adriscoll Posted March 13, 2011 Share Posted March 13, 2011 Hello all. I have seen a few threads that loosely deal with ways to do this, but haven't seen anything yet that speaks to this scenario. I have a page (volunteer_signup.php) that shows events to participate in and it passes some variables to a second page (volunteer.php)which is a form for individuals to enter their credentials and that appends to the event detail passed from the first page. I want to be able to check that their email isn't already associated with this particular event, but it is allowed to be in the database for another event. I wanted to do something like the code below, but don't know how to incorporate that with the form (or in volunteerDB.php) any help would be great. thank you in advance. $sql_email_check = mysql_query("SELECT email FROM users WHERE email='$email'"); $email_check = mysql_num_rows($sql_email_check); if($email_check > 0) { echo "Email is already in our database. Please enter a different email !! <br />"; } exit(); } current form: <html> <?php include('dbconfig.php'); $event_id = $_GET['id']; $park = $_GET['park']; $orderdate = $_GET['orderdate']; $description = $_GET['description']; $leader = $_GET['leader']; $hour = $_GET['hour']; $min = $_GET['min']; $ampm = $_GET['ampm']; echo $orderdate; echo "<BR>"; echo $park; echo "<BR>"; echo $description; echo "<BR>"; echo $hour; echo ":"; echo $min; echo $ampm; ?> <body> <form enctype="multipart/form-data" action="volunteerDB.php" method="POST" name="myform"> <table border="1"> <input type="hidden" name="event_id" value=<?php echo $event_id; ?>> <input type="hidden" name="park" value=<?php echo $park; ?>> <input type="hidden" name="orderdate" value=<?php echo $orderdate; ?>> <input type="hidden" name="description" value=<?php echo $description; ?>> <input type="hidden" name="leader" value=<?php echo $leader; ?>> <input type="hidden" name="hour" value=<?php echo $hour; ?>> <input type="hidden" name="min" value=<?php echo $min; ?>> <input type="hidden" name="ampm" value=<?php echo $ampm; ?>> <tr> <td>First Name</td> <td> <input name="firstname" /> </td> </tr> <tr> <td>Last Name</td> <td> <input name="lastname" /> </td> </tr> <tr> <td>Email</td> <td> <input name="email" /> </td> </tr> <tr> <td>Phone</td> <td> <input name="phone" /> </td> </tr> <tr> </tr> </table> <input type="submit" value="Submit" onclick="verify();"> </td> </tr> </form> </body> </html> form feeds to this php page (volunteerDB.php): <?php include('dbconfig.php'); $event_id = $_POST['event_id']; $park = $_POST['park']; $orderdate = $_POST['orderdate']; $description = $_POST['description']; $leader = $_POST['leader']; $hour = $_POST['hour']; $min = $_POST['min']; $ampm = $_POST['ampm']; $firstname = $_POST['firstname']; $lastname = $_POST['lastname']; $email = $_POST['email']; $phone = $_POST['phone']; $email_list = $_POST['email_list']; // Make a MySQL Connection mysql_connect("localhost", "$user", "$password") or die(mysql_error()); mysql_select_db("$database") or die(mysql_error()); mysql_query("INSERT INTO volunteer (id, event_id, park, firstname, lastname, email, phone, email_list) VALUES('', '$event_id', '$park', '$firstname', '$lastname', '$email', '$phone', '$email_list') ") or die(mysql_error()); ?> <?php $to = "$email"; $subject = "Trailworker Event Signup Confirmation"; $message = "Hello $firstname! Thank you for signing up to work the $park trailworker event. A crew leader will contact you shortly. Park: $park Date: $orderdate Time: $hour:$min $ampm Description: $description Crew Leader: $leader"; $from = "[email protected]"; $headers = "From: $from"; mail($to,$subject,$message,$headers); echo "Thank you for signing up. You will receive an email shortly letting you know event details and who your crew leader is."; ?> Link to comment https://forums.phpfreaks.com/topic/230520-on-form-submit-check-email-for-duplicates/ Share on other sites More sharing options...
cunoodle2 Posted March 13, 2011 Share Posted March 13, 2011 If you need to check for a particular event then you will need to add a WHERE clause to your query. I'm not sure of your table column names so I'm totally guessing here but it will likely be like... $sql_email_check = mysql_query("SELECT email FROM users WHERE email='$email' AND event_type='$event_name'"); Link to comment https://forums.phpfreaks.com/topic/230520-on-form-submit-check-email-for-duplicates/#findComment-1187040 Share on other sites More sharing options...
adriscoll Posted April 7, 2011 Author Share Posted April 7, 2011 cunoodle, thank you for the guidance. The idea makes sense, but where do i put it in...at the INSERT command? Link to comment https://forums.phpfreaks.com/topic/230520-on-form-submit-check-email-for-duplicates/#findComment-1198465 Share on other sites More sharing options...
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