Determines an Internet Media Type or MIME type from a filename.

Parameters

$uri: A string containing the URI, path, or filename.

$mapping: An optional map of extensions to their mimetypes, in the form:

• 'mimetypes': a list of mimetypes, keyed by an identifier,
• 'extensions': the mapping itself, an associative array in which the key is the extension (lowercase) and the value is the mimetype identifier. If $mapping is NULL file_mimetype_mapping() is called.

Return value

The internet media type registered for the extension or application/octet-stream for unknown extensions.

See also

file_default_mimetype_mapping()

Related topics

7 calls to file_get_mimetype()

FileMimeTypeTest::testFileMimeTypeDetection in modules/simpletest/tests/file.test

Test mapping of mimetypes from filenames.

file_module_test_file_download in modules/file/tests/file_module_test.module

Implements hook_file_download().

file_save_data in includes/file.inc

Saves a file to the specified destination and creates a database entry.

file_save_upload in includes/file.inc

Saves a file upload to a new location.

system_theme_settings_submit in modules/system/system.admin.inc

Process system_theme_settings form submissions.

... See full list

File

includes/file.inc, line 2304

Code

function file_get_mimetype($uri, $mapping = NULL) {
    if ($wrapper = file_stream_wrapper_get_instance_by_uri($uri)) {
        return $wrapper->getMimeType($uri, $mapping);
    }
    else {
        // getMimeType() is not implementation specific, so we can directly
        // call it without an instance.
        return DrupalLocalStreamWrapper::getMimeType($uri, $mapping);
    }
}

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