Documentation & API reference
Functions
Primary tabs
| Name |
Location |
Description | Direct uses | Strings |
|---|---|---|---|---|
| drupal_valid_http_host |
drupal/ |
Validates that a hostname (for example $_SERVER['HTTP_HOST']) is safe. | 2 | |
| unicode_check |
drupal/ |
Checks for Unicode support in PHP and sets the proper settings if possible. | 3 | |
| drupal_settings_initialize |
drupal/ |
Sets the base URL, cookie domain, and session name from configuration. | 1 | |
| drupal_get_filename |
drupal/ |
Returns and optionally sets the filename for a system resource. | 9 | |
| variable_initialize |
drupal/ |
Loads the persistent variable table. | 2 | |
| variable_get |
drupal/ |
Returns a persistent variable. | 233 | 1 |
| variable_set |
drupal/ |
Sets a persistent variable. | 121 | |
| variable_del |
drupal/ |
Unsets a persistent variable. | 26 | |
| drupal_page_get_cache |
drupal/ |
Retrieves the current page from the cache. | 2 | |
| drupal_page_is_cacheable |
drupal/ |
Determines the cacheability of the current page. | 5 | |
| bootstrap_invoke_all |
drupal/ |
Invokes a bootstrap hook in all bootstrap modules that implement it. | 3 | |
| drupal_load |
drupal/ |
Includes a file with the provided type and name. | 15 | |
| drupal_add_http_header |
drupal/ |
Sets an HTTP response header for the current page. | 14 | |
| drupal_get_http_header |
drupal/ |
Gets the HTTP response headers for the current page. | 3 | |
| _drupal_set_preferred_header_name |
drupal/ |
Sets the preferred name for the HTTP header. | 3 | |
| drupal_send_headers |
drupal/ |
Sends the HTTP response headers that were previously set, adding defaults. | 3 | |
| drupal_page_header |
drupal/ |
Sets HTTP headers in preparation for a page response. | 1 | |
| drupal_serve_page_from_cache |
drupal/ |
Sets HTTP headers in preparation for a cached page response. | 3 | |
| bootstrap_hooks |
drupal/ |
Defines the critical hooks that force modules to always be loaded. | 1 | |
| t |
drupal/ |
Translates a string to the current language or to a given language. | 2,423 | 57 |
| format_string |
drupal/ |
Replaces placeholders with sanitized values in a string. | 281 | 1 |
| check_plain |
drupal/ |
Encodes special characters in a plain-text string for display as HTML. | 262 | 15 |
| drupal_validate_utf8 |
drupal/ |
Checks whether a string is valid UTF-8. | 1 | |
| request_uri |
drupal/ |
Returns the equivalent of Apache's $_SERVER['REQUEST_URI'] variable. | 11 | |
| watchdog_exception |
drupal/ |
Logs an exception. | 9 | |
| watchdog |
drupal/ |
Logs a system message. | 124 | 4 |
| drupal_set_message |
drupal/ |
Sets a message to display to the user. | 264 | |
| drupal_get_messages |
drupal/ |
Returns all messages that have been set with drupal_set_message(). | 6 | |
| drupal_get_title |
drupal/ |
Gets the title of the current page. | 9 | |
| drupal_set_title |
drupal/ |
Sets the title of the current page. | 81 | |
| drupal_random_bytes |
drupal/ |
Returns a string of highly randomized bytes (over the full 8-bit range). | 8 | |
| drupal_hmac_base64 |
drupal/ |
Calculates a base-64 encoded, URL-safe sha-256 hmac. | 6 | |
| drupal_hash_base64 |
drupal/ |
Calculates a base-64 encoded, URL-safe sha-256 hash. | 20 | |
| drupal_get_hash_salt |
drupal/ |
Gets a salt useful for hardening against SQL injection. | 6 | |
| drupal_array_merge_deep |
drupal/ |
Merges multiple arrays, recursively, and returns the merged array. | 3 | |
| drupal_array_merge_deep_array |
drupal/ |
Merges multiple arrays, recursively, and returns the merged array. | 2 | |
| drupal_anonymous_user |
drupal/ |
Generates a default anonymous $user object. | 10 | |
| drupal_bootstrap |
drupal/ |
Ensures Drupal is bootstrapped to the specified phase. | 14 | |
| drupal_get_user_timezone |
drupal/ |
Returns the time zone of the current user. | 8 | |
| _drupal_error_handler |
drupal/ |
Provides custom PHP error handling. | 3 | |
| _drupal_exception_handler |
drupal/ |
Provides custom PHP exception handling. | 3 | |
| _drupal_bootstrap_configuration |
drupal/ |
Sets up the script environment and loads settings.php. | 1 | |
| _drupal_bootstrap_kernel |
drupal/ |
Initialize the kernel / service container. | 1 | |
| _drupal_bootstrap_page_cache |
drupal/ |
Attempts to serve a page from the cache. | 1 | |
| _drupal_initialize_db_test_prefix |
drupal/ |
In a test environment, get the test db prefix and set it in $databases. | 1 | |
| _drupal_bootstrap_database |
drupal/ |
Initializes the database system by loading database.inc. | 1 | |
| _drupal_bootstrap_variables |
drupal/ |
Loads system variables and all enabled bootstrap modules. | 1 | |
| _drupal_bootstrap_page_header |
drupal/ |
Invokes hook_boot(), initializes locking system, and sends HTTP headers. | 1 | |
| drupal_get_bootstrap_phase |
drupal/ |
Returns the current bootstrap phase for this Drupal process. | 3 | |
| drupal_container |
drupal/ |
Retrieves the Drupal Container to standardize object construction. | 10 |