本文实例分析了php调用mysql存储过程的方法。分享给大家供大家参考。具体分析如下:
Mysql存储过程创建语法,代码如下:
CREATE PROCEDURE和CREATE FUNCTION :
CREATE PROCEDURE sp_name ([proc_parameter[,...]]) [characteristic ...] routine_body CREATE FUNCTION sp_name ([func_parameter[,...]]) RETURNS type [characteristic ...] routine_body proc_parameter: [ IN | OUT | INOUT ] param_name type func_parameter: param_name type type: Any valid MySQL data type characteristic: LANGUAGE SQL | [NOT] DETERMINISTIC | { CONTAINS SQL | NO SQL | READS SQL DATA | MODIFIES SQL DATA } | SQL SECURITY { DEFINER | INVOKER } | COMMENT 'string' routine_body: Valid SQL procedure statement or statements
Create procedure sp_Name ([proc_parameter ]) routine_body
这里的参数类型可以是 IN OUT INOUTT,意思和单词的意思是一样的,IN 表示是传进来的参数,OUT 是表示传出去的参数,INOUT 是表示传进来但最终传回的参数,代码如下:
Create functionsp_Name ([func_parameter ]) Returns type Routine_body
Returns type 指定了返回的类型,这里给定的类型与返回值的类型要是一样的,否则会报错,下面是一个简单的例子,代码如下:
mysql> delimiter // mysql> create procedure g -> begin -> select version() i -> end -> // Query OK, 0 rows affected mysql> call getversion(@a -> // Query OK, 0 rows affected mysql> select @a; -> // +---------------------+ | @a | +---------------------+ | 5.0.45-community-nt | +---------------------+ 1 row in set (0.05 sec)
Drop table if exists user; Create table user( Id int unsigned not null auto_increment, Name varchar(20) not null, Pwd char(32) not null, Primary key(Id) );
Delimiter // Create procedure insertuser(in username varchar(20),in userpwd varchar(32)) Begin Insert into welefen.user(Name,Pwd) values (username,md5(userpwd)); End //
Delimiter // Create procedure validateuser(in username varchar(20),out param1) Begin Select Pwd into param1 from welefen.user where Name=username; End //
Delimiter // Create procedure modifyPwd(in username varchar(20),in userpwd varchar(32)) Begin Update welefen.user set Pwd=md5(userpwd) where Name=username; End //
Delimiter // Create procedure deleteuser(in username varchar(20)) Begin delete from welefen.user where Name=username; End //
<?php if (!mysql_connect("localhost","root","welefen")){ echo "连接数据库失败"; } if (!mysql_select_db("welefen")){ echo "选择数据库表失败<br>"; } $insert_user=array("welefen","welefen");//这里的welefen分别为用户名、密码 if (mysql_query("call insertuser('$insert_user[0]','$insert_user[1]')")){ echo "添加用户$insert_user[0]成功<br>"; }else { echo "添加用户$insert_user[0]失败<br>"; } $validate_user=array("welefen","welefen");//这里的welefen分别为用户名、密码 mysql_query("call validateuser('$validate_user[0]',@a)"); $Pwd=mysql_query("select @a"); $result=mysql_fetch_array($Pwd); if ($result[0]==md5($validate_user[1])){ echo "用户$validate_user[0]验证正确<br>"; }else { echo "用户$validate_user[0]验证错误<br>"; } $modify_Pwd=array("welefen","weilefeng"); //welefen为用户名weilefeng为新密码 if (mysql_query("call modifyPwd('$modify_Pwd[0]','$modify_Pwd[1]')")){ echo "用户$modigy_Pwd[0]的密码修改成功<br>"; }else { echo "用户$modigy_Pwd[0]的密码修改失败<br>"; } $delete_user=array("welefen"); //welefen为用户名 if (mysql_query("call deleteuser('$delete_user[0]')")){ echo "用户$delete_user[0]删除成功<br>"; }else { echo "用户$delete_user[0]删除失败<br>"; } ?>
希望本文所述对大家的php程序设计有所帮助。