php实现的mongodb操作类实例_PHP教程
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这篇文章主要介绍了php实现的mongodb操作类,较为详细的分析了php针对mongodb数据库操作的各种常用技巧,并将其封装进一个完整的类文件中以便于调用,非常具有实用价值,需要的朋友可以参考下
本文实例讲述了php实现的mongodb操作类。分享给大家供大家参考。具体如下:
- <?php
- /*
- * To change this template, choose Tools | Templates
- * and open the template in the editor.
- */
- class mongo_db {
- private $config;
- private $connection;
- private $db;
- private $connection_string;
- private $host;
- private $port;
- private $user;
- private $pass;
- private $dbname;
- private $persist;
- private $persist_key;
- private $selects = array();
- private $wheres = array();
- private $sorts = array();
- private $limit = 999999;
- private $offset = 0;
- private $timeout = 200;
- private $key = 0;
- /**
- *
- * CONSTRUCTOR *
- *
- * Automatically check if the Mongo PECL extension has been
- installed/enabled.
- * Generate the connection string and establish a connection
- to the MongoDB.
- */
- public function __construct() {
- if((IS_NOSQL != 1)){
- return;
- }
- if (!class_exists('Mongo')) {
- //$this->error("The MongoDB PECL extension has not been installed or enabled", 500);
- }
- $configs =wxcity_base::load_config("cache","mongo_db");
- $num = count($configs['connect']);
- $this->timeout = trim($configs['timeout']);
- $keys = wxcity_base::load_config('double');
- $this->key = $keys['mongo_db'];
- $this->config = $configs['connect'][$this->key];
- $status = $this->connect();
- if($status == false)
- {
- for($i = 1; $i < $num; $i++)
- {
- $n = $this->key + $i;
- $key = $n >= $num ? $n - $num : $n;
- $this->config = $configs['connect'][$key];
- $status = $this->connect();
- if($status!=false)
- {
- $keys['mongo_db'] = $key ;
- $this->key = $key;
- $data = "<?php\nreturn ".var_export($keys, true).";\n?>";
- file_put_contents(WHTY_PATH.'configs/double.php', $data, LOCK_EX);
- break;
- }
- }
- }
- if($status==false)
- {
- die('mongoDB not connect');
- }
- }
- function __destruct() {
- if((IS_NOSQL != 1)){
- return;
- }
- if($this->connection)
- {
- $this->connection->close();
- }
- }
- /**
- *
- * CONNECT TO MONGODB *
- *
- * Establish a connection to MongoDB using
- the connection string generated in
- * the connection_string() method.
- If 'mongo_persist_key' was set to true in the
- * config file, establish a persistent connection.
- We allow for only the 'persist'
- * option to be set because we want to
- establish a connection immediately.
- */
- private function connect() {
- $this->connection_string();
- $options = array('connect'=>true,'timeout'=>$this->timeout);
- try {
- $this->connection = new Mongo($this->connection_string, $options);
- $this->db = $this->connection->{$this->dbname};
- return($this);
- } catch (MongoConnectionException $e) {
- return false;
- }
- }
- /**
- *
- * BUILD CONNECTION STRING *
- *
- * Build the connection string from the config file.
- */
- private function connection_string() {
- $this->host = trim($this->config['hostname']);
- $this->port = trim($this->config['port']);
- $this->user = trim($this->config['username']);
- $this->pass = trim($this->config['password']);
- $this->dbname = trim($this->config['database']);
- $this->persist = trim($this->config['autoconnect']);
- $this->persist_key = trim($this->config['mongo_persist_key']);
- $connection_string = "mongodb://";
- if (emptyempty($this->host)) {
- $this->error("The Host must be set to connect to MongoDB", 500);
- } if (emptyempty($this->dbname)) {
- $this->error("The Database must be set to connect to MongoDB", 500);
- } if (!emptyempty($this->user) && !emptyempty($this->pass)) {
- $connection_string .= "{$this->user}:{$this->pass}@";
- } if (isset($this->port) && !emptyempty($this->port)) {
- $connection_string .= "{$this->host}:{$this->port}";
- } else {
- $connection_string .= "{$this->host}";
- } $this->connection_string = trim($connection_string);
- }
- /**
- *
- * Switch_db *
- *
- * Switch from default database to a different db
- */
- public function switch_db($database = '') {
- if (emptyempty($database)) {
- $this->error("To switch MongoDB databases, a new database name must be specified", 500);
- } $this->dbname = $database;
- try {
- $this->db = $this->connection->{$this->dbname};
- return(TRUE);
- } catch (Exception $e) {
- $this->error("Unable to switch Mongo Databases: {$e->getMessage()}", 500);
- }
- }
- /**
- *
- * SELECT FIELDS *
- *
- * Determine which fields to include OR which to
- exclude during the query process.
