php操作mongodb类实例 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：
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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 = $this->mongo_db->where_not_in('foo', array('bar', 'zoo'))->get('foobar');
*
*/
public function where_not_in($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
*
* @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
*
* @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
*
* @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
*
* @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 (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 = , $data = array()) {
if (empty($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' => 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, 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 (empty($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(), $options = array()) {
if (empty($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 : $this->mongo_db->remove_index('foo', array('first_name' => 'asc', 'last_name' => -1))
*/
public function remove_index($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 : $this->mongo_db->remove_all_index('foo', array('first_name' => 'asc', 'last_name' => -1))
*/
public function remove_all_index($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 */
2. mongo_config.php配置文件：
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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 */
希望本文所述对大家的php程序设计有所帮助。
http://www.bkjia.com/phpjc/1017840.htmlwww.bkjia.comtruehttp://www.bkjia.com/phpjc/1017840.htmltecharticlephp操作mongodb类实例 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： ? 1 2 3 4 5 6 7 8 9 10 11 12...