Documentation & API reference
Functions
Primary tabs
| Name | Location | Description |
Direct uses |
Strings |
|---|---|---|---|---|
| file_prepare_directory |
drupal/ |
Checks that the directory exists and is writable. | 24 | |
| filter_xss |
drupal/ |
Filters HTML to prevent cross-site-scripting (XSS) vulnerabilities. | 24 | |
| base_path |
drupal/ |
Returns the base URL path (i.e., directory) of the Drupal installation. | 24 | |
| form_set_value |
drupal/ |
Changes submitted form values during form validation. | 24 | |
| conf_path |
drupal/ |
Returns the appropriate configuration directory. | 24 | 3 |
| drupal_add_http_header |
drupal/ |
Sets an HTTP response header for the current page. | 24 | |
| db_table_exists |
drupal/ |
Checks if a table exists. | 24 | |
| db_drop_table |
drupal/ |
Drops a table. | 25 | |
| db_add_field |
drupal/ |
Adds a new field to a table. | 25 | |
| node_type_get_name |
drupal/ |
Returns the node type name of the passed node or node type string. | 25 | |
| node_save |
drupal/ |
Saves changes to a node or adds a new node. | 25 | 1 |
| file_scan_directory |
drupal/ |
Finds all files that match a given mask in a given directory. | 26 | 1 |
| list_themes |
drupal/ |
Returns a list of all currently available themes. | 26 | 1 |
| language_default |
drupal/ |
Returns the default language, as an object, or one of its properties. | 26 | 9 |
| field_info_instances |
drupal/ |
Retrieves information about field instances. | 26 | |
| field_update_field |
drupal/ |
Updates a field. | 26 | |
| module_enable |
drupal/ |
Enables or installs a given list of modules. | 27 | |
| drupal_get_schema |
drupal/ |
Gets the schema definition of a table, or the whole database schema. | 27 | |
| user_save |
drupal/ |
Save changes to a user account or add a new user. | 27 | |
| form_error |
drupal/ |
Flags an element as having an error. | 28 | |
| drupal_hash_base64 |
drupal/ |
Calculates a base-64 encoded, URL-safe sha-256 hash. | 28 | |
| arg |
drupal/ |
Returns a component of the current Drupal path. | 28 | |
| drupal_get_destination |
drupal/ |
Prepares a 'destination' URL query parameter for use with drupal_goto(). | 29 | |
| format_interval |
drupal/ |
Formats a time interval with the requested granularity. | 30 | 8 |
| file_uri_scheme |
drupal/ |
Returns the scheme of a URI (e.g. a stream). | 31 | |
| format_username |
drupal/ |
Format a username. | 31 | 1 |
| drupal_render_children |
drupal/ |
Renders children of an element and concatenates them. | 31 | |
| menu_get_item |
drupal/ |
Gets a router item. | 31 | |
| module_list |
drupal/ |
Returns a list of currently active modules. | 32 | |
| drupal_basename |
drupal/ |
Gets the filename from a given path. | 32 | |
| drupal_write_record |
drupal/ |
Saves (inserts or updates) a record to the database based upon the schema. | 33 | |
| db_add_index |
drupal/ |
Adds an index. | 33 | |
| file_create_url |
drupal/ |
Creates a web-accessible URL for a stream to an external or local file. | 37 | |
| entity_get_info |
drupal/ |
Get the entity info array of an entity type. | 37 | 1 |
| db_create_table |
drupal/ |
Creates a new table from a Drupal table definition. | 37 | |
| drupal_map_assoc |
drupal/ |
Forms an associative array from a linear array. | 38 | |
| st |
drupal/ |
Translates a string when some systems are not available. | 39 | 2 |
| file_load |
drupal/ |
Loads a single file object from the database. | 39 | |
| drupal_attributes |
drupal/ |
Converts an associative array to an XML/HTML tag attribute string. | 41 | |
| drupal_add_css |
drupal/ |
Adds a cascading stylesheet to the stylesheet queue. | 42 | 3 |
| entity_extract_ids |
drupal/ |
Helper function to extract id, vid, and bundle name from an entity. | 42 | |
| module_exists |
drupal/ |
Determines whether a given module exists. | 43 | |
| confirm_form |
drupal/ |
Generates a form array for a confirmation form. | 43 | |
| field_test_create_stub_entity |
drupal/ |
Creates a basic test_entity entity. | 43 | 1 |
| drupal_goto |
drupal/ |
Sends the user to a different page. | 45 | 4 |
| module_load_include |
drupal/ |
Loads a module include file. | 46 | |
| field_info_instance |
drupal/ |
Returns an array of instance data for a specific field and bundle. | 46 | |
| drupal_realpath |
drupal/ |
Resolves the absolute filepath of a local URI or filepath. | 47 | |
| language_list |
drupal/ |
Returns a list of installed languages, indexed by the specified key. | 47 | 14 |
| drupal_strtolower |
drupal/ |
Lowercase a UTF-8 string. | 49 |