Programming Forums > Web Development and Design > PHP

foxcity911 · Jun 30th, 2005, 9:25 PM

ive set the session up correctly im pretty sure, but when it goes from user_authenticate.php to members.php the members.php screen says that the username and password variables are undefined. why hasnt the session variables registered properly?
user_authenticate.php

(Toggle Plain Text)

<?

$user = $_POST['user']; 
$pass = $_POST['password']; 

//set the database connection variables 

$dbHost = "localhost"; 
$dbUser = "root";  
$dbDatabase = "contact"; 

//connet to the database 

$db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); 

mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); 

$result=mysql_query("SELECT * FROM logins WHERE user='$user' AND pass='$pass'", $db); 

//check that at least one row was returned 

$rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>"); 
if($rowCheck >= 1){ 
while($row = mysql_fetch_array($result)){ 

  //start the session and register a variable 

  session_start(); 
  session_register("$user"); 
 session_register("$pass");

$HTTP_SESSION_VARS ["$user"] = $username;
$HTTP_SESSION_VARS ["$password"] = $password;
  

  //successful login code will go here... 
header ("Location: members.php");
 
  } 

  } 
  else { 

  //if nothing is returned by the query, unsuccessful login code goes here... 

  echo 'Incorrect login name or password. Please try again.'; 
  } 
 ?>

members.php

(Toggle Plain Text)

<?php

$dbHost = "localhost"; 
$dbUser = "root";  
$dbDatabase = "contact"; 


//connect to the database 

$db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); 

mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); 

$result=mysql_query("SELECT * FROM logins WHERE user='$username' AND pass='$password'", $db); 

//check that at least one row was returned 

$rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>"); 
if($rowCheck <= 1){ 
while($row = mysql_fetch_array($result))

header ("Location: login.php");

}
 else {


echo ("Welcome Members");

echo "<P><A href='addform.php'>Add a contact</a>";

echo $user;
}

?>

BlazingWolf · Jun 30th, 2005, 11:41 PM

You need to use session_start() on every page that you want to access the session's varibles.

Also when your setting your sessions varibles the proper way to do it is

$_SESSION['myvarible'] = 'myvalue'

session_register() is not supposed to be used any more, and $HTTP_SESSION_VARS is just a longer version of $_SESSION.

foxcity911 · Jun 30th, 2005, 11:57 PM

the reason i used the session_vars and session_register because $_SESSION comes up as an undefined variable even though its supposed to be a universal variable.

foxcity911 · Jul 1st, 2005, 3:08 AM

okay im using $_SESSION instead now but the variables are still not registering on members.php. im using the the session register on the page aswell. the error is still the same, and i have enabled cookies completely. why is it still wrong?

magic_e · Jul 1st, 2005, 4:45 AM

maybe i've missed somthing but were in your code you check to see if the session is set?

maybe i'm wrong but why dont you try this instead

members.php
[PHP]<?php
sesion_start();
$dbHost = "localhost";
$dbUser = "root";
$dbDatabase = "contact";

//connect to the database

$db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked");

mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database.");

//check that at least one row was returned

if (!isset($_SESSION['user'])){

header ("Location: login.php");

}else {

echo ("Welcome Members");

echo "<P><A href='addform.php'>Add a contact</a>";

echo $_SESSION['user'];
}

?>[/PHP]

user_authenticate.php
[PHP]<?
session_start();
$user = $_POST['user'];
$pass = $_POST['password'];

//set the database connection variables

$dbHost = "localhost";
$dbUser = "root";
$dbDatabase = "contact";

//connet to the database

$db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked");

mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database.");

$result=mysql_query("SELECT * FROM logins WHERE user='$user' AND pass='$pass'", $db);

//check that at least one row was returned

$rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>");
if($rowCheck >= 1){
while($row = mysql_fetch_array($result)){

//start the session and register a variable

$_SESSION["user"] = $user;
$_SESSION["password"] = $pass;

//successful login code will go here...
header ("Location: members.php");

}

}
else {

//if nothing is returned by the query, unsuccessful login code goes here...

echo 'Incorrect login name or password. Please try again.';
}
?>[/PHP]

hope it helps

foxcity911 · Jul 1st, 2005, 5:02 AM

Magic E you're a champion, it works pretty much exactly as i wanted and with a whole lot less code! Thanks alot.

magic_e · Jul 1st, 2005, 5:05 AM

npz happy to help

foxcity911 · Jul 1st, 2005, 6:12 AM

another problem, good lord i feel like a moron, lol.
this page prints the contacts that have been inputted into the database depending on user.

