Fatal error: Call to undefined function get_allowed_mime_types()

I’ve got exactly the same problem.

It first happened when i was trying to update the Google XML Sitemap plugin and now when i try to upgrade WordPress to 1.9 …

No idea what to do ??

Hello there,

I believe to have found (one) solution.

I ran into that problem when uploading an image file with two extensions, say “xyz.jpg.gif”. In that case wordpress will double-check allowed mime types.

The function that is supposed to do that & that is called (in wp-includes/functions.php) seems to be removed from one of the newer wordpress versions (2.8.5 or 2.8.6) eventhough it is called in this situation. I think the latter version.

So I copy-&-pasted the appropriate function at the end of functions.php:

/**
* Retrieve list of allowed mime types and file extensions.
*
* @since 2.8.6
*
* @return array Array of mime types keyed by the file extension regex corresponding to those types.
*/
function get_allowed_mime_types() {
static $mimes = false;

if ( !$mimes ) {
// Accepted MIME types are set here as PCRE unless provided.
$mimes = apply_filters( ‘upload_mimes’, array(
‘jpg|jpeg|jpe’ => ‘image/jpeg’,
‘gif’ => ‘image/gif’,
‘png’ => ‘image/png’,
‘bmp’ => ‘image/bmp’,
‘tif|tiff’ => ‘image/tiff’,
‘ico’ => ‘image/x-icon’,
‘asf|asx|wax|wmv|wmx’ => ‘video/asf’,
‘avi’ => ‘video/avi’,
‘divx’ => ‘video/divx’,
‘mov|qt’ => ‘video/quicktime’,
‘mpeg|mpg|mpe’ => ‘video/mpeg’,
‘txt|c|cc|h’ => ‘text/plain’,
‘rtx’ => ‘text/richtext’,
‘css’ => ‘text/css’,
‘htm|html’ => ‘text/html’,
‘mp3|m4a’ => ‘audio/mpeg’,
‘mp4|m4v’ => ‘video/mp4’,
‘ra|ram’ => ‘audio/x-realaudio’,
‘wav’ => ‘audio/wav’,
‘ogg’ => ‘audio/ogg’,
‘mid|midi’ => ‘audio/midi’,
‘wma’ => ‘audio/wma’,
‘rtf’ => ‘application/rtf’,
‘js’ => ‘application/javascript’,
‘pdf’ => ‘application/pdf’,
‘doc|docx’ => ‘application/msword’,
‘pot|pps|ppt|pptx’ => ‘application/vnd.ms-powerpoint’,
‘wri’ => ‘application/vnd.ms-write’,
‘xla|xls|xlsx|xlt|xlw’ => ‘application/vnd.ms-excel’,
‘mdb’ => ‘application/vnd.ms-access’,
‘mpp’ => ‘application/vnd.ms-project’,
‘swf’ => ‘application/x-shockwave-flash’,
‘class’ => ‘application/java’,
‘tar’ => ‘application/x-tar’,
‘zip’ => ‘application/zip’,
‘gz|gzip’ => ‘application/x-gzip’,
‘exe’ => ‘application/x-msdownload’,
// openoffice formats
‘odt’ => ‘application/vnd.oasis.opendocument.text’,
‘odp’ => ‘application/vnd.oasis.opendocument.presentation’,
‘ods’ => ‘application/vnd.oasis.opendocument.spreadsheet’,
‘odg’ => ‘application/vnd.oasis.opendocument.graphics’,
‘odc’ => ‘application/vnd.oasis.opendocument.chart’,
‘odb’ => ‘application/vnd.oasis.opendocument.database’,
‘odf’ => ‘application/vnd.oasis.opendocument.formula’,
) );
}

return $mimes;
}