脚本宝典收集整理的这篇文章主要介绍了php操作MongoDB类实例，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。

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;">
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 (empty($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 ( ! empty($includs)) {
  foreach ($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 ( ! empty($wheres)) {
  foreach($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','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',30)->get('foobar');

*/

public function where_between_ne($field = '',$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 (empty($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 (empty($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 (empty($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 (empty($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 = "",'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 (empty($collection)) {

$this->log_error("No Mongo collection selected to delete from");

exit;

}

try {

$this->db->{$collection}->remove($this->wheres,'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 (empty($collection)) {

$this->log_error("No Mongo collection selected to delete from");

exit;

}

try {

$this->db->{$collection}->remove($this->wheres,'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 (empty($collection)) {

$this->log_error("No Mongo collection specified to add index to");

exit;

}

if (empty($keys) || ! is_array($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','last_name' => -1))

*/

public function remove_index($collection = "",$keys = array()) {

if (empty($collection)) {

$this->log_error("No Mongo collection specified to add index to");

exit;

}

if (empty($keys) || ! is_array($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','last_name' => -1))

*/

public function remove_all_index($collection = "",$keys = array()) {

if (empty($collection)) {

$this->log_error("No Mongo collection specified to add index to");

exit;

}

if (empty($keys) || ! is_array($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 (empty($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 (empty($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 (empty($this->host)) {

$this->log_error("The Host must be set to connect to MongoDB");

exit;

}

if (empty($this->dbname)) {

$this->log_error("The Database must be set to connect to MongoDB");

exit;

}

if ( ! empty($this->user) && ! empty($this->pass)) {

$connection_string .= "{$this->user}:{$this->pass}@";

}

if ( isset($this->port) && ! empty($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) && ! empty($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 */

脚本宝典总结

以上是脚本宝典为你收集整理的php操作MongoDB类实例全部内容，希望文章能够帮你解决php操作MongoDB类实例所遇到的问题。

如果觉得脚本宝典网站内容还不错，欢迎将脚本宝典推荐好友。

本图文内容来源于网友网络收集整理提供，作为学习参考使用，版权属于原作者。
如您有任何意见或建议可联系处理。小编QQ：384754419，请注明来意。