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[SOLVED] how to update registration information


littlepeg

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:) Hi everybody. I am a very very new learner of php and MySQL, Would you please give me some advice on how to do the follows:

  Basically, I developed a registration and log in system, but I would like to have the functionalities that after a user logged in, he/she can send articles or update their registration information if they want to change any personal details.

  Hence, how can I acheive these?

  Any help would be grately and appreciated.

Hi  :) Thank you very much. Here are my codes for registration form and log in. I dont know what to do next at all :'(

 

This is my registration form's code

<?php //registration.php

ob_start();

// Check if the form has been submitted.

:)if (isset($_POST['submitted'])) {

 

require_once ('snypdb.php'); // Connect to the db.

 

$errors = array(); // Initialize error array.

 

// Check for a user name.

if (empty($_POST['user_name'])) {

$errors[] = 'You forgot to enter your user name.';

} else {

$un =$_POST['user_name'];

}

 

// Check for a password and match against the confirmed password.

if (!empty($_POST['password1'])) {

if ($_POST['password1'] != $_POST['password2']) {

$errors[] = 'Your password did not match the confirmed password.';

} else {

$p = $_POST['password1'];

}

} else {

$errors[] = 'You forgot to enter your password.';

}

 

// Check for a first name.

if (empty($_POST['first_name'])) {

$errors[] = 'You forgot to enter your first name.';

} else {

$fn =$_POST['first_name'];

}

 

// Check for a last name.

if (empty($_POST['last_name'])) {

$errors[] = 'You forgot to enter your last name.';

} else {

$ln = $_POST['last_name'];

}

 

// Check for an address.

if (empty($_POST['address'])) {

$errors[] = 'You forgot to enter your address.';

} else {

$ad = $_POST['address'];

}

 

// Check for an postcode

 

if (!empty($_POST['postcode'])) {

if (strncmp(strtolower($_POST['postcode']), "sr5",3)!=0){

$errors[] = 'Sorry, only young people from southwick can register with us';

}

else {

$psd = $_POST['postcode'];

}

    } else {

$errors[] = 'You forgot to enter your postcode.';

}

 

 

 

 

 

// Check for an contact telphone number

if (empty($_POST['tel'])) {

$errors[] = 'You forgot to enter your contact telephone number.';

} else {

$tel = $_POST['tel'];

}

 

 

// Check for an email address.

if (!empty($_POST['email'])) {

if (!eregi("^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+\.[a-z]{2,4}$", stripslashes(trim($_POST['email'])))){

$errors[] = 'Sorry, the email is not valid';

}

else {

$e = $_POST['email'];

}

    } else {

$errors[] = 'You forgot to enter your email.';

}

 

if (empty($_POST['agreetolist'])) {

$errors[] = 'Please choose whether allow other member know you registered with us or not.';

} else {

$agr = $_POST['agreetolist'];

}

 

if (empty($errors)) { // If everything's OK.

 

// Register the user in the database.

 

// Check for previous registration.

$query = "SELECT user_id FROM users WHERE user_name='$un'";

$result = mysql_query($query);

if (mysql_num_rows($result) == 0) {

 

// Make the query.

$query = "INSERT INTO users (user_name, password,first_name, last_name, address, postcode,tel, email, agreetolist, registration_date) VALUES ('$un', md5('$p'),'$fn', '$ln', '$ad', '$psd', '$tel', '$e', '$agr', NOW() )";

$result = @mysql_query ($query); // Run the query.

if ($result) { // If it ran OK.

 

$url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']);

 

// Check for a trailing slash.

if ((substr($url, -1) == '/') OR (substr($url, -1) == '\\') ) {

$url = substr ($url, 0, -1); // Chop off the slash.

}

 

// Add the page.

$url .= '/userpanel.php';

header("Location: $url");

exit();

 

} else { // If it did not run OK.

$errors[] = 'You could not be registered due to a system error. We apologize for any inconvenience.'; // Public message.

$errors[] = mysql_error() . '<br /><br />Query: ' . $query; // Debugging message.

}

 

} else { // Email address is already taken.

$errors[] = 'The user name has already been registered.';

}

 

} // End of if (empty($errors)) IF.

 

mysql_close(); // Close the database connection.

 

} else { // Form has not been submitted.

 

$errors = NULL;

 

} // End of the main Submit conditional.

 

if (!empty($errors)) { // Print any error messages.

echo '<h1 id="mainhead">Error!</h1>

<p class="error">The following error(s) occurred:<br />';

foreach ($errors as $msg) { // Print each error.

echo " - $msg<br />\n";

}

echo '</p><p>Please try again.</p>';

}

// Create the form.