(Toggle Plain Text)

<?php
session_start();

if (!isset($_SESSION['user'])){

header ("Location: userlogin.php");

}else {

$user=$_SESSION['user'];

$dbHost = "localhost"; 
$dbUser = "root";  
$dbDatabase = "contact"; 

//connet to the database 

$db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); 

mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database.");

$result = mysql_query("SELECT * FROM contactinfo WHERE username='$user'", $db) or die ("getting info from contactinfo sucks"); 

mysql_close();

echo $result;

}

?>

it comes up resource ID#3 instead of the table info, why is this?

magic_e · Jul 1st, 2005, 9:10 AM

you need to put it into a loop

[PHP]

<?php
session_start();

if (!isset($_SESSION['user'])){

header ("Location: userlogin.php");

}else {

$user= $_SESSION['user'];

$dbHost = "localhost";
$dbUser = "root";
$dbDatabase = "contact";

//connet to the database

$db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked");

mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database.");

$res = mysql_query("SELECT * FROM contactinfo WHERE username='$user'", $db) or die ("getting info from contactinfo sucks");

//You see how it will get every single row with given from that query and then get each row
while (@$row = mysql_fetch_array($res, MYSQL_ASSOC)) {

$name = $row['name'];
}

echo $name;

mysql_close();

}

?>
[/PHP]

something like that, you will ned to change name to the title of a row in your database

then you will be able to build your page that way

hope it helps

Jun 30th, 2005, 9:25 PM	#1
foxcity911 Programmer Join Date: Jun 2005 Location: Queensland Posts: 37 Rep Power: 0	session variable problem ive set the session up correctly im pretty sure, but when it goes from user_authenticate.php to members.php the members.php screen says that the username and password variables are undefined. why hasnt the session variables registered properly? user_authenticate.php (Toggle Plain Text) <? $user = $_POST['user']; $pass = $_POST['password']; //set the database connection variables $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connet to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $result=mysql_query("SELECT * FROM logins WHERE user='$user' AND pass='$pass'", $db); //check that at least one row was returned $rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>"); if($rowCheck >= 1){ while($row = mysql_fetch_array($result)){ //start the session and register a variable session_start(); session_register("$user"); session_register("$pass"); $HTTP_SESSION_VARS ["$user"] = $username; $HTTP_SESSION_VARS ["$password"] = $password; //successful login code will go here... header ("Location: members.php"); } } else { //if nothing is returned by the query, unsuccessful login code goes here... echo 'Incorrect login name or password. Please try again.'; } ?> <? $user = $_POST['user']; $pass = $_POST['password']; //set the database connection variables $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connet to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $result=mysql_query("SELECT * FROM logins WHERE user='$user' AND pass='$pass'", $db); //check that at least one row was returned $rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>"); if($rowCheck >= 1){ while($row = mysql_fetch_array($result)){ //start the session and register a variable session_start(); session_register("$user"); session_register("$pass"); $HTTP_SESSION_VARS ["$user"] = $username; $HTTP_SESSION_VARS ["$password"] = $password; //successful login code will go here... header ("Location: members.php"); } } else { //if nothing is returned by the query, unsuccessful login code goes here... echo 'Incorrect login name or password. Please try again.'; } ?> members.php (Toggle Plain Text) <?php $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connect to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $result=mysql_query("SELECT * FROM logins WHERE user='$username' AND pass='$password'", $db); //check that at least one row was returned $rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>"); if($rowCheck <= 1){ while($row = mysql_fetch_array($result)) header ("Location: login.php"); } else { echo ("Welcome Members"); echo "<P><A href='addform.php'>Add a contact</a>"; echo $user; } ?> <?php $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connect to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $result=mysql_query("SELECT * FROM logins WHERE user='$username' AND pass='$password'", $db); //check that at least one row was returned $rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>"); if($rowCheck <= 1){ while($row = mysql_fetch_array($result)) header ("Location: login.php"); } else { echo ("Welcome Members"); echo "<P><A href='addform.php'>Add a contact</a>"; echo $user; } ?>

Jun 30th, 2005, 11:41 PM	#2
BlazingWolf Hobbyist Programmer Join Date: Sep 2004 Posts: 207 Rep Power: 5	You need to use session_start() on every page that you want to access the session's varibles. Also when your setting your sessions varibles the proper way to do it is $_SESSION['myvarible'] = 'myvalue' session_register() is not supposed to be used any more, and $HTTP_SESSION_VARS is just a longer version of $_SESSION. __________________ _______________________________ BlazingWolf

