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After checking the data from the registration form, redirect to another page to enter the system

I am new to php and mysql. I am trying to create a user registration form, check the data, and then redirect to the login page, where they can enter their username and password for login. I wrote the codes, but for some reason I cannot use the header () correctly. Here is my code:

$userErr= $passErr= $passErrc= $firstErr= $lastErr= $middle= $addErr= $cityErr= $stateErr=$zipErr= $emailErr= $phoneErr= $passMatchErr=""; $userID= $password= $pass_conf= $firstName= $lastName= $middle= $address= $city= $state= $zip= $email= $phone=""; // Validate the form // use trim() function to remove unnecessary characters such as extra space, tab, newline, // use stripslashes(() to remove backslashes // use htmlspecialchars() for security function test_input($data) { $data = trim($data); $data = stripslashes($data); $data = htmlspecialchars($data); return $data; } if ($_SERVER["REQUEST_METHOD"] == "POST") { // validating the form to see all required fields are entered if (empty($_POST["userID"])) { $userErr = "User ID is required"; } else { $userID = test_input($_POST["userID"]); } if (empty($_POST["password"])) { $passErr = "Password is required"; } else { $password = test_input($_POST["password"]); } if (empty($_POST["pass_conf"])) { $passErrc = "Confirm your password"; } else { $pass_conf = test_input($_POST["pass_conf"]); } if (empty($_POST["firstName"])) { $firstErr = "First Name is required"; } else { $firstName = test_input($_POST["firstName"]); } if (empty($_POST["lastName"])) { $lastErr = "Last Name is required"; } else { $lastName = test_input($_POST["lastName"]); } if (empty($_POST["middle"])) { $middle = ""; } else { $middle= test_input($_POST["middle"]); } if (empty($_POST["address"])) { $addErr = "Address is required"; } else { $address = test_input($_POST["address"]); } if (empty($_POST["city"])) { $cityErr = "City is required"; } else { $city = test_input($_POST["city"]); } if (empty($_POST["state"])) { $stateErr = "State is required"; } else { $state = test_input($_POST["state"]); } if (empty($_POST["zip"])) { $zipErr = "Zip is required"; } else { $zip = test_input($_POST["zip"]); } if (empty($_POST["email"])) { $emailErr = "Email is required"; } else { $email = test_input($_POST["email"]); } if (empty($_POST["phone"])) { $phoneErr = ""; } else { $phone = test_input($_POST["phone"]); } } else { if($password != $pass_conf){ $passMathErr= "Passwords do not match. Please, go back and re-enter the passwords!"; // die($passMathErr); } else{ // perform sql query to insert the data $sql="insert into users values('$userID', '$password', '$firstName', '$lastName', '$middle', '$address', '$city', '$state', '$zip', '$email', '$phone')"; $result=mysql_query($sql, $connection); header("Location:login.html"); } } ?> <html lang="em"> <head> <title> Registration </title> <style type="text/css"> h1{ text-align: left; font-weight:bold; font-size: 2em; color:#FFFF99; word-spacing: 0.3em; letter-spacing:0.1em; text-decoration:underline; } body{ background-color: #421818; } .txtinput{ margin-left:150px; } table{ font-color:#99FF00; } .error { color: #FF0000; } </style> </head> <body> <h1> Registration Form </h1><br> <form name="reg" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" method="post"> <table style="color:#99FF00" border=0 cellspacing=0 cellpadding=2> <tr> <td>User ID * <td><input type="text" name="userID"/> <span class="error"><?php echo $userErr;?></span> </tr> <tr> <td>Password *<td><input type="password" name="password" /> <span class="error"><?php echo $passErr;?></span> </tr> <tr> <td>Confirm Password *<td><input type="password" name="pass_conf" /> <span class="error"><?php echo $passErrc;?></span> </tr> <tr> <td>First Name *<td><input type="text" name="firstName" /> <span class="error"><?php echo $firstErr;?></span> </tr> <tr> <td>Last Name *<td><input type="text" name="lastName" /> <span class="error"><?php echo $lastErr;?></span> </tr> <tr> <td>Middle<td><input type="text" name="middle" /> <span class="error"><?php echo $middle;?></span> </tr> <tr> <td>Address *<td><input type="text" name="address" /> <span class="error"><?php echo $addErr;?></span> </tr> <tr> <td>City *<td><input type="text" name="city" /> <span class="error"><?php echo $cityErr;?></span> </tr> <tr> <td>State *<td><input type="text" name="state" /> <span class="error"><?php echo $cityErr;?></span> </tr> <tr> <td>Zip *<td><input type="text" name="zip" /> <span class="error"><?php echo $zipErr;?></span> </tr> <tr> <td>Email *<td><input type="text" name="email"/> <span class="error"><?php echo $emailErr;?></span> </tr> <tr> <td>Phone<td><input type="text" name="phone" /> <span class="error"><?php echo $phone;?></span> </tr> </table> <div class="txtinput"> <input type="submit" name="submit" value="Register"/> </div> </form> </body> </html>
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6 answers