?>

<h2>Register</h2>

<form action="registration.php" method="post">

    <p>User Name: <input type="text" name="user_name" size="20" maxlength="30" value="<?php if (isset($_POST['user_name'])) echo $_POST['user_name']; ?>" /></p>

    <p>Password: <input type="password" name="password1" size="10" maxlength="20" /></p>

<p>Confirm Password: <input type="password" name="password2" size="10" maxlength="20" /></p>

<p>First Name: <input type="text" name="first_name" size="15" maxlength="15" value="<?php if (isset($_POST['first_name'])) echo $_POST['first_name']; ?>" /></p>

<p>Last Name: <input type="text" name="last_name" size="15" maxlength="30" value="<?php if (isset($_POST['last_name'])) echo $_POST['last_name']; ?>" /></p>

<p>Address: <input type="text" name="address" size="40" maxlength="60" value="<?php if (isset($_POST['address'])) echo $_POST['address']; ?>" /></p>

<p>Postcode: <input type="text" name="postcode" size="10" maxlength="12" value="<?php if (isset($_POST['postcode'])) echo $_POST['postcode']; ?>" /></p>

<p>Telephone Number: <input type="text" name="tel" size="10" maxlength="15" value="<?php if (isset($_POST['tel'])) echo $_POST['tel']; ?>" /></p>

<p>Email Address: <input type="text" name="email" size="20" maxlength="40" value="<?php if (isset($_POST['email'])) echo $_POST['email']; ?>"  /> </p>

 

<p>Would you like to be on the registered members list so that other members can see that you have registered with us? </p>

<p> <lable>Yes: <input type="radio" name="agreetolist" value="y" <?php if($agr=='y') echo ('checked'); ?>> </lable>

<lable>No: <input type="radio" name="agreetolist" value="n" <?php if($agr=='n') echo ('checked'); ?>></lable></p>

 

<p><input type="submit" name="submit" value="Register" /></p>

<input type="hidden" name="submitted" value="TRUE" />

</form>

 

 

 

 

:) This is my log in page

<?php //login4.php

 

ob_start();

 

// Check if the form has been submitted.

if (isset($_POST['submitted'])) {

 

  require_once ('snypdb.php'); // Connect to the db.

     

  $errors = array(); // Initialize error array.

 

  // Check for an  user name.

  if (empty($_POST['user_name'])) {

      $errors[] = 'You forgot to enter your user name.';

  } else {

      $un = $_POST['user_name'];

  }

 

  // Check for a password.

  if (empty($_POST['password'])) {

      $errors[] = 'You forgot to enter your password.';

  } else {

      $p = md5($_POST['password']);

  }

 

  if (empty($errors)) { // If everything's OK.

 

      /* Retrieve the user_id and first_name for

      that user name/password combination. */

      $query = "SELECT user_id, first_name FROM users WHERE user_name='$un' AND password='$p'";     

      $result = mysql_query($query) or die(mysql_error());

      // Run the query.

      $num = mysql_num_rows($result); // Return a record, if applicable.

 

      if ($num == 1) { // A record was pulled from the database.

 

        $row = mysql_fetch_array($result, MYSQL_NUM);

 

        // Set the session data & redirect.

        session_name('YourVisitID');

        session_start();

        $_SESSION['user_id'] = $row[0];

        $_SESSION['first_name'] = $row[1];

        $_SESSION['agent']=md5($_SERVER['HTTP_USER_AGENT']);

 

        // Redirect the user to the loggedin.php page.

        // Start defining the URL.

        $url = 'http://' . $_SERVER['HTTP_HOST'] . dirname($_SERVER['PHP_SELF']);

        // Check for a trailing slash.

        if ((substr($url, -1) == '/') OR (substr($url, -1) == '\\') ) {

            $url = substr ($url, 0, -1); // Chop off the slash.

        }

        // Add the page.

        $url .= '/loggedin.php';

       

        header("Location: $url");

        exit(); // Quit the script.

           

      } else { // No record matched the query.

        $errors[] = 'The user name and password entered do not match those on file.'; // Public message.

        $errors[] = mysql_error() . '

 

Query: ' . $query; // Debugging message.

      }

     

  } // End of if (empty($errors)) IF.

     

  mysql_close(); // Close the database connection.

 

} else { // Form has not been submitted.

 

  $errors = NULL;

 

} // End of the main Submit conditional.

 

 

 

if (!empty($errors)) { // Print any error messages.

  echo '<h1 id="mainhead">Error!</h1>

  <p class="error">The following error(s) occurred:

';

  foreach ($errors as $msg) { // Print each error.

      echo " - $msg

\n";

  }

  echo '</p><p>Please try again.</p>';

}

 

// Create the form.

?>

<h2>Login</h2>

<form action="login.php" method="post">

  <p>User Name: <input type="text" name="user_name" size="20" maxlength="40" /> </p>

  <p>Password: <input type="password" name="password" size="20" maxlength="20" /></p>

  <p><input type="submit" name="submit" value="Login" /></p>

  <input type="hidden" name="submitted" value="TRUE" />

</form>

 

 

this should work

 

SELECT $query = "SELECT * FROM users WHERE user_id='{$_SESSION['user_id']}'";

 

of course your need the fetch ect

see your

 

    /* Retrieve the user_id and first_name for

      that user name/password combination. */

 

section

Now, i assume thats a form,

 

when you submit that data, (submit to the same page) update that users recoard

 

<?php
if(isset($_POST['submit']))
{
//update record
$SQL = "update users SET realname = '{$_POST['user_name']}' WHERE user_id='{$_SESSION['user_id']}' ";
}
// display form 
?>

 

NOTE: this isn't perfect but a start

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