javascript中的变量如何传到php中,一个高难问题 100大分!
大家知道有时php和javascript要混合双打的,
有时有这种需求,即把js中的变量传到php中,那么问题来了,怎么传呢,图中是我的意图
<script>var id="[!--id--]";<?phpif(id==13) $class_r[id][bclassid]==0;?></script>
回复讨论(解决方案)
js 将数据传到 php 服务器端需要通过ajax
如果已经生成好的页面把动态值传到php ,返回后再执行下一步操作那就要用ajax。
否则你可以用变量保存下来,同时使用在JS和PHP
楼主提到的事情永远不会发生,php和js不会在一个时间运行
另外楼主是那个id: sheep_app3,呵呵。
<script> <br /> <br /> var idd="[!--id--]"; <br /> if(idd=13) <br /> document.write(idd); <br /> <br /> </script>
?>
这样写为啥不行呢
Parse error: syntax error, unexpected '<' in D:\WWW\dgcms\e\sch\index.php on line 254
哈哈哈,楼主继续。
<script> <br /> <br /> var idd="[!--id--]"; <br /> if(idd=13) <br /> document.write(idd); <br /> <br /> </script>
?>
这样写为啥不行呢
Parse error: syntax error, unexpected '<' in D:\WWW\dgcms\e\sch\index.php on line 254
echo。
<script>var id="[!--id--]"; <?php if(id==13) $class_r[id][bclassid]==0; ?> </script>
这段代码用户访问后得到的大概是:
<script>var id="[!--id--]"; </script>
因为php是在服务器执行的。
<script> <br /> <br /> var idd="[!--id--]"; <br /> if(idd=13) <br /> document.write(idd); <br /> <br /> </script>
?>
这样写为啥不行呢
Parse error: syntax error, unexpected '<' in D:\WWW\dgcms\e\sch\index.php on line 254
<?php //php开始<script> //php 不认得这个,因为这个是html标签,你这里是让服务器在执行了var idd="[!--id--]";if(idd=13)document.write(idd);</script>?>至少写成:echo “<script>XXXX</script>”; //这样就发送到客户端了
你说的混合双打呢,要么是php传到js,要么是js传到php
<script>var id=<?php echo $id;?> </script>
$.ajax({ //需要jquery url: "test.php",});
楼主需要先了解服务器和客户端的一些概念.
哈哈哈,楼主继续。
好像还真是
哈哈哈,楼主继续。
好像还真是
啥意思?
哈哈哈,楼主继续。
好像还真是
啥意思?
一奇葩,你翻一下解决的帖子找找那个id
哈哈哈,楼主继续。
好像还真是
啥意思?
一奇葩,你翻一下解决的帖子找找那个id
呵呵,最近咋回事

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