我正在使用php header＆amp; amp; 这是我的代码标题： 在控制台中出现此错误： 有人知道问题是什么以及如何解决它？ 解决 问题出现在页脚标题和调用相同文件的页面中，因此当调用该函数时，状态不会返回，因为重复该操作3次nil <div class="container">
<div class="row">
<div class="col-sm-3">
<div id="logo" class="float-xs-left">
<a class="navbar-brand" href="xxxxxxx/"><img src="img/logo-white.png" /></a>
</div>
</div>
<!--div class="col-sm-6" -->
<div class="float-xs-right">
<!--/div> -->
<!--cols:12 -->
<!--cols:12 -->
<div class="offcanvas">
<div class="navbar yamm col-lg-8 col-md-8 col-sm-6 ">
<div class="navbar-header">
<button type="button" class="navbar-toggler" data-toggle="collapse" data-target=".offcanvas.menu">
<i class="fa fa-bars"></i>
<div class="line line-1"></div>
<div class="line line-2"></div>
<div class="line line-3"></div>
</button>
</div>
<!-- outside -->
<div class="offcanvas menu right">
<div class="navbar-collapse collapse">
<button data-target=".offcanvas.menu" data-toggle="collapse" class="navbar-toggle" type="button">
</button>
<div class="nav navbar-nav">
<div class="list-group">
<!-- li><a href=""><span class="home">⌂</span></a></li -->
<a href="#"><img class="logo-img" src="img/logo-full.png" class="img-responsive" /></a>
<a href="index.php" class="list-group-item "> INICIO </a>
<a href="#p5" class="list-group-item " data-toggle="collapse"> home <b class="fa fa-chevron-down"></b></a>
<div class="collapse" id="p5">
<a href="page-1.php" class="list-group-item">
Espresso </a>
<a href="page-2.php" class="list-group-item">
Clásico </a>
<a href="page-3.php" class="list-group-item">
Orgánico </a>
<a href="page-4.php" class="list-group-item">
Descafeinado </a>
<a href="page-5.php" class="list-group-item">
Toscana </a>
</div>
<a href="page-10.php" class="list-group-item "> </a>
<a href="page-11.php" class="list-group-item "> </a>
<a href="page-12.php" class="list-group-item "> </a>
<a href="#p6" class="list-group-item " data-toggle="collapse"> <b class="fa fa-chevron-down"></b></a>
<div class="collapse" id="p6">
<a href="page-11.php" class="list-group-item">
</a>
</div>
<a href="#p4" class="list-group-item " data-toggle="collapse"> <b class="fa fa-chevron-down"></b></a>
<div class="collapse" id="p4">
<a href="page-13.php" class="list-group-item">
item </a>
<a href="#c1" class="list-group-item" data-toggle="collapse">
another one<b class="fa fa-chevron-down"></b> <span class="cat_url" onclick="location.href='other.php'"><i class="fa fa-mail-forward"></i></span> </a>
<div class="collapse" id="c1">
<a href="page-14.php" class="list-group-item">name</a>
<a href="item-1.php" class="list-group-item">name</a>
<a href="item-2.php" class="list-group-item">name</a>
<a href="item.php" class="list-group-item">name</a>
<a href="item.php" class="list-group-item">name</a>
</div>
<a href="#" class="list-group-item">
other page </a>
<a href="#" class="list-group-item">
other page </a>
<a href="#" class="list-group-item">
other page </a>
<a href="page-15.php" class="list-group-item">
other name </a>
<a href="page.php" class="list-group-item">
name </a>
<a href="page.php" class="list-group-item">
name </a>
<a href="#" class="list-group-item">
name </a>
</div>
<a href="#p7" class="list-group-item " data-toggle="collapse"> page title <b class="fa fa-chevron-down"></b></a>
<div class="collapse" id="p7">
<a href="page-16.php" class="list-group-item">
Name </a>
<a href="page-17.php" class="list-group-item">
name </a>
</div>
<a href="#" class="list-group-item "> page </a>
</div>
<br/>
</div>
</div>
</div>
<!-- /.navbar-collapse -->
</div>
<div class="pusher"></div>
<!-- end outside -->
</div>
</div>
</div>
<!--cols:12 -->
<div class="navbar yamm ">
<div class="navbar-header hidden-lg-up">
<button type="button" class="navbar-toggler" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>
<div class="navbar-toggleable-md collapse">
<ul class="nav navbar-nav">
<!-- li><a href=""><span class="home">⌂</span></a></li -->
<li class="nav-item ">
<a href="contacto.php" >Contáctanos</a>
</li>
<li class="nav-item ">
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
</div>
</div>
</div>
</header>
答案 0 :(得分：0)
最后解决了这个问题，页眉，页脚和索引中有一个三重脚本句子，在页眉和页脚中被删除了。