Attaching & Validating A File. Wordpress

mail-attachment-wordpress

if(!empty($_FILES['resume']['name'])){ // check to see if we have a photo and a user clicks submit
	$accept_file_formats = array(
		'image/jpg',
		'image/jpeg',
		'image/png',
		'image/gif',
		'text/rtf', //.rtf file
		'text/plain', //.txt file
		'application/msword', //.doc file
		'application/vnd.openxmlformats-officedocument.wordprocessingml.document', //.docx file
		'application/pdf' //.pdf file
	);
	if(in_array($_FILES['resume']['type'], $accept_file_formats)){
		$file_name = $_FILES['resume']['name']; //Get the readable file name
		$file_base = dirname($_FILES['resume']['tmp_name']); //Get The Temp Directory defined by PHP
		$file_tmp_name = basename($_FILES['resume']['tmp_name']); //Get PHP's version of the temporary file name
		rename($file_base.'/'.$file_tmp_name, $file_base.'/'.$file_name); //Rename the temporary file to a readable one
		$file_attachment_url = $file_base.'/'.$file_name;
		$attachments = array($file_attachment_url); //store the file in an array we will send with the email later.
	} else {
		$attachemtn_message = 'Please provide either a .doc, .pdf, .rtf, .txt, .png, .gif, or a .jpg version of your resume. Thank You.';
	}
}

wp_mail($email_to, $email_subject, $email_body, $email_header, $attachments);