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    php實(shí)現(xiàn)的mongodb操作類(lèi)實(shí)例
    
            
    來(lái)源：易賢網(wǎng)  閱讀：1910 次  日期：2015-04-07 14:35:21 
    
            
    溫馨提示：易賢網(wǎng)小編為您整理了“php實(shí)現(xiàn)的mongodb操作類(lèi)實(shí)例”,方便廣大網(wǎng)友查閱！
    
            
    
                        
    
            
    
             
    本文實(shí)例講述了php實(shí)現(xiàn)的mongodb操作類(lèi)。分享給大家供大家參考。具體如下：
    <?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;
    }
    } 
    ?>
    

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