- * Currently, including and excluding at
- the same time is not available, so the
- * $includes array will take precedence over
- the $excludes array.
- If you want to
- * only choose fields to exclude,
- leave $includes an empty array().
- *
- * @usage: $this->mongo_db->select(array('foo', 'bar'))->get('foobar');
- */
- public function select($includes = array(), $excludes = array()) {
- if (!is_array($includes)) {
- $includes = array();
- }
- if (!is_array($excludes)) {
- $excludes = array();
- }
- if (!emptyempty($includes)) {
- foreach ($includes as $col) {
- $this->selects[$col] = 1;
- }
- } else {
- foreach ($excludes as $col) {
- $this->selects[$col] = 0;
- }
- } return($this);
- }
- /**
- *
- * WHERE PARAMETERS *
- *
- * Get the documents based on these
- search parameters. The $wheres array should
- * be an associative array with the field
- as the key and the value as the search
- * criteria. *
- * @usage = $this->mongo_db->where(array('foo' => 'bar'))->get('foobar');
- */
- public function where($wheres = array()) {
- foreach ((array)$wheres as $wh => $val) {
- $this->wheres[$wh] = $val;
- } return($this);
- }
- /**
- *
- * WHERE_IN PARAMETERS *
- *
- * Get the documents where the value
- of a $field is in a given $in array().
- *
- * @usage = $this->mongo_db->where_in('foo', array('bar', 'zoo', 'blah'))->get('foobar');
- */
- public function where_in($field = "", $in = array()) {
- $this->where_init($field);
- $this->wheres[$field]['$in'] = $in;
- return($this);
- }
- /**
- *
- * WHERE_NOT_IN PARAMETERS *
- *
- * Get the documents where the value of
- a $field is not in a given $in array().
- *
- * @usage = $this->mongo_db->where_not_in('foo', array('bar', 'zoo', 'blah'))->get('foobar');
- */
- public function where_not_in($field = "", $in = array()) {
- $this->where_init($field);
- $this->wheres[$field]['$nin'] = $in;
- return($this);
- }
- /**
- *
- * WHERE GREATER THAN PARAMETERS *
- *
- * Get the documents where the value of
- a $field is greater than $x
- *
- * @usage = $this->mongo_db->where_gt('foo', 20);
- */
- public function where_gt($field = "", $x) {
- $this->where_init($field);
- $this->wheres[$field]['$gt'] = $x;
- return($this);
- }
- /**
- *
- * WHERE GREATER THAN OR EQUAL TO PARAMETERS *
- *
- * Get the documents where the value of a $field is greater than or equal to $x
- *
- * @usage = $this->mongo_db->where_gte('foo', 20);
- */
- public function where_gte($field = "", $x) {
- $this->where_init($field);
- $this->wheres[$field]['$gte'] = $x;
- return($this);
- }
- /**
- *
- * WHERE LESS THAN PARAMETERS *
- *
- * Get the documents where the value of
- a $field is less than $x
- *
- * @usage = $this->mongo_db->where_lt('foo', 20);
- */
- public function where_lt($field = "", $x) {
- $this->where_init($field);
- $this->wheres[$field]['$lt'] = $x;
- return($this);
- }
- /**
- *
- * WHERE LESS THAN OR EQUAL TO PARAMETERS *
- *
- * Get the documents where the value of
- a $field is less than or equal to $x
- *
- * @usage = $this->mongo_db->where_lte('foo', 20);
- */
- public function where_lte($field = "", $x) {
- $this->where_init($field);
- $this->wheres[$field]['$lte'] = $x;
- return($this);
- }
- /**
- *
- * WHERE BETWEEN PARAMETERS *
- *
- * Get the documents where the value of
- a $field is between $x and $y
- *
- * @usage = $this->mongo_db->where_between('foo', 20, 30);
- */
- public function where_between($field = "", $x, $y) {
- $this->where_init($field);
- $this->wheres[$field]['$gte'] = $x;
- $this->wheres[$field]['$lte'] = $y;
- return($this);
- }
- /**
- *
