<?php
$to = $_POST['email'];
 
$from = 'atencionclientes@dominio.com';
$fromName = 'TESTING';
 
$subject = 'ASUNTO'; 
 
$file = "pdfs_tick/".$_POST['token'].".pdf";
 
$htmlContent = '<h1>Hola '.$_POST['nombre'].'! tu Folio/Referencia es: <strong>'.$_POST['token'].'</strong></h1>';
 
$headers = "De: $fromName"." <".$from.">";
 
$semi_rand = md5(time()); 
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x"; 
 
$headers .= "\nMIME-Version: 1.0\n" . "Content-Type: multipart/mixed;\n" . " boundary=\"{$mime_boundary}\""; 
 
$message = "--{$mime_boundary}\n" . "Content-Type: text/html; charset=\"UTF-8\"\n" .
"Content-Transfer-Encoding: 7bit\n\n" . $htmlContent . "\n\n"; 
 
//preparación de archivo
if(!empty($file) > 0){
    if(is_file($file)){
        $message .= "--{$mime_boundary}\n";
        $fp =    @fopen($file,"rb");
        $data =  @fread($fp,filesize($file));
 
        @fclose($fp);
        $data = chunk_split(base64_encode($data));
        $message .= "Content-Type: application/octet-stream; name=\"".basename($file)."\"\n" . 
        "Content-Description: ".basename($files[$i])."\n" .
        "Content-Disposition: attachment;\n" . " filename=\"".basename($file)."\"; size=".filesize($file).";\n" . 
        "Content-Transfer-Encoding: base64\n\n" . $data . "\n\n";
    }
}
$message .= "--{$mime_boundary}--";
$returnpath = "-f" . $from;
 
$mail = @mail($to, $subject, $message, $headers, $returnpath); 
 
echo $mail?"<h1>Correo enviado.</h1>":"<h1>El envío de correo falló.</h1>";