Common Data Reading APIs of drupal7

Introduction: This is a detailed page of drupal7's Common Data Reading API. It introduces PHP, related knowledge, skills, experience, and some PHP source code.

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Node_load ($ nid = NULL, $ vid = NULL, $ reset = false );
Node_load_multiple ($ NIDs = array (), $ conditions = array (), $ reset = false );

// User
User_load ($ uid, $ reset = false );
User_load_multiple ($ UIDs = array (), $ conditions = array (), $ reset = false );

// Menu tree
Menu_tree_all_data ($ menu_name, $ link = NULL, $ max_depth = NULL );
Menu_tree_page_data ($ menu_name, $ max_depth = NULL, $ only_active_trail = false );

// Term
Taxonomy_term_load ($ tid): Object
Taxonomy_term_load_multiple ($ tids = array (), $ conditions = array (): Array
Taxonomy_get_tree ($ vid, $ parent = 0, $ max_depth = NULL, $ load_entities = false): Array

// Block
Block_load ($ module, $ delta );

// Pager
Db_select ('node', 'n ')
-> Extend ('pagerdefault')-> limit (5)
-> Fields ('n ');
-> Fetchfield ();
Db_query_range ('select N. NID, N. Title, N. Created
From {node} n where N. uid =: uid', 0, 10, array (': uid' => $ UID ));

$ Fields = array ('nid' => 1, 'title' => 'my title', 'body' => ''my body ');
Db_insert ('node')-> fields ($ fields)-> execute ();

Db_update ('example ')
-> Condition ('id', $ id)
-> Fields (Array ('field2' => 10 ))
-> Execute ();

// Select
$ Query = db_select ('comment', 'C ')
-> Fields ('C', array ('subobject', 'name '))
-> Fields ('n', array ('title '))
-> Extend ('pagerdefault')-> limit (5)
-> Condition ('n'. type', array ('Article'), 'in ')
-> Orderby ('C. cid', 'desc ');
$ Query-> join ('node', 'n', 'n'. nid = C. nid ');
$ DATA = $ query-> execute ();

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