[Check Mime Type] Check if URl is a given MimeType #php #function #mime

checkMime.php

/* ----------------------------------------------------------------------- */
/* [Check Mime Type] Check if URl is a given MimeType #php #function #mime */
/* ----------------------------------------------------------------------- */

function checkMime($url, $mime='application/pdf') {
  // MP3 = 'audio/mpeg' - PDF = 'application/pdf'
  if (!function_exists('curl_init')) die('ERROR - Please install CURL on your PHP!');
  $a = parse_url($url);
  if (checkdnsrr(str_replace('www.','',$a['host']),'A') or checkdnsrr(str_replace('www.','',$a['host']))) {
    $ch = @curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_HEADER, 1);
    curl_setopt($ch, CURLOPT_NOBODY, 1);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 5);
    $results = explode(PHP_EOL, trim(curl_exec($ch)));
    var_dump($results);
    $check = '';
    foreach ($results as $line) {
      if (strtolower(strtok($line, ':')) == 'content-type') {
        $parts = explode(':', $line);
        $check = trim($parts[1]);
      }
    }
    return $check==$mime;
  } else {
    return false;
  }
}