- * WHERE BETWEEN AND NOT EQUAL TO PARAMETERS *
- *
- * Get the documents where the value of
- a $field is between but not equal to $x and $y
- *
- * @usage = $this->mongo_db->where_between_ne('foo', 20, 30);
- */
- public function where_between_ne($field = "", $x, $y) {
- $this->where_init($field);
- $this->wheres[$field]['$gt'] = $x;
- $this->wheres[$field]['$lt'] = $y;
- return($this);
- }
- /**
- *
- * WHERE NOT EQUAL TO PARAMETERS *
- *
- * Get the documents where the value of
- a $field is not equal to $x
- *
- * @usage = $this->mongo_db->where_between('foo', 20, 30);
- */
- public function where_ne($field = "", $x) {
- $this->where_init($field);
- $this->wheres[$field]['$ne'] = $x;
- return($this);
- }
- /**
- *
- * WHERE OR *
- *
- * Get the documents where the value of
- a $field is in one or more values
- *
- * @usage = $this->mongo_db->where_or('foo', array( 'foo', 'bar', 'blegh' );
- */
- public function where_or($field = "", $values) {
- $this->where_init($field);
- $this->wheres[$field]['$or'] = $values;
- return($this);
- }
- /**
- *
- * WHERE AND *
- *
- * Get the documents where the elements match
- the specified values *
- * @usage = $this->mongo_db->where_and( array ( 'foo' => 1, 'b' => 'someexample' );
- */
- public function where_and($elements_values = array()) {
- foreach ((array)$elements_values as $element => $val) {
- $this->wheres[$element] = $val;
- } return($this);
- }
- /**
- *
- * WHERE MOD *
- *
- * Get the documents where $field % $mod = $result *
- * @usage = $this->mongo_db->where_mod( 'foo', 10, 1 );
- */
- public function where_mod($field, $num, $result) {
- $this->where_init($field);
- $this->wheres[$field]['$mod'] = array($num, $result);
- return($this);
- }
- /** * * Where size * * * Get the documents where the size of a field is in a given $size int * * @usage : $this->mongo_db->where_size('foo', 1)->get('foobar'); */
- public function where_size($field = "", $size = "") {
- $this->_where_init($field);
- $this->wheres[$field]['$size'] = $size;
- return ($this);
- }
- /**
- *
- * LIKE PARAMETERS *
- *
- * Get the documents where the (string) value of
- a $field is like a value. The defaults
- * allow for a case-insensitive search. *
- * @param $flags
- * Allows for the typical regular expression flags:
- * i = case insensitive
- * m = multiline
- * x = can contain comments
- * l = locale
- * s = dotall, "." matches everything, including newlines
- * u = match unicode
- *
- * @param $enable_start_wildcard
- * If set to anything other than TRUE, a starting line character "^" will be prepended
- * to the search value, representing only searching for a value at the start of
- * a new line.
- * * @param $enable_end_wildcard
- * If set to anything other than TRUE, an ending line character "$" will be appended
- * to the search value, representing only searching for a value at the end of
- * a line.
- *
- * @usage = $this->mongo_db->like('foo', 'bar', 'im', FALSE, TRUE);
- */
- public function like($field = "", $value = "", $flags = "i", $enable_start_wildcard = TRUE, $enable_end_wildcard = TRUE) {
- $field = (string) trim($field);
- $this->where_init($field);
- $value = (string) trim($value);
- $value = quotemeta($value);
- if ($enable_start_wildcard !== TRUE) {
- $value = "^" . $value;
- } if ($enable_end_wildcard !== TRUE) {
- $value .= "$";
- } $regex = "/$value/$flags";
- $this->wheres[$field] = new MongoRegex($regex);
- return($this);
- }
- public function wheres($where){
- $this->wheres = $where;
- }
- /**
- *
- * ORDER BY PARAMETERS *
- *
- * Sort the documents based on the parameters passed.