Jul 1st, 2005, 6:12 AM	#8
foxcity911 Programmer Join Date: Jun 2005 Location: Queensland Posts: 37 Rep Power: 0	another problem, good lord i feel like a moron, lol. this page prints the contacts that have been inputted into the database depending on user. (Toggle Plain Text) <?php session_start(); if (!isset($_SESSION['user'])){ header ("Location: userlogin.php"); }else { $user=$_SESSION['user']; $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connet to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $result = mysql_query("SELECT * FROM contactinfo WHERE username='$user'", $db) or die ("getting info from contactinfo sucks"); mysql_close(); echo $result; } ?> <?php session_start(); if (!isset($_SESSION['user'])){ header ("Location: userlogin.php"); }else { $user=$_SESSION['user']; $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connet to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $result = mysql_query("SELECT * FROM contactinfo WHERE username='$user'", $db) or die ("getting info from contactinfo sucks"); mysql_close(); echo $result; } ?> it comes up resource ID#3 instead of the table info, why is this?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Jun 30th, 2005, 11:57 PM	#3
foxcity911 Programmer Join Date: Jun 2005 Location: Queensland Posts: 37 Rep Power: 0	the reason i used the session_vars and session_register because $_SESSION comes up as an undefined variable even though its supposed to be a universal variable.

Jul 1st, 2005, 3:08 AM	#4
foxcity911 Programmer Join Date: Jun 2005 Location: Queensland Posts: 37 Rep Power: 0	okay im using $_SESSION instead now but the variables are still not registering on members.php. im using the the session register on the page aswell. the error is still the same, and i have enabled cookies completely. why is it still wrong?

Jul 1st, 2005, 4:45 AM	#5
magic_e Programmer Join Date: Jan 2005 Posts: 44 Rep Power: 0	maybe i've missed somthing but were in your code you check to see if the session is set? maybe i'm wrong but why dont you try this instead members.php [PHP]<?php sesion_start(); $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connect to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); //check that at least one row was returned if (!isset($_SESSION['user'])){ header ("Location: login.php"); }else { echo ("Welcome Members"); echo "<P><A href='addform.php'>Add a contact</a>"; echo $_SESSION['user']; } ?>[/PHP] user_authenticate.php [PHP]<? session_start(); $user = $_POST['user']; $pass = $_POST['password']; //set the database connection variables $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connet to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $result=mysql_query("SELECT * FROM logins WHERE user='$user' AND pass='$pass'", $db); //check that at least one row was returned $rowCheck = mysql_num_rows($result) or die ("Incorrect username or password!<P><A href='userlogin.php'>Return to Login</a>"); if($rowCheck >= 1){ while($row = mysql_fetch_array($result)){ //start the session and register a variable $_SESSION["user"] = $user; $_SESSION["password"] = $pass; //successful login code will go here... header ("Location: members.php"); } } else { //if nothing is returned by the query, unsuccessful login code goes here... echo 'Incorrect login name or password. Please try again.'; } ?>[/PHP] hope it helps

Jul 1st, 2005, 5:02 AM	#6
foxcity911 Programmer Join Date: Jun 2005 Location: Queensland Posts: 37 Rep Power: 0	Magic E you're a champion, it works pretty much exactly as i wanted and with a whole lot less code! Thanks alot.

Jul 1st, 2005, 5:05 AM	#7
magic_e Programmer Join Date: Jan 2005 Posts: 44 Rep Power: 0	npz happy to help

Jul 1st, 2005, 9:10 AM	#9
magic_e Programmer Join Date: Jan 2005 Posts: 44 Rep Power: 0	you need to put it into a loop [PHP] <?php session_start(); if (!isset($_SESSION['user'])){ header ("Location: userlogin.php"); }else { $user= $_SESSION['user']; $dbHost = "localhost"; $dbUser = "root"; $dbDatabase = "contact"; //connet to the database $db = mysql_connect("$dbHost", "$dbUser") or die ("DB is fucked"); mysql_select_db("$dbDatabase", $db) or die ("Couldn't select the database."); $res = mysql_query("SELECT * FROM contactinfo WHERE username='$user'", $db) or die ("getting info from contactinfo sucks"); //You see how it will get every single row with given from that query and then get each row while (@$row = mysql_fetch_array($res, MYSQL_ASSOC)) { $name = $row['name']; } echo $name; mysql_close(); } ?> [/PHP] something like that, you will ned to change name to the title of a row in your database then you will be able to build your page that way hope it helps

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Programming Forums > Web Development and Design > PHP

session variable problem