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Mysql Having errors Help please.


my username

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Im trying to make a login box for my website and i have a problem here it is:

 

I put all my info in the file.

 

<?php 
$host = "localhost";
$user = "scape4le"; <--- thats my username
$pass = "********";<--- my pass covered it out
$db   = "scape4le_members";<------ My DATABASE.

?>

 

Is there any problem with the code?

 

 

When i put it on my website i get this error.

 

Warning: mysql_connect() [function.mysql-connect]: Unknown MySQL server host 'DB_HOST' (1) in /home/scape4le/public_html/Login/login-exec.php on line 15
Failed to connect to server: Unknown MySQL server host 'DB_HOST' (1)

 

Theres more codes for the whole login box but too much.

But thats the file were the problems at.

 

Here is the code that it says it has a error in Login-exec.php

<?php
//Start session
session_start();

//Include database connection details
require_once('config.php');

//Array to store validation errors
$errmsg_arr = array();

//Validation error flag
$errflag = false;

//Connect to mysql server
$link = mysql_connect(DB_HOST, DB_USER, DB_PASSWORD);
if(!$link) {
	die('Failed to connect to server: ' . mysql_error());
}

//Select database
$db = mysql_select_db(DB_DATABASE);
if(!$db) {
	die("Unable to select database");
}

//Function to sanitize values received from the form. Prevents SQL injection
function clean($str) {
	$str = @trim($str);
	if(get_magic_quotes_gpc()) {
		$str = stripslashes($str);
	}
	return mysql_real_escape_string($str);
}

//Sanitize the POST values
$login = clean($_POST['login']);
$password = clean($_POST['password']);

//Input Validations
if($login == '') {
	$errmsg_arr[] = 'Login ID missing';
	$errflag = true;
}
if($password == '') {
	$errmsg_arr[] = 'Password missing';
	$errflag = true;
}

//If there are input validations, redirect back to the login form
if($errflag) {
	$_SESSION['ERRMSG_ARR'] = $errmsg_arr;
	session_write_close();
	header("location: login-form.php");
	exit();
}

//Create query
$qry="SELECT * FROM members WHERE login='$login' AND passwd='".md5($_POST['password'])."'";
$result=mysql_query($qry);

//Check whether the query was successful or not
if($result) {
	if(mysql_num_rows($result) == 1) {
		//Login Successful
		session_regenerate_id();
		$member = mysql_fetch_assoc($result);
		$_SESSION['SESS_MEMBER_ID'] = $member['member_id'];
		$_SESSION['SESS_FIRST_NAME'] = $member['firstname'];
		$_SESSION['SESS_LAST_NAME'] = $member['lastname'];
		session_write_close();
		header("location: member-index.php");
		exit();
	}else {
		//Login failed
		header("location: login-failed.php");
		exit();
	}
}else {
	die("Query failed");
}
?>

 

 

If anyone could help i would appreciate that, Thanks

 

 

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You're using variables to store the hostname, username, password and db name, but in your mysql_connect() and mysql_select_db(), you attempt to use constants which haven't been defined, thus PHP forces them to string values. With that in mind, your code should be more like this:

 

$link = mysql_connect($host, $user, $pass);
if(!$link) {
      die('Failed to connect to server: ' . mysql_error());
}

if( mysql_select_db($db) === FALSE ) {
     die("Unable to select database");
}

 

Moving thread to PHP coding help, since this is ultimately a PHP issue.

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it says query failed

 

You're using variables to store the hostname, username, password and db name, but in your mysql_connect() and mysql_select_db(), you attempt to use constants which haven't been defined, thus PHP forces them to string values. With that in mind, your code should be more like this:

 

$link = mysql_connect($host, $user, $pass);
if(!$link) {
      die('Failed to connect to server: ' . mysql_error());
}

if( mysql_select_db($db) === FALSE ) {
     die("Unable to select database");
}

 

Moving thread to PHP coding help, since this is ultimately a PHP issue.

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Good. That means you've now connected to the database successfully.

 

Change the query execution line to read:

$result = mysql_query($qry) or die( "<br>Query string: $qry<br>Failed with error: " . mysql_error() );

 

Now it says

Query string: SELECT * FROM members WHERE login='df' AND passwd='7885444af42e4b30c518c5be17c8850b'
Failed with error: Table 'scape4le_members.members' doesn't exist

 

Sorry im new at this.

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What the error is saying is that there is no table named `members` in the `scape4le_members` database. Double check to make sure the table actually exists in the database, and the spelling and capitalization of `members` is correct.

i made a table and now it says

Query string: SELECT * FROM members WHERE login='yre' AND passwd='f614be5c658acd76f5c71592b6ec09e6'
Failed with error: Unknown column 'passwd' in 'where clause'

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