php操作MongoDB类实例
发布:smiling 来源: PHP粉丝网 添加日期:2021-05-28 20:32:52 浏览: 评论:0
这篇文章主要介绍了php操作MongoDB类的方法,实例分析了仿照CI实现的MongoDB类及其操作技巧,需要的朋友可以参考下。
本文实例讲述了php操作MongoDB类的方法,分享给大家供大家参考,具体如下:
1. MyMongo.php文件:
- <?php
- /**
- * 仿写CI的MongoDB
- * @author sparkHuang 2011-11-03
- *
- */
- class MyMongo {
- private $mongo_config = "mongo_config.php";
- private $connection;
- private $db;
- private $mongo_connect_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;
- public function __construct() {
- if ( ! class_exists('Mongo')) {
- $this->log_error("The MongoDB PECL extentiosn has not been installed or enabled.");
- exit;
- }
- $this->connection_string();
- $this->connect();
- }
- /**
- * 更改数据库
- *
- */
- public function switch_db($database = '') {
- if (emptyempty($database)) {
- $this->log_error("To switch MongoDB databases, a new database name must be specified");
- exit;
- }
- $this->dbname = $database;
- try {
- $this->db = $this->connection->{$this->dbname};
- return true;
- } catch(Exception $e) {
- $this->log_error("Unable to switch Mongo Databases: {$e->getMessage()}");
- exit;
- }
- }
- /**
- * 设置select字段
- *
- */
- public function select($includs = array(), $excludes = array()) {
- if ( ! is_array($includs)) {
- $includs = (array)$includs;
- }
- if ( ! is_array($excludes)) {
- $excludes = (array)$excludes;
- }
- if ( ! emptyempty($includs)) {
- foreach ($includs as $col) {
- $this->selects[$col] = 1;
- }
- } else {
- foreach ($excludes as $col) {
- $this->selects[$col] = 0;
- }
- }
- return($this);
- }
- /**
- * where条件查询判断
- *
- * @usage = $this->mongo_db->where(array('foo' => 'bar'))->get('foobar');
- *
- */
- public function where($wheres = array()) {
- if ( ! is_array($wheres)) {
- $wheres = (array)$wheres;
- }
- if ( ! emptyempty($wheres)) {
- foreach($wheres as $wh => $val) {
- $this->wheres[$wh] = $val;
- }
- }
- return($this);
- }
- /**
- * where ... in .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_in('foo', array('bar', 'zoo'))->get('foobar');
- *
- */
- public function where_in($field = '', $in = array()) {
- $this->where_init($field);
- $this->wheres[$field]['$in'] = $in;
- return($this);
- }
- /**
- * where ... not in .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_not_in('foo', array('bar', 'zoo'))->get('foobar');
- *
- */
- public function where_not_in($field = '', $in = array()) {
- $this->where_init($field);
- $this->wheres[$field]['$nin'] = $in;
- return($this);
- }
- /**
- * where ... $field > $x .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_gt('foo', 20)->get('foobar');
- *
- */
- public function where_gt($field = '', $x) {
- $this->where_init($field);
- $this->wheres[$field]['$gt'] = $x;
- return($this);
- }
- /**
- * where ... $field >= $x .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_gte('foo', 20)->get('foobar');
- *
- */
- public function where_gte($field = '', $x) {
- $this->where_init($field);
- $this->wheres[$field]['$gte'] = $x;
- return($this);
- }
- /**
- * where ... $field < $x .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_lt('foo', 20)->get('foobar');
- *
- */
- public function where_lt($field = '', $x) {
- $this->where_init($field);
- $this->wheres[$field]['$lt'] = $x;
- return($this);
- }
- /**
- * where ... $field <= $x .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_lte('foo', 20)->get('foobar');
- *
- */
- public function where_lte($field = '', $x) {
- $this->where_init($field);
- $this->wheres[$field]['$lte'] = $x;
- return($this);
- }
- /**
- * where ... $field >= $x AND $field <= $y .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_between('foo', 20, 30)->get('foobar');
- *
- */
- public function where_between($field = '', $x, $y) {
- $this->where_init($field);
- $this->wheres[$field]['$gte'] = $x;
- $this->wheres[$field]['$lte'] = $y;
- return($this);
- }
- /**
- * where ... $field > $x AND $field < $y .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_between_ne('foo', 20, 30)->get('foobar');
- *
- */
- public function where_between_ne($field = '', $x, $y) {
- $this->where_init($field);