You need to exit the code segment as soon as the control is moved to another page. Otherwise, the following code will be executed. Therefore use exit; after the header ().

 header("Location:login.html"); exit;
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I could be wrong, but looking at the structure of your if / else statements, it looks like you only ever sent a header when the request method is NOT POST. (That is, it looks like in another section.) I think it is in the wrong place.

This is what I just think needs to be removed. (Although I'm not sure how your check stops the redirect with your current code)

     {$ phone = test_input ($ _ POST ["phone"]);}
     }   
     else
     {
     if ($ password! = $ pass_conf) {
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try using ob_start (); at the top of the file and ob_end_flush (); at the bottom of the file.

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ok you said that your data goes to db normally, but your header () is not redirected. The only way to do this is to pass in some characters before the header () takes place.

Make sure nothing is printed in front of your heading ().
Make sure there is no specification item at the top of the page.

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just remove the else part of the main if statement and the password confirmation part placed in the main if statement:

 if ($_SERVER["REQUEST_METHOD"] == "POST") { some coce } //"""" else { if($password != $pass_conf){ $passMathErr= "Passwords do not match. Please, go back and re-enter the passwords!"; // die($passMathErr); } else{ $sql="insert into users values('$userID', '$password', '$firstName', '$lastName', '$middle', '$address', '$city', '$state', '$zip', '$email', '$phone')"; $result=mysql_query($sql, $connection); header("Location:login.html"); } } //""" if ($_SERVER["REQUEST_METHOD"] == "POST") { some coce } //"""" else { if($password != $pass_conf){ $passMathErr= "Passwords do not match. Please, go back and re-enter the passwords!"; // die($passMathErr); } else{ // perform sql query to insert the data $sql="insert into users values('$userID', '$password', '$firstName', '$lastName', '$middle', '$address', '$city', '$state', '$zip', '$email', '$phone')"; $result=mysql_query($sql, $connection); header("Location:login.html"); } } //""" // perform sql query to insert the data

delete the above part "" and add it inside the main if statement

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Replace your code with this ....

 if ($_SERVER["REQUEST_METHOD"] == "POST") { // validating the form to see all required fields are entered if (empty($_POST["userID"])) { $userErr = "User ID is required"; } else { $userID = test_input($_POST["userID"]); } if (empty($_POST["password"])) { $passErr = "Password is required"; } else { $password = test_input($_POST["password"]); } if (empty($_POST["pass_conf"])) { $passErrc = "Confirm your password"; } else { $pass_conf = test_input($_POST["pass_conf"]); } if (empty($_POST["firstName"])) { $firstErr = "First Name is required"; } else { $firstName = test_input($_POST["firstName"]); } if (empty($_POST["lastName"])) { $lastErr = "Last Name is required"; } else { $lastName = test_input($_POST["lastName"]); } if (empty($_POST["middle"])) { $middle = ""; } else { $middle= test_input($_POST["middle"]); } if (empty($_POST["address"])) { $addErr = "Address is required"; } else { $address = test_input($_POST["address"]); } if (empty($_POST["city"])) { $cityErr = "City is required"; } else { $city = test_input($_POST["city"]); } if (empty($_POST["state"])) { $stateErr = "State is required"; } else { $state = test_input($_POST["state"]); } if (empty($_POST["zip"])) { $zipErr = "Zip is required"; } else { $zip = test_input($_POST["zip"]); } if (empty($_POST["email"])) { $emailErr = "Email is required"; } else { $email = test_input($_POST["email"]); } if (empty($_POST["phone"])) { $phoneErr = ""; } else { $phone = test_input($_POST["phone"]); } if($password != $pass_conf){ $passMathErr= "Passwords do not match. Please, go back and re-enter the passwords!"; // die($passMathErr); } else{ // perform sql query to insert the data $sql="insert into users values('$userID', '$password', '$firstName', '$lastName', '$middle', '$address', '$city', '$state', '$zip', '$email', '$phone')"; $result=mysql_query($sql, $connection); header("Location: login.html"); } } ?>

Error: you fulfill the redirection condition only if the REQUEST method does not equal the answer to .

Thus, the above code is executed if the POST request method and the entered password match the confirmation password, and then redirect the user to the login page. Now it will work!

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