Same name in other branches

1. 9 core/lib/Drupal/Core/File/file.api.php \hook_file_mimetype_mapping_alter()
2. 8.9.x core/lib/Drupal/Core/File/file.api.php \hook_file_mimetype_mapping_alter()
3. 10 core/lib/Drupal/Core/File/file.api.php \hook_file_mimetype_mapping_alter()
4. 11.x core/lib/Drupal/Core/File/file.api.php \hook_file_mimetype_mapping_alter()

Alter MIME type mappings used to determine MIME type from a file extension.

This hook is run when file_mimetype_mapping() is called. It is used to allow modules to add to or modify the default mapping from file_default_mimetype_mapping().

Parameters

$mapping: An array of mimetypes correlated to the extensions that relate to them. The array has 'mimetypes' and 'extensions' elements, each of which is an array.

See also

file_default_mimetype_mapping()

Related topics

1 function implements hook_file_mimetype_mapping_alter()

Note: this list is generated by pattern matching, so it may include some functions that are not actually implementations of this hook.

file_test_file_mimetype_mapping_alter in modules/simpletest/tests/file_test.module

Implements hook_file_mimetype_mapping_alter().

1 invocation of hook_file_mimetype_mapping_alter()

file_mimetype_mapping in includes/file.mimetypes.inc

Return an array of MIME extension mappings.

File

modules/system/system.api.php, line 3964

Code

function hook_file_mimetype_mapping_alter(&$mapping) {
    // Add new MIME type 'drupal/info'.
    $mapping['mimetypes']['example_info'] = 'drupal/info';
    // Add new extension '.info' and map it to the 'drupal/info' MIME type.
    $mapping['extensions']['info'] = 'example_info';
    // Override existing extension mapping for '.ogg' files.
    $mapping['extensions']['ogg'] = 189;
}

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