- $this->wheres[$field]['$gt'] = $x;
- $this->wheres[$field]['$lt'] = $y;
- return($this);
- }
- /**
- * where ... $field <> $x .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_ne('foo', 20)->get('foobar');
- *
- */
- public function where_ne($field = '', $x) {
- $this->where_init($field);
- $this->wheres[$field]['$ne'] = $x;
- return($this);
- }
- /**
- * where ... or .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_or('foo', array('foo', 'bar'))->get('foobar');
- *
- */
- public function where_or($field = '', $values) {
- $this->where_init($field);
- $this->wheres[$field]['$or'] = $values;
- return($this);
- }
- /**
- * where ... and .. 条件查询判断
- *
- * @usage = $this->mongo_db->where_and( array ( 'foo' => 1, 'b' => 'someexample' );
- */
- public function where_and( $elements_values = array() ) {
- foreach ( $elements_values as $element => $val ) {
- $this->wheres[$element] = $val;
- }
- return($this);
- }
- /**
- * where $field % $num = $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条件查询(PHP中定义MongoRegex类实现)
- *
- * @usage : $this->mongo_db->like('foo', 'bar', 'im', false, false)->get();
- */
- public function like($field = "", $value = "", $flags = "i", $enable_start_wildcard = true, $enable_end_wildcard = true) {
- $field = (string)$field;
- $this->where_init($field);
- $value = (string)$value;
- $value = quotmeta($value);
- if (true !== $enable_start_wildcard) {
- $value = "^".$value;
- }
- if (true !== $enable_end_wildcard) {
- $value .= "$";
- }
- $regex = "/$value/$flags";
- $this->wheres[$field] = new MongoRegex($regex);
- return($this);
- }
- /**
- * order排序( 1 => ASC, -1 => DESC)
- *
- * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->order_by(array("age" => 1));
- */
- public function order_by($fields = array()) {
- 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
- *
- * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->limit(10);
- */
- public function limit($x = 999999) {
- if ($x !== NULL && is_numeric($x) && $x >= 1) {
- $this->limit = (int)$x;
- }
- return($this);
- }
- /**
- * offset
- *
- * @usage: $this->mongo_db->get_where('foo', array('name' => 'tom'))->offset(10);
- */
- public function offset($x = 0) {
- if($x !== NULL && is_numeric($x) && $x >= 1) {
- $this->offset = (int) $x;
- }
- return($this);
- }
- /**
- * get_where
- *
- * @usage: $this->mongo_db->get_where('foo', array('bar' => 'something'));
- */
- public function get_where($collection = "", $where = array(), $limit = 999999) {
- return($this->where($where)->limit($limit)->get($collection));
- }
- /**
- * get
- *
- * @usage: $this->mongo_db->where(array('name' => 'tom'))->get('foo');
- */
- public function get($collection) {
- if (emptyempty($collection)) {
- $this->log_error("In order to retreive documents from MongoDB, a collection name must be passed");
- exit;
- }
- $results = array();
- $results = $this->db->{$collection}->find($this->wheres, $this->selects)->limit((int)$this->limit)->skip((int)$this->offset)->sort($this->sorts);
- $returns = array();
- foreach($results as $result) {
- $returns[] = $result;
- }
- $this->clear();
- return($returns);
- }
- /**
- * count
- *
- * @usage: $this->db->get_where('foo', array('name' => 'tom'))->count('foo');
- */
- public function count($collection) {
- if (emptyempty($collection)) {
- $this->log_error("In order to retreive documents from MongoDB, a collection name must be passed");
- exit;
- }
- $count = $this->db->{$collection}->find($this->wheres)->limit((int)$this->limit)->skip((int)$this->offset)->count();
- $this->clear();
- return($count);
- }
- /**
- * insert
- *
- * @usage: $this->mongo_db->insert('foo', array('name' => 'tom'));
- */
- public function insert($collection = "", $data = array()) {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection selected to delete from");
- exit;
- }
- if (count($data) == 0 || ! is_array($data)) {
- $this->log_error("Nothing to insert into Mongo collection or insert is not an array");
- exit;
- }
- try {
- $this->db->{$collection}->insert($data, array('fsync' => true));
- if (isset($data['_id'])) {
