我在php中的表单一直有问题，我有一个搜索表单和一个注册表单，但每当我包含header.php时，其中搜索表单与注册表单在同一页面中，注册表单要求还应填写搜索文本框。。。。请帮忙。。。提前感谢。。。以下是搜索表单：
<?php //header.php
echo "<header class='top' role='header'>
<div class='container head' style='padding:0 !important;'>
<nav class='navbar navbar-default' style='margin-bottom:0px;'>
<div class='container-fluid' style='background-color:white;'>
<div class='navbar-header'>
<button type='button' class='navbar-toggle collapsed' data-toggle='collapse' data-target='#bs-example-navbar-collapse-1' aria-expanded='false'>
<span class='sr-only'>
Toggle navigation
</span>
<span class='icon-bar'>
</span>
<span class='icon-bar'>
</span>
<span class='icon-bar'>
</span>
</button>
<a class='navbar-brand' href=''>
<img id='logo' class='logo' name='logo' src='../images/euLogo.png' />
</a>
</div>
<div class='collapse navbar-collapse' id='bs-example-navbar-collapse-1'>
<form class='navbar-form navbar-left frm-search' role='search'>
<div class='form-group'>
<input type='text' class='form-control' placeholder='Search' />
</div>
<button type='submit' class='btn btn-info'>
<span class='glyphicon glyphicon-search'>
</span>
</button>
</form>
<ul class='nav navbar-nav navbar-right'>
<li>
<a href=''><img id='btn-credits' class='btn-credits' name='btn-credits' src='../images/piggybank.png' />
</a>
</li>
<li>
<a href='https://www.facebook.com/uniteenglish/?fref=ts'>
<img id='btn-FBLike' name='btn-FBLike' class='btn-FBLike' src='../images/like.png' />
</a>
</li>
<li class='dropdown'>
<a href='' class='dropdown-toggle' data-toggle='dropdown' role='button' aria-haspopup='true' aria-expanded='false'>
Welcome
<label id='user-name' name='user-name' class='user-name'>
</label>
<span class='caret'>
</span>
</a>
<ul class='dropdown-menu'>
<li>
<a href=''>
My Account
</a>
</li>
<li>
<a href=''>
My Credits
</a>
</li>
<li>
<a href=''>
Something else here
</a>
</li>
<li role='separator' class='divider'>
</li>
<li>
<a href=''>
Separated link
</a>
</li>
</ul>
</li>
</ul>
</div>
</div>
</nav>
</div>
</header>";
?>
和register.php：
<?php
echo "<div class='container'>
<br/>
<form action='registeruser.php' id='frm-register' name='frm-register' class='frm-register' method='POST'>
<label>
User name:
</label>
<input type='text' id='username' class='form-control frm' name='username' />
<span class='errorMessage'>
</span>
<br/>
<label>
Email:
</label>
<input type='email' id='email' class='form-control frm' name='email' />
<span class='errorMessage'>
</span>
<br/>
<label>
Confirm Email:
</label>
<input type='email' id='re_email' class='form-control frm' name='re_email' />
<span class='errorMessage'>
</span>
<br/>
<label>
Password:
</label>
<input type='password' id='password' class='form-control frm' name='password' />
<span class='errorMessage'>
</span>
<br/>
<label>
Confirm Password:
</label>
<input type='password' id='re_password' class='form-control frm' name='re_password' />
<span class='errorMessage'>
</span>
<br/>
<label>
I am a:
</label>
<select id='iam' class='form-control frm' name='iam'>
<option value='Teacher'>
Teacher
</option>
<option value='Student'>
Student
</option>
<option value='Parent'>
Parent
</option>
</select>
<br/>
<label>
<input type='checkbox' id='agree' name='agree' class='check' value='I agree to terms and conditions and privacy policy.' />
I agree to terms and conditions and privacy policy.
</label>
<br/>
<br/>
<label>
Registration Type:
</label>
<input type='text' id='role' class='form-control frm' name='role' value='Member' readonly />
<br/>
<input type='submit' id='btn-register' class='form-control btn btn-danger frm' name='btn-register' value='Register Now' />
<br/>
<br/>
</form>
</div>";
?>
我认为您的问题是您没有为搜索表单分配minimun属性，而寄存器使其成为必需的。应该这样修复：
<form class='navbar-form navbar-left frm-search' role='search' name='search' method="post" action="yourfile.php">
<div class='form-group'>
<input type='text' class='form-control' placeholder='Search' />
</div>
<button type='submit' class='btn btn-info'>
<span class='glyphicon glyphicon-search'></span>
</button>
</form>
这是一个关于身份识别的问题，因为登记表认为搜索属于它
为了获得更多的信息和良好的实践，我推荐你这篇文章。
希望这对你有帮助。