

If REGISTER GLOBALS is turned on, then you can access your variable on ther new page simply:

$new = $UserId;

-Sledge

[Nixon]

Hi, its still not working how could I check to see if the GLOBAL thing is set?

Thanks, Nixon

[kevinsequeira]

type phpinfo(); on your page, it will display your settings

reg
kevin

[Nixon]

Hey, globals are registered but its still not working. Here is my code:

<?php

//Connect to database

include("connectdb.inc.php"); 

//Find the top five users in the database

$querytop= mysql_query( "select outwarusername, outwarlink, points, clicks from outwarinfo order by points desc limit 5" );

while ( $row=mysql_fetch_array($querytop)  )
{

//Add all the results to variables for easy acccess

$outwarname=$row[outwarusername];
$outwarlink=$row[outwarlink];
$outwarpoints=$row[points];
$outwarclicks=$row[clicks];

//Print the table with all the variables in it,also store information for point deducting

print 	"<table><tr><td width=150>$outwarname</td><td width=300><a href=\"testindex.php?UserId=$outwarname\" 
		target=\"_blank\">$outwarlink</a></td><td width=100>$outwarpoints</td><td width=\"100\">$outwarclicks
		</td></tr></table>";
}

//Set id to null out of the loop

$id=0;

?>

Recieving script:

deductpoint.php

<?php

$userid=$_GET['UserId'];

include ("connectdb.inc.php");

//Deduct point from user

$queryusername=mysql_query( "select points from outwarinfo where outwarusername=\"$userid\" " ) or die ("Sorry could not select user");

$getusernamearray=mysql_fetch_array($queryusername) or die("Sorry could not fetch array");

$pointsuser=$getusernamearray[points];

$pointdeduct=1;

$newpointamount=$pointsuser - $pointdeduct;

mysql_query("update outwarinfo set points=$newpointamount where outwarusername=\"$userid\" ") or die ("Sorry could not update points");

//Add one to clicks column

$addclickquery=mysql_query( "select clicks from outwarinfo where outwarusername=\"$userid\" " ) or die ("Sorry could not select clicks");

$addclickarray=mysql_fetch_array($addclickquery) or die("Sorry could not fetch click array");

$clickuser=$addclickarray[points];

$clickadd=1;

$newclickamount=$clickuser + $clickadd;

mysql_query("update outwarinfo set clicks=$newclickamount where outwarusername=\"$userid\" ") or die ("Sorry could not update clicks");

?>

Anyhelp? Thanks, Jack

[kevinsequeira]

you are linking to testindex.php?UserId=$outwarname and receiving it in deductpoint.php ???

reg
kevin

[Nixon]

Thats a test page I was doing, the code is:

<?php

$HTTP_GET_VARS['UserId'];
$UserId;

echo($userid);

?>

Just to see if was some of my toehr code it doesn't work on either.

Thanks.

[kevinsequeira]

on testindex.php does this work

<?php
$userid=$_GET['UserId'];
echo $userid;
?>

also can you see the value of UserId in the browser URL link like

[url]http://your_server/testindex.php?UserId=xxx[/url]

reg
kevin

[Nixon]

Yeah I do this is my link at the top:

http://localhost/outwar/testindex.php?UserId=user3&PHPSESSID=8e4e44504b57a617f7541b372ae01f51

Thanks,