- return($data['_id']);
- } else {
- return(false);
- }
- } catch(MongoCursorException $e) {
- $this->log_error("Insert of data into MongoDB failed: {$e->getMessage()}");
- exit;
- }
- }
- /**
- * update : 利用MongoDB的 $set 实现
- *
- * @usage : $this->mongo_db->where(array('name' => 'tom'))->update('foo', array('age' => 24))
- */
- public function update($collection = "", $data = array()) {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection selected to delete from");
- exit;
- }
- if (count($data) == 0 || ! is_array($data)) {
- $this->log_error("Nothing to update in Mongo collection or update is not an array");
- exit;
- }
- try {
- $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => true, 'multiple' => false)); //注意: multiple为false
- return(true);
- } catch(MongoCursorException $e) {
- $this->log_error("Update of data into MongoDB failed: {$e->getMessage()}");
- exit;
- }
- }
- /**
- * update_all : 利用MongoDB的 $set 实现
- *
- * @usage : $this->mongo_db->where(array('name' => 'tom'))->update_all('foo', array('age' => 24));
- */
- public function update_all($collection = "", $data = array()) {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection selected to delete from");
- exit;
- }
- if (count($data) == 0 || ! is_array($data)) {
- $this->log_error("Nothing to update in Mongo collection or update is not an array");
- exit;
- }
- try {
- $this->db->{$collection}->update($this->wheres, array('$set' => $data), array('fsync' => true, 'multiple' => true)); //注意: multiple为true
- return(true);
- } catch(MongoCursorException $e) {
- $this->log_error("Update of data into MongoDB failed: {$e->getMessage()}");
- exit;
- }
- }
- /**
- * delete
- *
- * @usage : $this->mongo_db->where(array('name' => 'tom'))->delete('foo');
- */
- public function delete($collection = "") {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection selected to delete from");
- exit;
- }
- try {
- $this->db->{$collection}->remove($this->wheres, array('fsync' => true, 'justOne' => true)); //注意justOne为true;
- } catch(MongoCursorException $e) {
- $this->log_error("Delete of data into MongoDB failed: {$e->getMessage()}");
- exit;
- }
- }
- /**
- * delete_all
- *
- * @usage : $this->mongo_db->where(array('name' => 'tom'))->delete_all('foo');
- */
- public function delete_all($collection = "") {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection selected to delete from");
- exit;
- }
- try {
- $this->db->{$collection}->remove($this->wheres, array('fsync' => true, 'justOne' => false)); //注意justOne为false;
- } catch(MongoCursorException $e) {
- $this->log_error("Delete of data into MongoDB failed: {$e->getMessage()}");
- exit;
- }
- }
- /**
- * add_index
- *
- * @usage : $this->mongo_db->add_index('foo', array('first_name' => 'ASC', 'last_name' => -1), array('unique' => true)));
- */
- public function add_index($collection, $keys = array(), $options = array()) {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection specified to add index to");
- exit;
- }
- if (emptyempty($keys) || ! is_array($keys)) {
- $this->log_error("Index could not be created to MongoDB Collection because no keys were specified");
- exit;
- }
- foreach($keys as $col => $val) {
- if ($val == -1 || $val == false || strtolower($val) == 'desc') {
- $keys[$col] = -1;
- } else {
- $keys[$col] = 1;
- }
- }
- //在此没有对$options数组的有效性进行验证
- if (true == $this->db->{$collection}->ensureIndex($keys, $options)) {
- $this->clear();
- return($this);
- } else {
- $this->log_error("An error occured when trying to add an index to MongoDB Collection");
- exit;
- }
- }
- /**
- * remove_index
- *
- * @usage : $this->mongo_db->remove_index('foo', array('first_name' => 'ASC', 'last_name' => -1))
- */
- public function remove_index($collection = "", $keys = array()) {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection specified to add index to");
- exit;
- }
- if (emptyempty($keys) || ! is_array($keys)) {
- $this->log_error("Index could not be created to MongoDB Collection because no keys were specified");
- exit;
- }
- if ($this->db->{$collection}->deleteIndex($keys)) {