- To set values to descending order,
- * you must pass values of either -1, FALSE,
- 'desc', or 'DESC', else they will be
- * set to 1 (ASC).
- *
- * @usage = $this->mongo_db->where_between('foo', 20, 30);
- */
- public function order_by($fields = array()) {
- if (!is_array($fields) || !count($fields)) return ;
- foreach ($fields as $col => $val) {
- if ($val == -1 || $val === FALSE || strtolower($val) == 'desc') {
- $this->sorts[$col] = -1;
- } else {
- $this->sorts[$col] = 1;
- }
- } return($this);
- }
- /**
- *
- * LIMIT DOCUMENTS *
- *
- * Limit the result set to $x number of documents *
- * @usage = $this->mongo_db->limit($x);
- */
- public function limit($x = 99999) {
- if ($x !== NULL && is_numeric($x) && $x >= 1) {
- $this->limit = (int) $x;
- } return($this);
- }
- /**
- *
- * OFFSET DOCUMENTS *
- *
- * Offset the result set to skip $x number of documents
- *
- * @usage = $this->mongo_db->offset($x);
- */
- public function offset($x = 0) {
- if ($x !== NULL && is_numeric($x) && $x >= 1) {
- $this->offset = (int) $x;
- } return($this);
- }
- /**
- *
- * GET_WHERE *
- *
- * Get the documents based upon the passed parameters *
- * @usage = $this->mongo_db->get_where('foo', array('bar' => 'something'));
- */
- public function get_where($collection = "", $where = array(), $limit = 99999, $orderby=array()) {
- if (is_array($orderby) || !emptyempty($orderby)) {
- $order_by = $this->order_by($order_by);
- }
- return($this->where($where)->limit($limit)->get($collection));
- }
- public function selectA($collection = "", $limit = 99999, $orderby=array()) {
- if(intval($limit)<1){
- $limit = 999999;
- }
- $order_by = $this->order_by($orderby);
- $re = $this->limit($limit)->get($collection);
- $this->clear();
- return (array)$re;
- }
- public function listinfo($collection = "", $orderby=array(), $page=1, $pagesize=12) {
- $page = max(intval($page), 1);
- $offset = $pagesize * ($page - 1);
- $pagesizes = $offset + $pagesize;
- $this->offset($offset);
- $order_by = $this->order_by($orderby);
- $re = $this->limit($pagesize)->get($collection);
- $this->limit(999999);
- $count = $this->count($collection);
- $this->pages = pages($count, $page, $pagesize);
- return (array)$re;
- }
- /**
- *
- * GET *
- *
- * Get the documents based upon the passed parameters *
- * @usage = $this->mongo_db->get('foo', array('bar' => 'something'));
- */
- public function get($collection = "") {
- if (emptyempty($collection)) {
- $this->error("In order to retreive documents from MongoDB, a collection name must be passed", 500);
- } $results = array();
- $documents = $this->db->{$collection}->find($this->wheres, $this->selects)->limit((int) $this->limit)->skip((int) $this->offset)->sort($this->sorts);
- $returns = array();
- foreach ($documents as $doc): $returns[] = $doc;
- endforeach;
- return($returns);
- }
- public function getMy($collection = "") {
- if (emptyempty($collection)) {
- $this->error("In order to retreive documents from MongoDB, a collection name must be passed", 500);
- } $results = array();
- $documents = $this->db->{$collection}->find($this->wheres, $this->selects)->limit((int) $this->limit)->skip((int) $this->offset)->sort($this->sorts);
- $returns = array();
- foreach ($documents as $doc): $returns[] = $doc;
- endforeach;
- $this -> clear();
- return($returns);
- }
- /**
- *
- * COUNT *
- *
- * Count the documents based upon the passed parameters *
- * @usage = $this->mongo_db->get('foo');
- */
- public function count($collection = "") {
- if (emptyempty($collection)) {
- $this->error("In order to retreive a count of documents from MongoDB, a collection name must be passed", 500);
- } $count = $this->db->{$collection}->find($this->wheres)->limit((int) $this->limit)->skip((int) $this->offset)->count();
- $this->clear();
- return($count);
- }
- /**
- *
- * INSERT *
- *
- * Insert a new document into the passed collection *
- * @usage = $this->mongo_db->insert('foo', $data = array());
- */
