Problem with error message when login

adhbvklwqdbviabjiawdnbij · August 14, 2011

The error messages "O campo Email nao foi preenchido." and "O campo Senha nao foi preenchido." are not appearing when the fileds are blank.

index.php

<!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=iso-8859-1" />

<title>Login</title>

<link href="loginmodule.css" rel="stylesheet" type="text/css" />

</head>

<body>

<h1>Login</h1>

<form id="loginForm" name="loginForm" method="post" action="actions/login.php">

  <table width="300" border="0" align="left" cellpadding="2" cellspacing="0">

    <tr>

      <td width="112"><b>Email</b></td>

      <td width="188"><input name="email" type="text" class="textfield" id="email" /></td>

    </tr>

    <tr>

      <td><b>Senha</b></td>

      <td><input name="password" type="password" class="textfield" id="password" /></td>

    </tr>

<tr>

<td></td>

<td><p><a href="resend_password.php">Esqueceu sua senha?</a></p></td>

</tr>

    <tr>

      <td> </td>

      <td><input type="submit" name="Submit" value="Login" /></td>

    </tr>

  </table>

</form>

</body>

</html>

actions/login.php

<?php

//Start session

session_start();



//Include database connection details

require_once('../config/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

$email = clean($_POST['email']);

$password = clean($_POST['password']);



//Input Validations

if($email == '') {

	$errmsg_arr[] = 'O campo Email nao foi preenchido.';

	$errflag = true;

}

if($password == '') {

	$errmsg_arr[] = 'O campo Senha nao foi preenchido.';

	$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: ../index.php");

	exit();

}



//Create query

$qry="SELECT * FROM members WHERE email='$email' 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_NAME'] = $member['name'];

		session_write_close();

		header("location: ../home.php");

		exit();

	}else {

		//Login failed

		header("location: ../login_failed.php");

		exit();

	}

}else {

	die("Query failed");

}

?>

jcbones · August 14, 2011

How do you expect PHP held data to appear on a page without any PHP on it?

index.php

<?php
session_start();
if(isset($_SESSION['ERRMSG_ARR'])) {
$errors = implode('<br />',$_SESSION['ERRMSG_ARR']);
}else {
$errors = NULL;
}
?>
<!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=iso-8859-1" />

<title>Login</title>

<link href="loginmodule.css" rel="stylesheet" type="text/css" />

</head>

<body>

<h1>Login</h1>

<form id="loginForm" name="loginForm" method="post" action="actions/login.php">

  <table width="300" border="0" align="left" cellpadding="2" cellspacing="0">

    <tr>

      <td width="112"><b>Email</b></td>

      <td width="188"><input name="email" type="text" class="textfield" id="email" /></td>

    </tr>

    <tr>

      <td><b>Senha</b></td>

      <td><input name="password" type="password" class="textfield" id="password" /></td>

    </tr>

<tr>

<td></td>

<td><p><a href="resend_password.php">Esqueceu sua senha?</a></p></td>

</tr>

    <tr>

      <td> </td>

      <td><input type="submit" name="Submit" value="Login" />
<?php echo $errors; ?></td>

    </tr>

  </table>

</form>

</body>

</html>

adhbvklwqdbviabjiawdnbij · August 14, 2011

Thanks. I used:

<?php

session_start();

?>

and

<?php

if( isset($_SESSION['ERRMSG_ARR']) && is_array($_SESSION['ERRMSG_ARR']) && count($_SESSION['ERRMSG_ARR']) >0 ) {

	echo '<ul class="err">';

	foreach($_SESSION['ERRMSG_ARR'] as $msg) {

		echo '<li>',$msg,'</li>'; 

	}

	echo '</ul>';

	unset($_SESSION['ERRMSG_ARR']);

}

?>

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Problem with error message when login

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