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copied!<p>Perhaps it's because you don't change the http header code of your response and don't specify your data type response.</p> <p>You're php code response to front (jQuery) code with a "200 – OK" status in any case, but you expect an error in some case with an 'HTTP/1.0 400 – Bad Request' response Or a 'HTTP/1.0 500 Internal Server Error'.</p> <p>And, like say Eggplant, you have to specify your response data type as 'Content-Type: application/json'.</p> <p>So, the final code would be something like this :</p> <pre><code><?php ... header('HTTP/1.0 204 – No Content', true, 204); header('Content-Type: application/json'); if ( empty($myname) || empty($myemail) || empty($mymessage) ) { header('HTTP/1.0 400 – Bad Request', true, 400); exit('{"error":"That value was invalid!"}') } else { ... $send = mail( $toemail, $subject, $body, "From: $email" ); if (!$send) header('HTTP/1.0 500 – Internal Server Error', true, 500); exit ('{"error":"Mail could not be sent."}'); } } return; ?> </code></pre> <p>For the Warning <code>Cannot modify header information - headers already sent by (output started at /homepages/.../design/contact.php:1)</code> you can examine <a href="https://stackoverflow.com/questions/8028957/headers-already-sent-by-php">this answer</a> on the same problem.</p> <p>Output can be:</p> <ul> <li>Unintentional: <ul> <li>Whitespace before </li> <li>UTF-8 Byte Order Mark</li> <li>Previous error messages or notices</li> </ul></li> <li>Intentional: <ul> <li>print, echo and other functions producing output (like var_dump)</li> <li>Raw areas before </ul></li> </ul> <p><strong>Update after chat session : it's was a UTF-8 BOM problem</strong></p>

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