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关于js与php互相传值的介绍_PHP

Jun 01, 2016 pm 12:05 PM
js php

JS是前台的语言,PHP是后台的语言,初学时会经常出现前后台分不清的情况(我当初就是这样的,现在有时也在犯),我当初的想法是就把前后台当成两个岛,他们是无法跨越的,HTML就像一座桥,当你想要把一座岛上的变量传到另一个岛上,只有借助于这座桥。
我来做个小小的总结吧:
1:HTML中的值如何传到JS,下面假设是文件1.php
复制代码 代码如下:

            


               

                     name:
                    rename:
                   
              

             
        

JS假如想取文本框中用户输入的name值,这样写
复制代码 代码如下:


这样的话在有调用JS get()时就会弹出警示框,里面的内容就是name的值。
2:假如说JS中的这个取到的name值要传回rename的文本框中,这样写
复制代码 代码如下:


这样的话在下面调用get()就会自动显示你上面name输入的值。
3:PHP中取页面的值
这个我想大家都会了吧
复制代码 代码如下:
$name=$_REQUEST["username"];
echo $name;
?>

4:PHP的值传回页面
在HTML中插入PHP语言,可以调用PHP中变量的值,也可用Smarty(推荐)。
有了以上这些,不管是HTML页面里的值还是JS中变量的值,都可以轻松的传入PHP,当然,PHP的值也可传到想要的地方。
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