Documentation & API reference
Functions
Primary tabs
| Name | Location | Description | Direct uses |
Strings |
|---|---|---|---|---|
| valid_email_address |
drupal/ |
Verifies the syntax of the given e-mail address. | 4 | |
| valid_url |
drupal/ |
Verifies the syntax of the given URL. | 7 | |
| valid_number_step |
drupal/ |
Verifies that a number is a multiple of a given step. | 3 | |
| drupal_strip_dangerous_protocols |
drupal/ |
Strips dangerous protocols (e.g. 'javascript:') from a URI. | 8 | |
| check_url |
drupal/ |
Strips dangerous protocols from a URI and encodes it for output to HTML. | 22 | |
| filter_xss |
drupal/ |
Filters HTML to prevent cross-site-scripting (XSS) vulnerabilities. | 26 | |
| _filter_xss_attributes |
drupal/ |
Processes a string of HTML attributes. | 1 | |
| filter_xss_bad_protocol |
drupal/ |
Processes an HTML attribute value and strips dangerous protocols from URLs. | 1 | |
| format_rss_channel |
drupal/ |
Formats an RSS channel. | 2 | |
| format_rss_item |
drupal/ |
Formats a single RSS item. | 2 | |
| format_xml_elements |
drupal/ |
Formats XML elements. | 7 | |
| format_plural |
drupal/ |
Formats a string containing a count of items. | 64 | |
| parse_size |
drupal/ |
Parses a given byte count. | 7 | |
| format_size |
drupal/ |
Generates a string representation for the given byte count. | 17 | |
| format_date |
drupal/ |
Formats a date, using a date type or a custom date format string. | 65 | |
| url_is_external |
drupal/ |
Returns TRUE if a path is external to Drupal (e.g. http://example.com). | 7 | |
| drupal_http_header_attributes |
drupal/ |
Formats an attribute string for an HTTP header. | 1 | |
| drupal_exit |
drupal/ |
Performs end-of-request tasks. | 12 | |
| drupal_map_assoc |
drupal/ |
Forms an associative array from a linear array. | 51 | |
| drupal_set_time_limit |
drupal/ |
Attempts to set the PHP maximum execution time. | 4 | |
| base_path |
drupal/ |
Returns the base URL path (i.e., directory) of the Drupal installation. | 28 | |
| drupal_add_html_head_link |
drupal/ |
Adds a LINK tag with a distinct 'rel' attribute to the page's HEAD. | 9 | |
| drupal_get_css |
drupal/ |
Returns a themed representation of all stylesheets to attach to the page. | 15 | |
| drupal_build_css_cache |
drupal/ |
Aggregates and optimizes CSS files into a cache file in the files directory. | 1 | |
| drupal_load_stylesheet |
drupal/ |
Loads the stylesheet and resolves all @import commands. | 4 | |
| drupal_load_stylesheet_content |
drupal/ |
Processes the contents of a stylesheet for aggregation. | 3 | |
| drupal_html_class |
drupal/ |
Prepares a string for use as a valid class name. | 17 | |
| drupal_region_class |
drupal/ |
Provides a standard HTML class name that identifies a page region. | 2 | |
| drupal_js_defaults |
drupal/ |
Constructs an array of the defaults that are used for JavaScript items. | 3 | |
| drupal_get_js |
drupal/ |
Returns a themed presentation of all JavaScript code for the current page. | 23 | |
| drupal_process_attached |
drupal/ |
Adds attachments to a render() structure. | 3 | |
| drupal_process_states |
drupal/ |
Adds JavaScript to change the state of an element based on another element. | 1 | |
| drupal_add_tabledrag |
drupal/ |
Assists in adding the tableDrag JavaScript behavior to a themed table. | 18 | |
| drupal_build_js_cache |
drupal/ |
Aggregates JavaScript files into a cache file in the files directory. | 3 | |
| drupal_json_encode |
drupal/ |
Converts a PHP variable into its JavaScript equivalent. | 8 | |
| drupal_json_decode |
drupal/ |
Converts an HTML-safe JSON string into its PHP equivalent. | 14 | |
| drupal_get_private_key |
drupal/ |
Ensures the private key variable used to generate tokens is set. | 3 | |
| drupal_get_token |
drupal/ |
Generates a token based on $value, the user session, and the private key. | 12 | |
| drupal_valid_token |
drupal/ |
Validates a token based on $value, the user session, and the private key. | 11 | |
| _drupal_bootstrap_code |
drupal/ |
Loads code for subsystems and modules, and registers stream wrappers. | 1 | |
| _drupal_bootstrap_full |
drupal/ |
Temporary BC function for scripts not using DrupalKernel. | 2 | |
| drupal_page_set_cache |
drupal/ |
Stores the current page in the cache. | 1 | |
| drupal_cron_run |
drupal/ |
Executes a cron run when called. | 9 | |
| drupal_set_page_content |
drupal/ |
Sets the main page content value for later use. | 6 | |
| drupal_render_page |
drupal/ |
Renders the page, including all theming. | 6 | |
| drupal_render_children |
drupal/ |
Renders children of an element and concatenates them. | 42 | |
| drupal_render_cache_get |
drupal/ |
Gets the rendered output of a renderable element from the cache. | 2 | |
| drupal_render_cache_set |
drupal/ |
Caches the rendered output of a renderable element. | 1 | |
| drupal_render_collect_attached |
drupal/ |
Collects #attached for an element and its children into a single array. | 2 | |
| drupal_render_cache_by_query |
drupal/ |
Prepares an element for caching based on a query. | 1 |