PDO->beginTransaction() — 标明回滚起始点
PDO->commit() — 标明回滚结束点，并执行SQL
PDO->__construct() — 建立一个PDO链接数据库的实例
PDO->errorCode() — 获取错误码
PDO->errorInfo() — 获取错误的信息
PDO->exec() — 处理一条SQL语句，并返回所影响的条目数
PDO->getAttribute() — 获取一个“数据库连接对象”的属性
PDO->getAvailableDrivers() — 获取有效的PDO驱动器名称
PDO->lastInsertId() — 获取写入的最后一条数据的主键值
PDO->prepare() — 生成一个“查询对象”
PDO->query() — 处理一条SQL语句，并返回一个“PDOStatement”
PDO->quote() — 为某个SQL中的字符串添加引号
PDO->rollBack() — 执行回滚
PDO->setAttribute() — 为一个“数据库连接对象”设定属性
PDOStatement->bindColumn() — Bind a column to a PHP variable
PDOStatement->bindParam() — Binds a parameter to the specified variable name
PDOStatement->bindValue() — Binds a value to a parameter
PDOStatement->closeCursor() — Closes the cursor, enabling the statement to be executed again.
PDOStatement->columnCount() — 返回数据集列的数量对应:num_fields
PDOStatement->errorCode() — Fetch the SQLSTATE associated with the last operation on the statement handle
PDOStatement->errorInfo() — Fetch extended error information associated with the last operation on the statement handle
PDOStatement->execute() — Executes a prepared statement
PDOStatement->fetch() — 返回结果集的下一条.
PDOStatement->fetchAll() — 返回一个数组包含着全部的值
PDOStatement->fetchColumn() — Returns a single column from the next row of a result set
PDOStatement->fetchObject() — Fetches the next row and returns it as an object.
PDOStatement->getAttribute() — Retrieve a statement attribute
PDOStatement->getColumnMeta() — Returns metadata for a column in a result set
PDOStatement->nextRowset() — Advances to the next rowset in a multi-rowset statement handle
PDOStatement->rowCount() — 返回一个数字显示在执行SQL操作后受影响的行数
PDOStatement->setAttribute() — Set a statement attribute
PDOStatement->setFetchMode() — 返回数据库表属性Set the default fetch mode for this statement
原文：http://www.cnblogs.com/woodk/p/5115268.html