Tady jsem našel

<?php

 
// Recipient 
$to = 'xxxxx@seznam.cz'; 
 
// Sender 
$from = 'xxxxx@seznam.cz'; 
$fromName = 'CodexWorld'; 
 
// Email subject 
$subject = 'PHP Email with Attachment by CodexWorld';  
 
// Attachment file 
$file = "/xxxxx/xxxx_1.jpg"; 
 
// Email body content 
$htmlContent = ' 
    <h3>PHP Email with Attachment by CodexWorld</h3> 
    <p>This email is sent from the PHP script with attachment.</p> 
'; 
 
// Header for sender info 
$headers = "From: $fromName"." <".$from.">"; 
 
// Boundary  
$semi_rand = md5(time());  
$mime_boundary = "==Multipart_Boundary_x{$semi_rand}x";  
 
// Headers for attachment  
$headers .= "\nMIME-Version: 1.0\n" . "Content-Type: multipart/mixed;\n" . " boundary=\"{$mime_boundary}\""; 
 
// Multipart boundary  
$message = "--{$mime_boundary}\n" . "Content-Type: text/html; charset=\"UTF-8\"\n" . 
"Content-Transfer-Encoding: 7bit\n\n" . $htmlContent . "\n\n";  
 
// Preparing attachment 
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($file)."\n" . 
        "Content-Disposition: attachment;\n" . " filename=\"".basename($file)."\"; size=".filesize($file).";\n" .  
        "Content-Transfer-Encoding: base64\n\n" . $data . "\n\n"; 
    } 
} 
$message .= "--{$mime_boundary}--"; 
$returnpath = "-f" . $from; 
 
// Send email 
$mail = @mail($to, $subject, $message, $headers, $returnpath);  
 
// Email sending status 
echo $mail?"<h1>Email Sent Successfully!</h1>":"<h1>Email sending failed.</h1>"; 
 
?>

napíše mi to Email Sent Successfully!
do emailu to přijde toto

PHP Email with Attachment by CodexWorld
This email is sent from the PHP script with attachment.
ale soubor ne proč? jsem uvažoval že cesta k tomu souboru je špatná ale kdyby byla špatná tak při provádění skriptu se vypíše chyba díky