Documentation & API reference
Functions
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| Name |
Location |
Description | Direct uses | Strings |
|---|---|---|---|---|
| _drupal_get_filename_perform_file_scan |
drupal/ |
Performs a file system scan to search for a system resource. | 1 | |
| _drupal_get_filename_fallback_trigger_error |
drupal/ |
Triggers a user-level warning for missing or unexpectedly moved files. | 1 | |
| _drupal_trigger_error_with_delayed_logging |
drupal/ |
Invokes trigger_error() with logging delayed until the end of the request. | 1 | 1 |
| drupal_file_scan_write_cache |
drupal/ |
Writes the file scan cache to the persistent cache. | 2 | |
| drupal_random_key |
drupal/ |
Returns a URL-safe, base64 encoded string of highly randomized bytes (over the full 8-bit range). | 12 | |
| drupal_base64_encode |
drupal/ |
Returns a URL-safe, base64 encoded version of the supplied string. | 1 | |
| drupal_autoload_trait |
drupal/ |
Confirms that a trait is available. | 1 | 1 |
| drupal_check_memory_limit |
drupal/ |
Compares the memory required for an operation to the available memory. | 4 | |
| drupal_clear_opcode_cache |
drupal/ |
Invalidates a PHP file from any active opcode caches. | 1 | |
| _cache_get_object |
drupal/ |
Gets the cache object for a cache bin. | 1 | |
| cache_get |
drupal/ |
Returns data from the persistent cache. | 54 | 1 |
| cache_get_multiple |
drupal/ |
Returns data from the persistent cache when given an array of cache IDs. | 3 | |
| cache_set |
drupal/ |
Stores data in the persistent cache. | 51 | |
| cache_clear_all |
drupal/ |
Expires data from the cache. | 80 | 2 |
| cache_is_empty |
drupal/ |
Checks if a cache bin is empty. | 1 | |
| drupal_add_region_content |
drupal/ |
Adds content to a specified region. | 5 | |
| drupal_get_region_content |
drupal/ |
Gets assigned content for a given region. | 3 | |
| drupal_get_profile |
drupal/ |
Gets the name of the currently active installation profile. | 15 | |
| drupal_set_breadcrumb |
drupal/ |
Sets the breadcrumb trail for the current page. | 8 | |
| drupal_get_breadcrumb |
drupal/ |
Gets the breadcrumb trail for the current page. | 1 | |
| drupal_get_rdf_namespaces |
drupal/ |
Returns a string containing RDF namespace declarations for use in XML and XHTML output. | 1 | |
| drupal_add_html_head |
drupal/ |
Adds output to the HEAD tag of the HTML page. | 7 | |
| _drupal_default_html_head |
drupal/ |
Returns elements that are always displayed in the HEAD tag of the HTML page. | 1 | |
| drupal_get_html_head |
drupal/ |
Retrieves output to be displayed in the HEAD tag of the HTML page. | 4 | |
| drupal_add_feed |
drupal/ |
Adds a feed URL for the current page. | 9 | |
| drupal_get_feeds |
drupal/ |
Gets the feed URLs for the current page. | 1 | |
| drupal_get_query_parameters |
drupal/ |
Processes a URL query parameter array to remove unwanted elements. | 12 | |
| drupal_get_query_array |
drupal/ |
Splits a URL-encoded query string into an array. | 4 | |
| drupal_http_build_query |
drupal/ |
Parses an array into a valid, rawurlencoded query string. | 9 | |
| drupal_get_destination |
drupal/ |
Prepares a 'destination' URL query parameter for use with drupal_goto(). | 29 | |
| drupal_parse_url |
drupal/ |
Parses a URL string into its path, query, and fragment components. | 6 | |
| drupal_encode_path |
drupal/ |
Encodes a Drupal path for use in a URL. | 3 | |
| drupal_goto |
drupal/ |
Sends the user to a different page. | 45 | 4 |
| drupal_site_offline |
drupal/ |
Delivers a "site is under maintenance" message to the browser. | ||
| drupal_not_found |
drupal/ |
Delivers a "page not found" error to the browser. | 10 | |
| drupal_access_denied |
drupal/ |
Delivers an "access denied" error to the browser. | 7 | |
| drupal_http_request |
drupal/ |
Performs an HTTP request. | 16 | |
| _drupal_http_use_proxy |
drupal/ |
Helper function for determining hosts excluded from needing a proxy. | 1 | |
| _fix_gpc_magic |
drupal/ |
Strips slashes from a string or array of strings. | 1 | |
| _fix_gpc_magic_files |
drupal/ |
Strips slashes from $_FILES items. | 1 | |
| fix_gpc_magic |
drupal/ |
Fixes double-escaping caused by "magic quotes" in some PHP installations. | 1 | |
| valid_email_address |
drupal/ |
Verifies the syntax of the given e-mail address. | 8 | |
| valid_url |
drupal/ |
Verifies the syntax of the given URL. | 11 | |
| flood_register_event |
drupal/ |
Registers an event for the current visitor to the flood control mechanism. | 4 | |
| flood_clear_event |
drupal/ |
Makes the flood control mechanism forget an event for the current visitor. | 1 | |
| flood_is_allowed |
drupal/ |
Checks whether a user is allowed to proceed with the specified event. | 4 | |
| drupal_strip_dangerous_protocols |
drupal/ |
Strips dangerous protocols (e.g. 'javascript:') from a URI. | 7 | |
| check_url |
drupal/ |
Strips dangerous protocols from a URI and encodes it for output to HTML. | 17 | |
| filter_xss_admin |
drupal/ |
Applies a very permissive XSS/HTML filter for admin-only use. | 23 | 1 |
| filter_xss |
drupal/ |
Filters HTML to prevent cross-site-scripting (XSS) vulnerabilities. | 24 |