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HomeBackend DevelopmentPHP Tutorial怎么用js 传递参数 到php文件

刚学习php
写了个登陆页 在登陆页中 用js写了判断帐号密码是否空提示的代码 现在想要把输入的帐号密码传递到php验证页面中 不知道应该怎么写了 请大家指点 

这是代码
<script> <br /> window.onload=function() <br /> { <br /> var oUsername=document.getElementById('username'); <br /> var oPassword=document.getElementById('password'); <br /> var oBtn=document.getElementById('btn'); <br /> var oerr=document.getElementById('err'); <br /> <br /> oUsername.focus(); <br /> oBtn.onclick=function() <br /> { <br /> if(oUsername.value=='') <br /> { <br /> oerr.style.display='block'; <br /> oUsername.focus(); <br /> } <br /> else if(oPassword.value=='') <br /> { <br /> oerr.style.display='block'; <br /> oPassword.focus(); <br /> } <br /> else if(oerr.style.display='block') <br /> {oerr.style.display='none';} <br /> <br /> <br /> } <br /> } <br /> </script>


怎么用js 传递参数 到php文件


    

    
帐号或密码不能为空!

        
帐 号

        

        
密 码

        

        

    



回复讨论(解决方案)

无刷新验证的话,搜索ajax.
跳转到php端验证的话,直接提交表单即可。

无刷新验证的话,搜索ajax.
跳转到php端验证的话,直接提交表单即可。

使用form 的话写js就失去功能了

不会啊,先进行js验证,再传到php验证嘛。

使用form 后 直接就传递至php验证页面了
还是我写错了

使用form 后 直接就传递至php验证页面了
还是我写错了


function check(){
        //验证成功return true;失败return false;
}

贴出代码看看

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