[PHP]实用函数7
//打开一个到MySQL服务器的连接。成功返回连接符,失败时返回false
int mysql_connect([string server[,string username[,string password]]])
//打开一个到MySQL服务器的持久性连接
int mysql_pconnect([string server[,string username[,string[password]]])
//关闭一个MySQL连接。不影响持久性连接
bool mysql_close([resource link_identifier])
//选择一个MySQL数据库
bool mysql_select_db(string database_name[,int link_identifier])
//创建一个MySQL数据库
bool mysql_create_db(string database name[,int link_identifier])
//删除一个MySQL数据库
bool mysql_drop_db(string database_name[,int link_identifier])
//向MySQL发送一个SQL查询
int mysql_querry(string query[,int link_identifier])
//选择一个MySQL数据库并向MySQL发送一个SQL查询
int mysql_db_query(string database,string query[,int link_identifier])
//列出一个MySQL服务器上可用的数据库
int mysql_list_dbs(string database[,int link_identifier])
//列出一个MySQL数据库中的表
int mysql_list_tables(string database[,int link_identifier])
//检索MySQL数据库有关表字段定义的信息,所返回的结果指针可以为mysql_field_flags()、mysql_field_len()、mysql_field_name()和mysql_field_type()函数使用
int mysql_list_fields(string database_name,string table_name[,int link_identifier])
//返回前一个MySQL操作的错误信息
string mysql_error([int link_identifier])
//返回前一个MySQL操作的错误号
int mysql_errno([int lind_identifier])
//获得受到前一个MySQL操作影响的行数
int mysql_affected_rows([int link_identifier])
//获得前一个Insert操作生成的主键值,该值由该表的auto_increment的字段产生
int mysql_insert_id([int link_identifier])
//可用来获得查询结果数据记录中的某个数据项
mixed mysql_result(resource result,int row[,mixed field])
//获得结果集中的记录数
int mysql_num_rows(int result)
//获得结果集中的字段数
int mysql_num_fields(int result)
//获得以枚举数组方式表示的结果记录
array mysql_fetch_row(int result)
//按对象方式获得一个结果记录
object mysql_fetch_object(int result,int[result_type]
//用来将查询结果result拆解到数组变量中
array mysql_fetch_array(int result[,int result_type])
//移动结果记录集中的内部指针。如果给出一个无效记录,则会产生错误
int mysql_data_seek(int result_identifier,int row_number)
//将上一个mysql_fetch_row()所访问的记录各字段长度以数组形式返回
array mysql_fetch_lengths(int result)
//从结果中获得字段信息并作为一个对象返回
object mysql_fetch_field(int result,int[field_offset])
//把结果指针设置为一个具体的字段偏移量。下次调用mysql_fetch()时将使用该偏移量
int mysql_field_seek(int result,int field_offset)
//获得result中指定字段名
string mysql_field_name(int result,int field_index)
//获得指定字段名
string mysql_field_table(int result,int field_offset)
//返回指定字段的长度
int mysql_field_len(int result,int field_offset)
//获得result中指定字段的类型
string mysql_field_type(int result_offset)
//获得与result中指定字段关联的标志,传回的标志可能是:not_null、primary_key、unique_key、multiple_key、blob、unsigned、zerofill、binary、enum、auto_increment、timestamp
string mysql_field_flags(int result,int field_offset)
//释放result占用的内存
bool mysql_free_result(int result)

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