页面布局之include 妙用

<?php include 'inc/header.php'?>  //用include引入头部文件   include是将一个外部文件引入进来 require_once只会引入一次 include_once同理
      <div class="row">
          <div class="col-md-8">
              <div class="page-header">
                  <h1>最新文章</h1>
              </div>
          </div>
          <div class="col-md-4">
              <div class="page-header">
                  <h1>阅读排行榜</h1>
              </div>
          </div>
      </div> <!--主体标题-->
      <div class="row">
          <div class="col-md-8">
              <div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
                  <div class="panel panel-default">
                      <div class="panel-heading" role="tab" id="headingOne">
                          <h4 class="panel-title">
                              <a role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
                                  Collapsible Group Item #1
                              </a>
                          </h4>
                      </div>
                      <div id="collapseOne" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="headingOne">
                          <div class="panel-body">
                              Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                          </div>
                      </div>
                  </div>
                  <div class="panel panel-default">
                      <div class="panel-heading" role="tab" id="headingTwo">
                          <h4 class="panel-title">
                              <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
                                  Collapsible Group Item #2
                              </a>
                          </h4>
                      </div>
                      <div id="collapseTwo" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingTwo">
                          <div class="panel-body">
                              Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                          </div>
                      </div>
                  </div>
                  <div class="panel panel-default">
                      <div class="panel-heading" role="tab" id="headingThree">
                          <h4 class="panel-title">
                              <a class="collapsed" role="button" data-toggle="collapse" data-parent="#accordion" href="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
                                  Collapsible Group Item #3
                              </a>
                          </h4>
                      </div>
                      <div id="collapseThree" class="panel-collapse collapse" role="tabpanel" aria-labelledby="headingThree">
                          <div class="panel-body">
                              Anim pariatur cliche reprehenderit, enim eiusmod high life accusamus terry richardson ad squid. 3 wolf moon officia aute, non cupidatat skateboard dolor brunch. Food truck quinoa nesciunt laborum eiusmod. Brunch 3 wolf moon tempor, sunt aliqua put a bird on it squid single-origin coffee nulla assumenda shoreditch et. Nihil anim keffiyeh helvetica, craft beer labore wes anderson cred nesciunt sapiente ea proident. Ad vegan excepteur butcher vice lomo. Leggings occaecat craft beer farm-to-table, raw denim aesthetic synth nesciunt you probably haven't heard of them accusamus labore sustainable VHS.
                          </div>
                      </div>
                  </div>
              </div>
          </div>
          <div class="col-md-4">
              <ul class="list-group">
                  <li class="list-group-item">
                      <span class="badge">14</span>
                      Cras justo odio
                  </li><li class="list-group-item">
                      <span class="badge">10</span>
                      Cras justo odio
                  </li><li class="list-group-item">
                      <span class="badge">1</span>
                      Cras justo odio
                  </li>
              </ul>
          </div>
      </div> <!--主体-->
<?php include 'inc/footer.php'?>//用include引入底部文件

inc/header.php 头部代码：

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" href="lib/dist/css/bootstrap.css">
    <script src="lib/jquery-3.2.1.js"></script>
    <script src="lib/dist/js/bootstrap.js"></script>
    <meta name="viewport"
 content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-12">
            <nav class="navbar navbar-inverse">
                <div class="container-fluid">
                    <!-- Brand and toggle get grouped for better mobile display -->
 <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="#">我的博客</a>
                    </div>

                    <!-- Collect the nav links, forms, and other content for toggling -->
 <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
                        <ul class="nav navbar-nav">
                            <li class="active"><a href="#">我的记录 <span class="sr-only">(current)</span></a></li>
                            <li><a href="#">经验</a></li>
                            <li><a href="#">笔记</a></li>

                        </ul>



                        </ul>
                    </div><!-- /.navbar-collapse -->
 </div><!-- /.container-fluid -->
 </nav>
        </div>
    </div> <!--头部-->

inc/footer.php 底部代码：

<div class="row">
    <nav class="navbar navbar-inverse text-center table-bordered ">
        <p style="color: #2aabd2;">我的博客版权所有</p>
    </nav>
</div> <!--底部-->
</div>
</body>
</html>

笔记：include是将一个外部文件引入进来 require_once只会引入一次 include_once同理