php表单和index.htm [英] php forms and index.htm

问题描述

我的索引页面上有一个用户名和密码输入，带有登录按钮。

我已经在index.php中进行了所有必要的验证。我只希望我的错误显示在表单上这是可能的。

i have on my index page an input for username and password with a login button.
I have put all the necessary validation in my index.php. I only want my errors tp show on the form is this possible.

<form name="loginform" id="loginform1" action="unsaved:///?page_id=7&instance=1" method="post">
							<p><label for="user_login1">Username</label>
							<input type="text" name="log" id="user_login1" class="input" value="" size="20" />
							</p>
							<p><label for="user_pass1">Password</label>
							<input type="password" name="pwd" id="user_pass1" class="input" value="" size="20" />
							</p>
							<p class="forgetmenot">
							<input name="rememberme" type="checkbox" id="rememberme1" value="forever" />
							<label for="rememberme1">Remember Me</label> </p>
							<p class="submit">
							<input type="submit" name="doLogin" id="doLogin" value="Log In" />

我在哪里可以输入错误消息。

where can i put the errors message.

推荐答案

使用'onsubmit'属性声明您的表单标签，如下所示

Declare your form tag with 'onsubmit' attribute as below

<form name="loginform" id="loginform1" action="unsaved:///?page_id=7&instance=1" method="post" onsubmit="return validate()">

为特定元素，比如用户名的输入框，你可以在javascript的validate（）函数中验证，如下所示

for a particular element, say input box for User name you can validate inside validate() function of javascript as below

function validate()
{
  var username=document.getElementById("user_login1").val();
  if(username == "")
  {
    alert("User name can't be left blank!");
    return false;
  }
}

同样，您可以根据验证要求验证表单的其他成员。希望这样帮助你。

Likewise you can validate other members of form as per your validation requirements.Hope this will help you.

我使用的是php。对于任何有问题的人，你可以查看我网站上的代码http://www.horsespeedracing.co.za



我不确定我是否被允许给我的网址。如果我不想，我道歉。

i used php instead. for anyone having the problem you can check the code in action in my site http://www.horsespeedracing.co.za

I am not sure if I am allowed to give my url address. My apologies if I was not suppose to.

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