Send mail with attachment

Question

I want to send an email by clicking on a link or hyperlink with an attachment. The file will find itself in the directory where the page is. I’m using this code Email with attachments in php

Gives an error saying you don’t know Function mime_content_type(). I want to use without forms.

$boundary = "XYZ-".md5(date("dmYis"))."-ZYX";

$path = '/teste.txt';
$fileType = mime_content_type( $path );
$fileName = basename( $path );

// Pegando o conteúdo do arquivo
$fp = fopen( $path, "rb" ); // abre o arquivo enviado
$anexo = fread( $fp, filesize( $path ) ); // calcula o tamanho
$anexo = chunk_split(base64_encode( $anexo )); // codifica o anexo em base 64
fclose( $fp ); // fecha o arquivo

// cabeçalho do email
$headers = "MIME-Version: 1.0" . PHP_EOL;
$headers .= "Content-Type: multipart/mixed; ";
$headers .= "boundary=" . $boundary . PHP_EOL;
$headers .= "$boundary" . PHP_EOL;

$mensagem .= "Content-Type: ". $fileType ."; name=\"". $fileName . "\"" . PHP_EOL;
$mensagem .= "Content-Transfer-Encoding: base64" . PHP_EOL;
$mensagem .= "Content-Disposition: attachment; filename=\"". $fileName . "\"" . PHP_EOL;
$mensagem .= "$anexo" . PHP_EOL;
$mensagem .= "--$boundary" . PHP_EOL;

$para="[email protected]";
$assunto="teste";

mail($para, $assunto, $mensagem, $headers);

Answer 1

The function mime_content_type() is already obsolete. As said the user @lost, should be used today finfo(), that fulfills the same functionality in a better way. You can add at the beginning of your script the following function, as seen in question:

function _mime_content_type($filename) {
    $result = new finfo();
    if (is_resource($result) === true) {
        return $result->file($filename, FILEINFO_MIME_TYPE);
    }
    return false;
}

And then replace in your script:

$fileType = mime_content_type( $path );

for

$fileType = _mime_content_type( $path );