Php register form check
weet niet of ik goed zit hier aangezien ik net aangemeld ben.
Maar mijn vraag gaat over een php register form het registreren etc. dat werkt gewoon, maar als iemand nu een veld is vergeten in te vullen dan komt er een fout "please fill in name" alleen daarvoor opent hij de betreffende pagina opnieuw waardoor de andere velden weer leeg zijn. Ik wil graag dat dan het veld een rode border krijgt en een text eronder met wat de fout is, en dat de andere velden ingevult blijven staan. (dat is eigenlijk het belangrijkste dat de velden ingevult blijven na een fout)
Alleen ik krijg dat niet voor elkaar, ik heb wel wat geprobeert dat werkte alleen dat resulteerde weer in een niet verstuurbaar formulier.
Hopelijk snappen jullie wat ik bedoel.
Dit is het script:
Register Form.php
-----------------
Code (php)
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<?php
session_start();
?>
<!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 Form</title>
<link href="loginmodule.css" rel="stylesheet" type="text/css" />
</head>
<body>
<?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']);
}
?>
<form id="loginForm" name="loginForm" method="post" action="register-exec.php">
<table width="300" border="0" align="center" cellpadding="2" cellspacing="0">
<tr>
<th>First Name </th>
<td><input name="fname" type="text" class="textfield" id="fname" /></td>
</tr>
<tr>
<th>Last Name </th>
<td><input name="lname" type="text" class="textfield" id="lname" /></td>
</tr>
<tr>
<th width="124">Login</th>
<td width="168"><input name="login" type="text" class="textfield" id="login" /></td>
</tr>
<tr>
<th>Password</th>
<td><input name="password" type="password" class="textfield" id="password" /></td>
</tr>
<tr>
<th>Confirm Password </th>
<td><input name="cpassword" type="password" class="textfield" id="cpassword" /></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="Submit" value="Register" /></td>
</tr>
</table>
</form>
</body>
</html>
///////////////////////////////////////
Dit is het Register Execution.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
$fname = clean($_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();
header("location: register-form.php");
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($result) {
header("location: register-success.php");
exit();
}else {
die("Query failed");
}
?>
session_start();
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Login Form</title>
<link href="loginmodule.css" rel="stylesheet" type="text/css" />
</head>
<body>
<?php
if( isset($_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']);
}
?>
<form id="loginForm" name="loginForm" method="post" action="register-exec.php">
<table width="300" border="0" align="center" cellpadding="2" cellspacing="0">
<tr>
<th>First Name </th>
<td><input name="fname" type="text" class="textfield" id="fname" /></td>
</tr>
<tr>
<th>Last Name </th>
<td><input name="lname" type="text" class="textfield" id="lname" /></td>
</tr>
<tr>
<th width="124">Login</th>
<td width="168"><input name="login" type="text" class="textfield" id="login" /></td>
</tr>
<tr>
<th>Password</th>
<td><input name="password" type="password" class="textfield" id="password" /></td>
</tr>
<tr>
<th>Confirm Password </th>
<td><input name="cpassword" type="password" class="textfield" id="cpassword" /></td>
</tr>
<tr>
<td> </td>
<td><input type="submit" name="Submit" value="Register" /></td>
</tr>
</table>
</form>
</body>
</html>
///////////////////////////////////////
Dit is het Register Execution.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
$fname = clean($_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();
header("location: register-form.php");
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");
}
?>
Alvast bedankt :)
Gebruik code-tags om je code overzichtelijk weer te geven[/modedit]
Gewijzigd op 22/06/2010 15:21:25 door Joren de Wit