- $this->clear();
- return($this);
- } else {
- $this->log_error("An error occured when trying to add an index to MongoDB Collection");
- exit;
- }
- }
- /**
- * remove_all_index
- *
- * @usage : $this->mongo_db->remove_all_index('foo', array('first_name' => 'ASC', 'last_name' => -1))
- */
- public function remove_all_index($collection = "", $keys = array()) {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection specified to add index to");
- exit;
- }
- if (emptyempty($keys) || ! is_array($keys)) {
- $this->log_error("Index could not be created to MongoDB Collection because no keys were specified");
- exit;
- }
- if ($this->db->{$collection}->deleteIndexes($keys)) {
- $this->clear();
- return($this);
- } else {
- $this->log_error("An error occured when trying to add an index to MongoDB Collection");
- exit;
- }
- }
- /**
- * list_indexes
- *
- * @usage : $this->mongo_db->list_indexes('foo');
- */
- public function list_indexes($collection = "") {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection specified to add index to");
- exit;
- }
- return($this->db->{$collection}->getIndexInfo());
- }
- /**
- * drop_collection
- *
- * @usage : $this->mongo_db->drop_collection('foo');
- */
- public function drop_collection($collection = "") {
- if (emptyempty($collection)) {
- $this->log_error("No Mongo collection specified to add index to");
- exit;
- }
- $this->db->{$collection}->drop();
- return(true);
- }
- /**
- * 生成连接MongoDB 参数字符串
- *
- */
- private function connection_string() {
- include_once($this->mongo_config);
- $this->host = trim($config['host']);
- $this->port = trim($config['port']);
- $this->user = trim($config['user']);
- $this->pass = trim($config['pass']);
- $this->dbname = trim($config['dbname']);
- $this->persist = trim($config['persist']);
- $this->persist_key = trim($config['persist_key']);
- $connection_string = "mongodb://";
- if (emptyempty($this->host)) {
- $this->log_error("The Host must be set to connect to MongoDB");
- exit;
- }
- if (emptyempty($this->dbname)) {
- $this->log_error("The Database must be set to connect to MongoDB");
- exit;
- }
- if ( ! emptyempty($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);
- }
- /**
- * 连接MongoDB 获取数据库操作句柄
- *
- */
- private function connect() {
- $options = array();
- if (true === $this->persist) {
- $options['persist'] = isset($this->persist_key) && ! emptyempty($this->persist_key) ? $this->persist_key : "ci_mongo_persist";
- }
- try {
- $this->connection = new Mongo($this->connection_string, $options);
- $this->db = $this->connection->{$this->dbname};
- return ($this);
- } catch (MongoConnectionException $e) {
- $this->log_error("Unable to connect to MongoDB: {$e->getMessage()}");
- }
- }
- /**
- * 初始化清理部分成员变量
- *
- */
- private function clear() {
- $this->selects = array();
- $this->wheres = array();
- $this->limit = NULL;
- $this->offset = NULL;
- $this->sorts = array();
- }
- /**
- * 依据字段名初始化处理$wheres数组
- *
- */
- private function where_init($param) {
- if ( ! isset($this->wheres[$param])) {
- $this->wheres[$param] = array();
- }
- }
- /**
- * 错误记录
- *
- */
- private function log_error($msg) {
- $msg = "[Date: ".date("Y-m-i H:i:s")."] ".$msg;
- @file_put_contents("./error.log", print_r($msg."\n", true), FILE_APPEND);
- }
- }
- /* End of MyMongo.php */
2. mongo_config.php配置文件:
- <?php
- $config["host"] = "localhost";
- $config["user"] = "";
- $config["pass"] = "";
- $config["port"] = 27017;
- $config["dbname"] = "test";
- $config['persist'] = TRUE;
- $config['persist_key'] = 'ci_mongo_persist';
- /*End of mongo_config.php*/
3. MyMongoDemo.php文件:
- <?php
- include_once("MyMongo.php");
- $conn = new MyMongo();
- //删除所有记录
- $conn->delete_all("blog");
- //插入第一条记录
- $value = array("name" => "小明", "age" => 25, "addr" => array("country" => "中国", "province" => "广西", "city" => "桂林"));
- $conn->insert("blog", $value);
- var_dump($conn->select(array("name", "age"))->get("blog"));
- var_dump($conn->get("blog"));
- /* End of MyMongoDemo.php */
Tags: php操作MongoDB
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