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Homephp教程php手册php向js函数传参的几种方法,phpjs函数几种方法

php向js函数传参的几种方法,phpjs函数几种方法

<&#63;php 
echo "<script>test('$_POST[userid]');</script> ";
&#63;>

在上面的$_POST['']也可适用$_SESSION[' '];

<&#63;php 
$para = "hello boby!"; 
echo $para; 
echo "<script> var para=\"$para\"; alert(para);</script>"; 
&#63;>;

怎往js方法中传入php的变量作为参数?

<script><br />function show(str){<br /> alert(st);<br />}<br /> <br />show("<?php echo $value; ?>");&#47;&#47;将php变量的值输出到JS调用函数的参数里面;<br /><&#47;script><br/>   <p class="header2"><span class="icon i-relatedanswer"><h3>js函数参数的值传递js与php</script>

按你这样就是在把js的变量拿去php里面使用, 这是不可行的, 无法实现的.

首先你要明白, php脚本是第一时间编译的, 编译完了php才会去执行html,javascript.

我看你的需求可以不需要javascript来做,你的这个sid完全可以用get/post的方式来传值, 如果想无刷新, 则要使用ajax异步来实现.

啰嗦一下:

在js里面可以使用php的变量, 反之不行
 

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