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    <p>jquery </p> <pre><code>$('form').submit(function(){ // check if passwords match; you might want to do more thorough validation var hasError = false; var emailReg = /^([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?$/; var emailaddressVal = $("#email").val(); if(emailaddressVal == '') { $("#email").after('&lt;span class="error"&gt;Please enter your email address.&lt;/span&gt;'); hasError = true; } else if(!emailReg.test(emailaddressVal)) { $("#email").after('&lt;span class="error"&gt;Enter a valid email address.&lt;/span&gt;'); hasError = true; } else if(hasError == false) { // make ajax post request and store the response in "response" variable $.post('submit.php', $(this).serialize(), function(response){ // process response here (assume JSON object has boolean property "ok" if(response.ok=='0'){ alert('required fields empty'); }else if(response.ok=='1'){ alert('email already exists'); } else if(response.ok=='2') { alert('thankyou for your input'); } }, 'json'); } // stop the form from being submitted return false; }); </code></pre> <p>php code</p> <pre><code> &lt;?php ini_set('display_errors', 1); error_reporting(E_ALL); $con = mysql_connect("localhost","root",""); //Replace with your actual MySQL DB Username and Password if (!$con) { die('Could not connect: ' . mysql_error()); } mysql_select_db("table", $con); //Replace with your MySQL DB Name $first_name=mysql_real_escape_string($_POST['firstname']); $last_name=mysql_real_escape_string($_POST['lastname']); $email=mysql_real_escape_string($_POST['email']); if(empty($first_name) || empty($last_name) || empty($email) ) { echo json_encode( array('ok'=&gt; '0' ) ); exit(); } $sql="Select * from email_list where email='".$email."' "; $sqll=mysql_query($sql) or die($sql."&lt;br/&gt;&lt;br/&gt;".mysql_error()); $data=mysql_fetch_array($sqll); if($data['email']) { echo json_encode( array('ok'=&gt; '1' ) ); exit(); } $sql="INSERT INTO email_list (first_name,last_name,email) VALUES ('$first_name','$last_name','$email')"; mysql_query($sql) or die($sql."&lt;br/&gt;&lt;br/&gt;".mysql_error()); $value = mysql_insert_id() &gt; 0; if($value) echo json_encode( array('ok'=&gt; '2' ) ); mysql_close($con); exit(); ?&gt; </code></pre>
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    1. POPHP AJAX Responses, how can i add different conditions?
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    1. USdanish hashmi
    1. USdanish hashmi
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    1. POPHP AJAX Responses, how can i add different conditions?
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    1. COi get: Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean
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      1. USJames Brandon
    2. COcheck now,if my select query isn't proper it will show you the exact error.
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    3. CONo database selected, silly me!
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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