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POSubmitting data using ajax to refresh
 

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    <p>I have successfully used ajax to refresh in-line, via ajax, a contact form. I'm having a bit more difficulty getting it to work with data being sent to mysql. I appreciate that what I have so far is not intended to be refreshed via ajax so it might need some work. Here's what I've got... and any help is appreciated.</p> <p>Form</p> <pre><code>&lt;form name="email_list" action=""&gt; &lt;p&gt;&lt;strong&gt;Your Email Address:&lt;/strong&gt;&lt;br/&gt; &lt;input type="text" name="email" id="email" size="40"&gt; &lt;input type="hidden" name="sub" id="sub" value="sub"&gt; &lt;p&gt;&lt;input type="submit" name="submit" value="Submit Form" class="email_submit"&gt;&lt;/p&gt; &lt;/form&gt; </code></pre> <p>JQuery</p> <pre><code>$(function() { $('.email_submit').submit(function() { var email = $("input#email").val(); if (name == "") { $("input#email").focus(); return false; } var sub = $("input#sub").val(); if (name == "") { $("input#sub").focus(); return false; } var dataString = $(this).serialize(); //alert (dataString);return false; /*$.ajax({ type: "POST", url: "mailing_list_add2.php", data: dataString, success: function() { $('#display_block') .hide() .fadeIn(2500, function() { $('#display_block'); }); } }); return false; });*/ }); </code></pre> <p>PHP</p> <pre><code>&lt;?php // connects the database access information this file include("mailing_list_include.php"); // the following code relates to mailing list signups only if (($_POST) &amp;&amp; ($_POST["action"] == "sub")) { if ($_POST["email"] == "") { header("Location: mailing_list_add.php"); exit; } else { // connect to database doDB(); // filtering out anything that isn't an email address if ( filter_var(($_POST["email"]), FILTER_VALIDATE_EMAIL) == TRUE) { echo ''; } else { echo 'Invalid Email Address'; exit; } // check that the email is in the database emailChecker($_POST["email"]); // get number of results and do action if (mysqli_num_rows($check_res) &lt; 1) { // free result mysqli_free_result($check_res); // cleans all input variables at once $email = mysqli_real_escape_string($mysqli, $_POST['email']); // add record $add_sql = "INSERT INTO subscribers (email) VALUES('$email')"; $add_res = mysqli_query($mysqli, $add_sql) or die(mysqli_error($mysqli)); $display_block = "&lt;p&gt;Thanks for signing up!&lt;/p&gt;"; // close connection to mysql mysqli_close($mysqli); } else { // print failure message $display_block = "You're email address - ".$_POST["email"]." - is already subscribed."; } } } ?&gt; &lt;html&gt; &lt;?php echo "$display_block";?&gt; &lt;/html&gt; </code></pre> <p>**Updated above after making changes :)</p>
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