smarty模板原理和增删改查例题

时间：2022-01-21 16:36:55

Smarty模板：（前后端分离)
原理:核心是一个类,先修改配置文件，在使用的时候引入配置文件即可,（init.inc.php）
$smarty->assign("ceshi",$a);//注册变量到模板
$smarty->display("test.html");//前台显示

一、登录:login.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>无标题文档</title>

</head>

<body>

<form action="loginchuli.php" method="post">

<div>用户名：<input type="text" name="uid" /></div>

<div>密码：<input type="password" name="pwd" /></div>

<div><input type="submit" value="登录"/></div>

</form>

</body>

</html>

登录:login.php

<?php

include("../init.inc.php");        //把smarty模板引进

$smarty->display("login.html");//在login.html页面写出登录界面,在login.php里执行

登录处理:loginchuli.php

<?php    //login登录处理界面

session_start();

$uid = $_POST["uid"];

$pwd = $_POST["pwd"];

include("../DBDA.php");

$db = new DBDA();

$sql = "select pass from login where username = '{$uid}'";

$mm = $db->StrQuery($sql);

if($pwd != "" && $pwd==$mm)

{

    $_SESSION["uid"] = $uid;

    header("location:main.php");

}

else

{

    header("location:login.php");

}

二、主页面:main.html

#top{ width:100%; height:50px}

#name{ float:right; height:50px; width:100px; text-align:center; line-height:50px; vertical-align:middle}

</style>

</head>

<body>

<div id="top">

    <div id="name"><{$name}></div>

</div>

<div>人员信息表</div>

<div>

    <table width="100%" border="1" cellpadding="0" cellspacing="0">

        <tr>

        <td>代号</td>

        <td>姓名</td>

        <td>性别</td>

        <td>民族</td>

        <td>生日</td>

        <td>操作</td>

        </tr>

        <{foreach $info as $v}>

        <tr>

        <td><{$v[0]}></td>

        <td><{$v[1]}></td>

        <td><{$v[2]|sex}></td>    <!--把之前的sex=0,1改为男,女,方法->modifier.sex.php(自写小插件)-->

        <td><{$v[3]|nation}></td>    <!--把之前的nation=n001,n002改为汉族,回族,方法->modifier.nation.php(自写小插件)-->

        <td><{$v[4]}></td>

        <td><a href="shanchu.php?code=<{$v[0]}>">删除</a><a href="xiugai.php?id=<{$v[0]}>">修改</a></td><!--给删除,修改传键值,此键值为主键值-->

        </tr>

        <{/foreach}>

    </table>

</div>

</body>

所用组件：

modifier.sex.php

<?php

function smarty_modifier_sex($sex)

{

    return $sex?"男":"女";    　　//ture返回'男',false返回'女'

}

modifier.nation.php

<?php

function smarty_modifier_nation($nation)

{

    $db = new MySQLi("localhost","root","2786802","text_zuoye");    //引入DBDA的类不可用,只能写入最原始方法来调用数据库

    $sql = "select name from nation where code = '{$nation}'";

    $result = $db->query($sql);

    $attr = $result->fetch_row();

    return $attr[0];

}

主页面:main.php

<?php

session_start();

include("../init.inc.php");

include("../DBDA.php");

$db = new DBDA();

if(empty($_SESSION["uid"]))    //判断session是否为空,不为空取值,为空跳登录页面

{

    header("location:login.php");

    exit;

}

$uid = $_SESSION["uid"];

$sql = "select name from login where username = '{$uid}'";

$name = $db->StrQuery($sql);

$smarty->assign("name",$name);    //smarty取到登录的uid,到main.html取出显示

$sqli = "select * from info ";

$attr = $db->Query($sqli);

$smarty->assign("info",$attr);    //smarty取到info的数据放到数组,到main.html取出显示

$smarty->display("main.html");    //在本页面显示main.html的页面数据

三、修改页面:xiugai.html

<body>

<form action="gai.php" method="post">

<div><input name="code" type="hidden" value="<{$info[0]}>" /></div>

<div>姓名：<input name="name" type="text" value="<{$info[1]}>" /></div>

<div>性别:

    <input type="radio" name="sex" value="1" <{$info[2]|cksex}> />男 　　 <!--改为单选按钮,方法->modifier.ck1/ck.php(自写小插件)-->

    <input type="radio" name="sex" value="0" <{$info[2]|cksex1}> />女

</div>

<div>民族:

<!--民族改为下拉菜单显示,在xiugai.php页面查询出nation表的name,通过$nation接收,并且根据主键值通过循环给其所属的民族赋属性checked="checked",默认选中;-->

    <select name="nation">

        <{foreach $nation as $v}>

            <{if $v[0]==$info[3]}>

            <option selected="selected" value="<{$v[0]}>"><{$v[1]}></option>

            <{else}>

            <option value="<{$v[0]}>"><{$v[1]}></option>

            <{/if}>

        <{/foreach}>

    </select>

</div>

<div>生日:<input name="birthday" type="text" value="<{$info[4]}>" /></div>

<input type="submit" value="修改" />

</form>

</body>

modifier_cksex.php

<?php

function smarty_modifier_cksex($sex)

{

    return $sex?"checked='checked'":"";    //如果为ture,checked='checked'

}

modifier_cksex1.php

<?php

function smarty_modifier_cksex1($sex)

{

    return $sex?"":"checked='checked'";    //如果为false,checked='checked'

}

修改页面:xiugai.php

<?php

$id = $_GET["id"];

include("../DBDA.php");

$db = new DBDA();

$sql = "select * from info where code='{$id}'";

$attr = $db->Query($sql);

$sqlnation = "select * from nation";

$attrn = $db->Query($sqlnation);

include("../init.inc.php");        　　//执行修改要显示页面,把smarty模板引入

$smarty->assign("info",$attr[0]);    //$attr[0]赋给info,在html页面$info提取

$smarty->assign("nation",$attrn);    //xiugai.html页面民族改下拉菜单时用

$smarty->display("xiugai.html");    //把xiugai.html里面的内容拿过来在本页面显示

删除页面:shanchu.php

<?php

include("../DBDA.php");

$db = new DBDA();

$code = $_GET["code"];

$sql = "delete from info where code='{$code}'";

$db->Query($sql,0);

header("location:main.php");

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