I have form validation and insert query through ajax. It is running correctly. But If email exists then it should go on another page.
My index.php is:
<div id="wrap"> <!--wrap start-->
<br />
<h1>Check the Email if Already Exist</h1>
<form action="" method="post" id="mainform">
<table id="table_data">
<tr>
<td>First Name</td>
<td><input name="fname" type="text" size="30"></td>
<td><span class="fname_val validation"></span></td>
</tr>
<tr>
<td>Last Name</td>
<td><input name="lname" type="text" size="30"></td>
<td><span class="lname_val validation"></span></td>
</tr>
<tr>
<td>Email</td>
<td><input name="email" type="text" size="30"></td>
<td><span class="email_val validation"></span></td>
</tr>
<tr>
<td> </td>
<td><input name="register" type="button" value="Register"> <span class="loading"></span></td>
<td></td>
</tr>
</table>
</form>
</div> <!--wrap end-->
script is:
<script>
jQuery(function($) {
var val_holder;
$("form input[name='register']").click(function() { // triggred click
/************** form validation **************/
val_holder = 0;
var fname = jQuery.trim($("form input[name='fname']").val()); // first name field
var lname = jQuery.trim($("form input[name='lname']").val()); // last name field
var email = jQuery.trim($("form input[name='email']").val()); // email field
var email_regex = /^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$/; // reg ex email check
if(val_holder == 1) {
return false;
}
val_holder = 0;
/************** form validation end **************/
/************** start: email exist function and etc. **************/
$("span.loading").html("<img src='images/ajax_fb_loader.gif'>");
$("span.validation").html("");
var datastring = 'fname='+ fname +'&lname='+ lname +'&email='+ email; // get data in the form manual
//var datastring = $('form#mainform').serialize(); // or use serialize
$.ajax({
type: "POST", // type
url: "check_email.php", // request file the 'check_email.php'
data: datastring, // post the data
success: function(responseText) { // get the response
if(responseText == 1) { // if the response is 1
$("span.email_val").html("<img src='images/invalid.png'> Email are already exist.");
$("span.loading").html("");
} else { // else blank response
if(responseText == "") {
$("span.loading").html("<img src='images/correct.png'> You are registred.");
$("span.validation").html("");
$("form input[type='text']").val(''); // optional: empty the field after registration
}
}
} // end success
}); // ajax end
/************** end: email exist function and etc. **************/
}); // click end
}); // jquery end
</script>
check_email.php
<?php
require_once("database.php"); // require the db connection
/* catch the post data from ajax */
$fname = $_POST['fname'];
$lname = $_POST['lname'];
$email = $_POST['email'];
$query = mysql_query("SELECT `email` FROM `users` WHERE `email` = '$email'");
if(mysql_num_rows($query) == 1) { // if return 1, email exist.
echo '1';
}
else { // else not, insert to the table
$query = mysql_query("INSERT INTO `users` (`first_name` ,`last_name` ,`email`) VALUES ('$fname', '$lname', '$email')");
echo "<script type='text/javascript'>window.location='payment.php' </script>";
}
?>
At the check_email.php, if email not exist then page should go on payment.php. But it is still on same page and payment.php, there is some more query.