- public function insert($collection = "", $data = array(), $name='ID') {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection selected to insert into", 500);
- } if (count($data) == 0 || !is_array($data)) {
- $this->error("Nothing to insert into Mongo collection or insert is not an array", 500);
- } try {
- /**
- wxcity_base::load_sys_class('whtysqs','',0);
- $mongoseq_class = new whtysqs('creaseidsqs');
- $re = $mongoseq_class->query("?name=" . $collection . "&opt=put&data=1");
- **/
- $re = put_sqs('list_mongo_creaseidsqs','1');
- if(is_numeric($re)){
- $re++;
- $data[$name] = intval($re);
- }else{
- $data[$name] = intval(time());
- //die('mongosqs error');
- }
- $this->db->{$collection}->insert($data, array('fsync' => TRUE));
- $this->clear();
- return $data[$name];
- } catch (MongoCursorException $e) {
- $this->error("Insert of data into MongoDB failed: {$e->getMessage()}", 500);
- }
- }
- public function insertWithId($collection = "", $data = array()) {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection selected to insert into", 500);
- } if (count($data) == 0 || !is_array($data)) {
- $this->error("Nothing to insert into Mongo collection or insert is not an array", 500);
- } try {
- $this->db->{$collection}->insert($data, array('fsync' => TRUE));
- $this->clear();
- return 1;
- } catch (MongoCursorException $e) {
- $this->error("Insert of data into MongoDB failed: {$e->getMessage()}", 500);
- }
- }
- /**
- *
- * UPDATE *
- *
- * Update a document into the passed collection *
- * @usage = $this->mongo_db->update('foo', $data = array());
- */
- public function update($collection = "", $data = array()) {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection selected to update", 500);
- } if (count($data) == 0 || !is_array($data)) {
- $this->error("Nothing to update in Mongo collection or update is not an array", 500);
- } try {
- $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => TRUE, 'multiple' => FALSE));
- $this->clear();
- return(TRUE);
- } catch (MongoCursorException $e) {
- $this->error("Update of data into MongoDB failed: {$e->getMessage()}", 500);
- }
- }
- /**
- *
- * UPDATE_ALL *
- *
- * Insert a new document into the passed collection *
- * @usage = $this->mongo_db->update_all('foo', $data = array());
- */
- public function update_all($collection = "", $data = array()) {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection selected to update", 500);
- } if (count($data) == 0 || !is_array($data)) {
- $this->error("Nothing to update in Mongo collection or update is not an array", 500);
- } try {
- $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => TRUE, 'multiple' => TRUE));
- return(TRUE);
- } catch (MongoCursorException $e) {
- $this->error("Update of data into MongoDB failed: {$e->getMessage()}", 500);
- }
- }
- /**
- *
- * DELETE *
- *
- * delete document from the passed collection based upon certain criteria *
- * @usage = $this->mongo_db->delete('foo', $data = array());
- */
- public function delete($collection = "") {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection selected to delete from", 500);
- } try {
- $this->db->{$collection}->remove($this->wheres, array('fsync' => TRUE, 'justOne' => TRUE));
- $this->clear();
- return(TRUE);
- } catch (MongoCursorException $e) {
- $this->error("Delete of data into MongoDB failed: {$e->getMessage()}", 500);
- }
- }
- /**
- *
- * DELETE_ALL *
- *
- * Delete all documents from the passed collection based upon certain criteria
- *
- * @usage = $this->mongo_db->delete_all('foo', $data = array());
- */
- public function delete_all($collection = "") {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection selected to delete from", 500);
- } try {
- $this->db->{$collection}->remove($this->wheres, array('fsync' => TRUE, 'justOne' => FALSE));
- return(TRUE);
- } catch (MongoCursorException $e) {
- $this->error("Delete of data into MongoDB failed: {$e->getMessage()}", 500);
- }
- }
- /**
- *
- * ADD_INDEX *
- *
- * Ensure an index of the keys in a collection with optional parameters.
