php get file mime type

1$fileSizeInBytes=filesize("/path/to/myfile.txt"); 

1echo mime_content_type("yourfile.gif"); //image/gif

1<?php
2echo filetype('/etc/passwd');  // file
3echo filetype('/etc/');        // dir
4?>
5
6

1function get_content_mime_type($content)
2{
3  $url = 'http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types';
4  $url_live = false;
5  $handle = curl_init($url);
6  curl_setopt_array($handle, array(
7    CURLOPT_FOLLOWLOCATION => true,
8    CURLOPT_NOBODY => true,
9    CURLOPT_HEADER => false,
10    CURLOPT_RETURNTRANSFER => false,
11    CURLOPT_SSL_VERIFYHOST => false,
12    CURLOPT_SSL_VERIFYPEER => false
13  ));
14  $response = curl_exec($handle);
15  $httpCode = curl_getinfo($handle, CURLINFO_EFFECTIVE_URL);
16  $httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE);
17  if ($httpCode == 200)
18  {
19    $url_live = true;
20  }
21  $url_live = $url_live;
22  curl_close($handle);
23  $mimes = array();
24  if ($url_live)
25  {
26    $mimes_file = file_get_contents($url);
27    preg_match_all('#^([^\s]{2,}?)\s+(.+?)$#ism', $mimes_file, $matches, PREG_SET_ORDER);
28    foreach ($matches as $match)
29    {
30      $exts = explode(" ", $match[2]);
31      foreach ($exts as $ext)
32      {
33        $mimes[$ext] = $match[1];
34      }
35    }
36  }
37  else
38  {
39    $mimes = array(
40      'txt' => 'text/plain',
41      'htm' => 'text/html',
42      'html' => 'text/html',
43      'php' => 'text/html',
44      'css' => 'text/css',
45      'js' => 'application/javascript',
46      'json' => 'application/json',
47      'xml' => 'application/xml',
48      'swf' => 'application/x-shockwave-flash',
49      'flv' => 'video/x-flv',
50      // images
51      'png' => 'image/png',
52      'jpe' => 'image/jpeg',
53      'jpeg' => 'image/jpeg',
54      'jpg' => 'image/jpeg',
55      'gif' => 'image/gif',
56      'bmp' => 'image/bmp',
57      'ico' => 'image/vnd.microsoft.icon',
58      'tiff' => 'image/tiff',
59      'tif' => 'image/tiff',
60      'svg' => 'image/svg+xml',
61      'svgz' => 'image/svg+xml',
62      // archives
63      'zip' => 'application/zip',
64      'rar' => 'application/x-rar-compressed',
65      'exe' => 'application/x-msdownload',
66      'msi' => 'application/x-msdownload',
67      'cab' => 'application/vnd.ms-cab-compressed',
68      // audio/video
69      'mp3' => 'audio/mpeg',
70      'qt' => 'video/quicktime',
71      'mov' => 'video/quicktime',
72      // adobe
73      'pdf' => 'application/pdf',
74      'psd' => 'image/vnd.adobe.photoshop',
75      'ai' => 'application/postscript',
76      'eps' => 'application/postscript',
77      'ps' => 'application/postscript',
78      // ms office
79      'doc' => 'application/msword',
80      'rtf' => 'application/rtf',
81      'xls' => 'application/vnd.ms-excel',
82      'ppt' => 'application/vnd.ms-powerpoint',
83      'docx' => 'application/msword',
84      'xlsx' => 'application/vnd.ms-excel',
85      'pptx' => 'application/vnd.ms-powerpoint',
86      // open office
87      'odt' => 'application/vnd.oasis.opendocument.text',
88      'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
89    );
90  }
91  $content_mime = 'unknown';
92  if (is_file($content))
93  {
94    if (isset(pathinfo($content) ['extension']))
95    {
96      $content_ext = pathinfo($content) ['extension'];
97      if (isset($mimes[$content_ext]))
98      {
99        $content_mime = $mimes[$content_ext];
100      }
101      else
102      {
103        if (is_readable($content) && is_executable($content))
104        {
105          $finfo = finfo_open(FILEINFO_MIME_TYPE);
106          $content_mime = finfo_file($finfo, $content);
107          if ($content_mime === null | $content_mime === "")
108          {
109            $content_mime = "application/octet-stream";
110          }
111          else
112          {
113            $content_mime = $content_mime;
114          }
115          finfo_close($finfo);
116        }
117        else
118        {
119          $content_mime = "application/octet-stream";
120        }
121      }
122    }
123  }
124  else
125  {
126    // return whatever you want
127    // $content_mime = 'unknown';
128
129  }
130  $content_mime = $content_mime;
131  return $content_mime;
132}
133