How to use one variable in multiple pages

[Anon]

Hi I have problem with functions. The problem is
that in page index.php I checking user rights from Mysql here all works
but I need to use in page admin.php some user parameters from index.php
example I getting user information from

function user_check($ucname, $ucpass) {

echo "<FORM ACTION='index.php' METHOD='POST'>
<br>
Nimi:
<INPUT TYPE='text' NAME='ucname' VALUE='$ucname'><BR>
parool:
<input type='password' name='ucpass' VALUE='$ucpass'><br> * <br>
<input type='submit' name='ucsubmit' size='20' value='OK'>
";

}
Ok it works fine
and here I getting info from database

$user_rights = "SELECT * FROM oigused WHERE name='$ucname'";
$user_rights_result = mysql_db_query("galvi",$user_rights);
if($user_rights_result) {
while ($user_rights_pages = mysql_fetch_array($user_rights_result)){
$user_page = $user_rights_pages["page"];
$user_leht_komment = $user_rights_pages["komment"];
echo "<a href='$user_leht'>$user_leht_komment</a><br>";
}
}
all this script is situating in index.php and all works
but I have to use $user_page and $user_leht_komment also in
pages admin.php and user.php but HOW???

[Anon]

One way is to pass the variables around using the URL, eg. <a href=\"user.php3?user_page=$user_page&user_leht_komment=$user_leht_komment>User page</a>.

This would cause user.php3 to be run when the user clicks on this link, and the variables $user_page and $user_leht_komment containing the data from index.php3

Another way to do it (if you're using forms from one page to another) is to have <form type=hidden name=user_page value=$user_page> in your form definition.

Yet another way is to use cookies, but they tend to be a bit of an arse because of browser support (in my opinion anyways)

Or, if you do want to use cookies, then use sessions (as of PHP4)... in every page have the code

session_start();

followed by

session_register("user_name");
session_register("user_page");
... etc. for all the variables you want available between pages, and then just use the variables as normal.

hope some of that makes sense

dom
🙂

[Anon]

But do you know how is possible like:
in page
index.php
$value1 = Administrator;

in page admin.php
include ('.../index.php')
echo "$value1";
the echo gives me emty;
but I need that echo "$value1" outputs Administrator;

[Anon]

oh i see.... ok, have you tried referring to them as global variables... so in admin.php3

include...
global $value1;
echo $value1;

not sure if it'll work, as i only tend to include php3 files with functions in them (which return stuff, or set variables that have been passed to it by reference etc)

dom
🙂

[Anon]

Just to give a bit of theory behind dom's point:

functions have their own scope; that is, variables defined outside the function aren't visible from within the function (and vice versa) unless you take steps to make them visible.

Variables defined outside functions are automatically global, so to access them from within a function you need to declare them global. Once you do this, not only can you check the value of the variable, you can change it from within the function (which is not the case if you pass the value to the function; the function will be working on its own private copy).

HTH,

AC

[Anon]

Good tips!
Thanks.