Vraag over Simpel login systeem.
Ik heb een simpel login systeem gedownload.
Alleen werkt hij niet helemaal goed.
Code (php)
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<?php
//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
$fname = clean($_POST['fname']);
$lname = clean($_POST['lname']);
$login = clean($_POST['login']);
$password = clean($_POST['password']);
$cpassword = clean($_POST['cpassword']);
//Input Validations
if($fname == '') {
$errmsg_arr[] = 'First name missing';
$errflag = true;
}
if($lname == '') {
$errmsg_arr[] = 'Last name missing';
$errflag = true;
}
if($login == '') {
$errmsg_arr[] = 'Login ID missing';
$errflag = true;
}
if($password == '') {
$errmsg_arr[] = 'Password missing';
$errflag = true;
}
if($cpassword == '') {
$errmsg_arr[] = 'Confirm password missing';
$errflag = true;
}
if( strcmp($password, $cpassword) != 0 ) {
$errmsg_arr[] = 'Passwords do not match';
$errflag = true;
}
//Check for duplicate login ID
if($login != '') {
$qry = "SELECT * FROM members WHERE login='$login'";
$result = mysql_query($qry);
if($result) {
if(mysql_num_rows($result) > 0) {
$errmsg_arr[] = 'Login ID already in use';
$errflag = true;
}
@mysql_free_result($result);
}
else {
die("Query failed");
}
}
//If there are input validations, redirect back to the registration form
if($errflag) {
$_SESSION['ERRMSG_ARR'] = $errmsg_arr;
session_write_close();
("location: index.php?page=register-form");
exit();
}
//Create INSERT query
$qry = "INSERT INTO members(firstname, lastname, login, passwd) VALUES('$fname','$lname','$login','".md5($_POST['password'])."')";
$result = @mysql_query($qry);
//Check whether the query was successful or not
if($result) {
header("location: register-success.php");
exit();
}else {
die("Query failed");
}
?>
//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
$fname = clean($_POST['fname']);
$lname = clean($_POST['lname']);
$login = clean($_POST['login']);
$password = clean($_POST['password']);
$cpassword = clean($_POST['cpassword']);
//Input Validations
if($fname == '') {
$errmsg_arr[] = 'First name missing';
$errflag = true;
}
if($lname == '') {
$errmsg_arr[] = 'Last name missing';
$errflag = true;
}
if($login == '') {
$errmsg_arr[] = 'Login ID missing';
$errflag = true;
}
if($password == '') {
$errmsg_arr[] = 'Password missing';
$errflag = true;
}
if($cpassword == '') {
$errmsg_arr[] = 'Confirm password missing';
$errflag = true;
}
if( strcmp($password, $cpassword) != 0 ) {
$errmsg_arr[] = 'Passwords do not match';
$errflag = true;
}
//Check for duplicate login ID
if($login != '') {
$qry = "SELECT * FROM members WHERE login='$login'";
$result = mysql_query($qry);
if($result) {
if(mysql_num_rows($result) > 0) {
$errmsg_arr[] = 'Login ID already in use';
$errflag = true;
}
@mysql_free_result($result);
}
else {
die("Query failed");
}
}
//If there are input validations, redirect back to the registration form
if($errflag) {
$_SESSION['ERRMSG_ARR'] = $errmsg_arr;
session_write_close();
("location: index.php?page=register-form");
exit();
}
//Create INSERT query
$qry = "INSERT INTO members(firstname, lastname, login, passwd) VALUES('$fname','$lname','$login','".md5($_POST['password'])."')";
$result = @mysql_query($qry);
//Check whether the query was successful or not
if($result) {
header("location: register-success.php");
exit();
}else {
die("Query failed");
}
?>
Hij geeft aan: Headers already sent.
Het zit hem in de location:
Kan ik dat veranderen?
Mvg, Kevin
Je hebt dit tussen je body tags staan gok ik? Zet het eens boven alles inclusief <html>
Dus ik heb 1 index.php en elke pagina include ik met index.php?page=register-form
Hoe doe ik dat dan?
Code (php)
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<?php
/****** INSTELLINGEN ******/
$path = ''; // zet een slash achter de naam van de map
$default_page = 'home'; // zonder extensie
$page = isset( $_GET['page'] ) ? $_GET['page'] : $default_page;
$notallowed = array( '.', '\\', '/' );
if( file_exists( $path . $page . '.php' ) and !in_array( substr( $page, 1, 1 ), $notallowed ) and strpos( $page, '../' ) === false and strpos( $page, '..\\' ) === false )
{
include( $path . $page . '.php' );
}
else
{
include( $path . $default_page . '.php' );
}
?>
/****** INSTELLINGEN ******/
$path = ''; // zet een slash achter de naam van de map
$default_page = 'home'; // zonder extensie
$page = isset( $_GET['page'] ) ? $_GET['page'] : $default_page;
$notallowed = array( '.', '\\', '/' );
if( file_exists( $path . $page . '.php' ) and !in_array( substr( $page, 1, 1 ), $notallowed ) and strpos( $page, '../' ) === false and strpos( $page, '..\\' ) === false )
{
include( $path . $page . '.php' );
}
else
{
include( $path . $default_page . '.php' );
}
?>
Code (php)
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<?php
/****** INSTELLINGEN ******/
$path = ''; // zet een slash achter de naam van de map
$default_page = 'home'; // zonder extensie
$page = isset( $_GET['page'] ) ? $_GET['page'] : $default_page;
$notallowed = array( '.', '\\', '/' );
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
</head>
<body>
<?php
if( file_exists( $path . $page . '.php' ) and !in_array( substr( $page, 1, 1 ), $notallowed ) and strpos( $page, '../' ) === false and strpos( $page, '..\\' ) === false )
{
include( $path . $page . '.php' );
}
else
{
include( $path . $default_page . '.php' );
}
?>
</body>
</html>
/****** INSTELLINGEN ******/
$path = ''; // zet een slash achter de naam van de map
$default_page = 'home'; // zonder extensie
$page = isset( $_GET['page'] ) ? $_GET['page'] : $default_page;
$notallowed = array( '.', '\\', '/' );
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Untitled Document</title>
</head>
<body>
<?php
if( file_exists( $path . $page . '.php' ) and !in_array( substr( $page, 1, 1 ), $notallowed ) and strpos( $page, '../' ) === false and strpos( $page, '..\\' ) === false )
{
include( $path . $page . '.php' );
}
else
{
include( $path . $default_page . '.php' );
}
?>
</body>
</html>