But using stored procedures has at least two of the most obvious advantages: speed and efficiency. Using stored procedures is obviously faster. In terms of efficiency, if an application needs to perform a series of SQL operations at one time, it needs to go back and forth between PHP and Oracle. It is better to put the application directly into the database to reduce the number of round trips and increase efficiency. But in Internet applications, speed is extremely important, so it is necessary to use stored procedures. I also used PHP to call stored procedures not long ago, and did the following example.
The code is as follows:
//建立一个test表 create table test ( id number(16) not null, name varchar2(30) not null, primary key (id) ); //插入一条数据 insert into test values (5, 'php_book'); //建立一个存储过程 create or replace procedure proc_test ( p_id in out number, p_name out varchar2 ) as begin select name into p_name from test where id = 5; end proc_test;
php code
The code is as follows:
<?php //建立数据库连接 $user = "scott"; //数据库用户名 $password = "tiger"; //密码 $conn_str = "tnsname"; //连接串(cstr : connection_string) $remote = true //是否远程连接 if ($remote) { $conn = ocilogon($user, $password, $conn_str); } else { $conn = ocilogon($user, $password); } //设定绑定 $id = 5; //准备用以绑定的php变量 id $name = ""; //准备用以绑定的php变量 name /** 调用存储过程的sql语句(sql_sp : sql_storeprocedure) * 语法: * begin 存储过程名([[:]参数]); end; * 加上冒号表示该参数是一个位置 **/ $sql_sp = "begin proc_test(:id, :name); end;"; //parse $stmt = ociparse($conn, $sql_sp); //执行绑定 ocibindbyname($stmt, ":id", $id, 16); //参数说明:绑定php变量$id到位置:id,并设定绑定长度16位 ocibindbyname($stmt, ":name", $name, 30); //execute ociexecute($stmt); //结果 echo "name is : $name "; ?>

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。


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