我在制作Drupla模板时想重写一下核心函数来表现特殊，比如想输出一下标题，或者获取表单或文件名，会经常用到 Drupal API 的 drupal_get_* 函数：
Functions & methods
| Name | Location | Description |
|---|---|---|
| drupal_get_bootstrap_phase | includes/ bootstrap.inc |
Returns the current bootstrap phase for this Drupal process. |
| drupal_get_breadcrumb | includes/ common.inc |
Get the breadcrumb trail for the current page. |
| drupal_get_css | includes/ common.inc |
Returns a themed representation of all stylesheets that should be attached to the page. |
| drupal_get_database_types | includes/ install.inc |
Return all supported database installer objects that are compiled into PHP. |
| drupal_get_destination | includes/ common.inc |
Prepare a 'destination' URL query parameter for use in combination with drupal_goto(). |
| drupal_get_feeds | includes/ common.inc |
Get the feed URLs for the current page. |
| drupal_get_filename | includes/ bootstrap.inc |
Returns and optionally sets the filename for a system item (module, theme, etc.). The filename, whether provided, cached, or retrieved from the database, is only returned if the file exists. |
| drupal_get_filetransfer_info | includes/ common.inc |
Drupal FileTransfer registry. |
| drupal_get_form | includes/ form.inc |
Wrapper for drupal_build_form() for use when $form_state is not needed. |
| drupal_get_hash_salt | includes/ common.inc |
Get a salt useful for hardening against SQL injection. |
| drupal_get_html_head | includes/ common.inc |
Retrieve output to be displayed in the HEAD tag of the HTML page. |
| drupal_get_http_header | includes/ bootstrap.inc |
Get the HTTP response headers for the current page. |
| drupal_get_installed_schema_version | includes/ install.inc |
Returns the currently installed schema version for a module. |
| drupal_get_js | includes/ common.inc |
Returns a themed presentation of all JavaScript code for the current page. |
| drupal_get_library | includes/ common.inc |
Retrieves information for a JavaScript/CSS library. |
| drupal_get_messages | includes/ bootstrap.inc |
Return all messages that have been set. |
| drupal_get_normal_path | includes/ path.inc |
Given a path alias, return the internal path it represents. |
| drupal_get_path | includes/ common.inc |
Returns the path to a system item (module, theme, etc.). |
| drupal_get_path_alias | includes/ path.inc |
Given an internal Drupal path, return the alias set by the administrator. |
| drupal_get_private_key | includes/ common.inc |
Ensure the private key variable used to generate tokens is set. |
| drupal_get_profile | includes/ common.inc |
Get the name of the currently active install profile. |
| drupal_get_query_array | includes/ common.inc |
Split an URL-encoded query string into an array. |
| drupal_get_query_parameters | includes/ common.inc |
Process a URL query parameter array to remove unwanted elements. |
| drupal_get_rdf_namespaces | includes/ common.inc |
Returns a string containing RDF namespace declarations for use in XML and XHTML output. |
| drupal_get_region_content | includes/ common.inc |
Get assigned content for a given region. |
| drupal_get_schema | includes/ bootstrap.inc |
Get the schema definition of a table, or the whole database schema. |
| drupal_get_schema_unprocessed | includes/ common.inc |
Returns the unprocessed and unaltered version of a module's schema. |
| drupal_get_schema_versions | includes/ install.inc |
Returns an array of available schema versions for a module. |
| drupal_get_title | includes/ bootstrap.inc |
获取当前页面的标题，用来显示在页面或文档标题. |
| drupal_get_token | includes/ common.inc |
Generate a token based on $value, the current user session and private key. |
| drupal_get_updaters | includes/ common.inc |
Drupal Updater registry. |
| drupal_get_user_timezone | includes/ bootstrap.inc |
Return the time zone of the current user. |
| _drupal_get_last_caller | includes/ errors.inc |
Gets the last caller from a backtrace. |
