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php、
if(){}

else 
{
echo "<script><br /> $(document).ready(function() {$('.captcha').hide(); });<br /></script>";
......php代码,在此省略
}

我想要的结果是当执行else的时候页面中的captcha class的css给隐藏掉。但如上写的代码貌似不对,该怎么在php的判断语句中加jquery代码啊?

------解决方案--------------------
如果代码没有问题的话

PHP code
echo (function($){ $('.captcha').show(); })(jQuery);HTML;$error_msg = elgg_echo('loginerror');<br><font color="#e78608">------解决方案--------------------</font><br>
探讨

3楼的不对啊,

------解决方案--------------------
此易事尔

if(){

}else
?>
<script>//jquery</script>
 }
?>
------解决方案--------------------
";多了这个,加分吧,,我分少呢
------解决方案--------------------
这段JS代码要放在引入jquery.js文件之后


问题关键在于,最终输出到客户端的html代码是怎样的
------解决方案--------------------
我已经告诉过你了

不过记得,这个输出必须在你的captcha已经正常输出之后进行控制,否则无效。

所以其实你应该这么做 php输出一个隐藏的值例如
echo '';

在整个页面载入之后再根据这个值来执行相应的操作。
JScript code
$(document).ready(function() {    if ($('#fool').val()=='false'){//执行代码$('.captcha').show();  }});<br><font color="#e78608">------解决方案--------------------</font><br>
探讨

else
{
?>
<script><br />$('.captcha').show(); <br /></script>

这样也不行啊

------解决方案--------------------
你要明白一点 php是运行在服务器端而js和jquery是运行在客户端的,所以在你需要操作的html标签没有显示到客户端的时候,jquery是无法操作这些代码的。理解这点你就知道剩下的怎么做了。
------解决方案--------------------
算了,告诉你一招秘技,一般人我不告诉他,记得给分。。

PHP code
<script src="jquery-1.4.2.js"></script> <div id="dv" style="display:none;width:100px;height:100px;border:1px solid red"></div>  <?php $k='<script>     $(function(){       $("#dv").show(3000);     }) ';     $do=DOMDocument::loadHTML($k);     echo $do->saveHTML(); ?><br><font color="#e78608">------解决方案--------------------</font><br>
探讨

我是这么做的,看看对不对啊
else
{
$value = "value";
setcookie("test",$value);

然后在view页里

------解决方案--------------------
document.cookie的用法不是 名=值 一一对应的么? document.cookie="Id=111"; 
就算你的cookie 有内容吧
if (cookies == 'value') 这里怎么是这样判断呢.
getCookie('Id')//获取cookie的值

...

一塌糊涂啊....

http://www.satya-weblog.com/2007/05/php-and-javascript-cookie.html

先看看基本的东西.先仔细的学习一下cookie 在php和js里的用法.




------解决方案--------------------
另外firebug是可以断点调试的,多多用这个功能+alter 慢慢找代码不对的地方吧
------解决方案--------------------
你的描述 有问题啊
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