- To set values to descending order,
- * you must pass values of either -1, FALSE, 'desc', or 'DESC', else they will be
- * set to 1 (ASC). *
- * @usage = $this->mongo_db->add_index($collection, array('first_name' => 'ASC', 'last_name' => -1), array('unique' => TRUE));
- */
- public function add_index($collection = "", $keys = array(), $options = array()) {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection specified to add index to", 500);
- } if (emptyempty($keys) || !is_array($keys)) {
- $this->error("Index could not be created to MongoDB Collection because no keys were specified", 500);
- } foreach ($keys as $col => $val) {
- if ($val == -1 || $val === FALSE || strtolower($val) == 'desc') {
- $keys[$col] = -1;
- } else {
- $keys[$col] = 1;
- }
- } if ($this->db->{$collection}->ensureIndex($keys, $options) == TRUE) {
- $this->clear();
- return($this);
- } else {
- $this->error("An error occured when trying to add an index to MongoDB Collection", 500);
- }
- }
- /**
- *
- * REMOVE_INDEX *
- *
- * Remove an index of the keys in a collection.
- To set values to descending order,
- * you must pass values of either -1, FALSE, 'desc', or 'DESC', else they will be
- * set to 1 (ASC). *
- * @usage = $this->mongo_db->remove_index($collection, array('first_name' => 'ASC', 'last_name' => -1));
- */
- public function remove_index($collection = "", $keys = array()) {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection specified to remove index from", 500);
- } if (emptyempty($keys) || !is_array($keys)) {
- $this->error("Index could not be removed from MongoDB Collection because no keys were specified", 500);
- } if ($this->db->{$collection}->deleteIndex($keys, $options) == TRUE) {
- $this->clear();
- return($this);
- } else {
- $this->error("An error occured when trying to remove an index from MongoDB Collection", 500);
- }
- }
- /**
- *
- * REMOVE_ALL_INDEXES *
- *
- * Remove all indexes from a collection. *
- * @usage = $this->mongo_db->remove_all_index($collection);
- */
- public function remove_all_indexes($collection = "") {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection specified to remove all indexes from", 500);
- } $this->db->{$collection}->deleteIndexes();
- $this->clear();
- return($this);
- }
- /**
- *
- * LIST_INDEXES *
- *
- * Lists all indexes in a collection. *
- * @usage = $this->mongo_db->list_indexes($collection);
- */
- public function list_indexes($collection = "") {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection specified to remove all indexes from", 500);
- } return($this->db->{$collection}->getIndexInfo());
- }
- /**
- *
- * DROP COLLECTION *
- *
- * Removes the specified collection from the database.
- Be careful because this
- * can have some very large issues in production!
- */
- public function drop_collection($collection = "") {
- if (emptyempty($collection)) {
- $this->error("No Mongo collection specified to drop from database", 500);
- } $this->db->{$collection}->drop();
- return TRUE;
- }
- /**
- *
- * CLEAR *
- *
- * Resets the class variables to default settings
- */
- private function clear() {
- $this->selects = array();
- $this->wheres = array();
- $this->limit = NULL;
- $this->offset = NULL;
- $this->sorts = array();
- }
- /**
- *
- * WHERE INITIALIZER *
- *
- * Prepares parameters for insertion in $wheres array().
- */
- private function where_init($param) {
- if (!isset($this->wheres[$param])) {
- $this->wheres[$param] = array();
- }
- }
- public function error($str, $t) {
- echo $str;
- exit;
- }
- }
- ?>
使用范例:
- $table_name=trim(strtolower($this->table_name));
- $this->mongo_db->where($where);
- $order=!emptyempty($order)?array('AID'=>'DESC'):array('AID'=>'ASC');
- //升序降序
- $infos=$this->mongo_db->listinfo($table_name,$order,$page,$pagesize);
分享:Yii实现自动加载类地图的方法本文实例讲述了Yii实现自动加载类地图的方法。分享给大家供大家参考。具体如下: Yii继承的一个静态属性$classMap,可以用于Yii的自动加载类地图.数组中的键是类名,数组中的值是相应类文件的路径。
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PHP教程-php实现的mongodb操作类实例。