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本文实例讲述了PHP操作mongodb封装类与用法。分享给大家供大家参考,具体如下:
近来学习了mongodb,刚好是做PHP开发的,随便写了PHP操作mongodb的封装类.
PHP;"> $db; } public static function getInstance(){ if(!(self::$conn instanceof self)){ self::$conn = new self(); } //return self::$conn->mydb; return self::$conn; } PRivate function __clone(){ trigger_error('Clone is not Allowed'); }//禁止克隆 //创建索引 public function ensureindex($table,$index,$index_param=array()) { $index_param['safe'] = 1; try { self::$mon->$table->ensureIndex($index,$index_param); return true; } catch (MongoCursorException $e) { self::$error = $e->getMessage(); return false; } } //添加 public function insert($table,$arr){ try { self::$mon->$table->insert($arr,array('w'=>true)); return true; } catch (MongoCursorException $e) { self::$error = $e->getMessage(); return false; } } //更新 public function update($table,$condITion,$new_arr,$options=array()) { $options['w'] = 1; if (!isset($options['multiple'])) { $options['multiple'] = 0; } try { self::$mon->$table->update($condition,$options); return true; } catch (MongoCursorException $e) { self::$error = $e->getMessage(); return false; } } //删除 public function remove($table,$options=array()) { $options['w'] = 1; try { self::$mon->$table->remove($condition,$options); return true; } catch (MongoCursorException $e) { self::$error = $e->getMessage(); return false; } } //查找 public function find($table,$query_condition,$result_condition=array(),$fields=array()) { $cursor = self::$mon->$table->find($query_condition,$fields); if (!empty($result_condition['start'])) { $cursor->skip($result_condition['start']); } if (!empty($result_condition['limit'])) { $cursor->limit($result_condition['limit']); } if (!empty($result_condition['sort'])) { $cursor->sort($result_condition['sort']); } $result = array(); try { while ($cursor->hasNext()) { $result[] = $cursor->getNext(); } } catch (MongoCursorTimeoutException $e) { self::$error = $e->getMessage(); return false; } return $result; } //查找一条记录 public function findOne($table,$fields=array()) { return self::$mon->$table->findOne($condition,$fields); } //返回表的记录数 public function count($table) { return self::$mon->$table->count(); } //返回错误信息 public function getError() { return self::$error; } }@H_419_5@
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