下面是我想在我的网站上普遍使用的导航栏的 html 和 css，有没有办法把它放在一个单独的文件中，然后在 html 和 php 文件的开头调用该文件对于我的网页？我试图将它们放在单独的文件中并将它们包含在其他 html 页面中。至于 php，我可以包含“path/to/html/file”还是将其放在 php 之上？我只是想要一种更有条理的方式来做到这一点。感谢您的帮助，谢谢!
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
body, html {
height: 100%;
margin: 0;
font-family: Arial, Helvetica, sans-serif;
}
* {
box-sizing: border-box;
}
.bg-image {
/* Full height */
height: 50%;
/* Center and scale the image nicely */
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
/* Images used */
.img1 { background-image: url("logo.jpeg"); }
/* Position text in the middle of the page/image */
.bg-text {
color: black;
font-weight: bold;
font-size: 80px;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
z-index: 2;
width: 300px;
padding: 20px;
text-align: center;
}
</style>
</head>
<style>
.navbar {
overflow: hidden;
background-color: #333;
font-family: Arial, Helvetica, sans-serif;
}
.navbar a {
float: left;
font-size: 16px;
color: white;
text-align: center;
padding: 14px 16px;
text-decoration: none;
}
.dropdown {
float: left;
overflow: hidden;
}
.dropdown .dropbtn {
font-size: 16px;
border: none;
outline: none;
color: white;
padding: 14px 16px;
background-color: inherit;
font-family: inherit;
margin: 0;
}
.navbar a:hover, .dropdown:hover .dropbtn {
background-color: red;
}
.dropdown-content {
display: none;
position: absolute;
background-color: #f9f9f9;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
}
.dropdown-content a {
float: none;
color: black;
padding: 12px 16px;
text-decoration: none;
display: block;
text-align: left;
}
.dropdown-content a:hover {
background-color: #ddd;
}
.dropdown:hover .dropdown-content {
display: block;
}
</style>
</head>
<body>
<div class="navbar">
<a href="../login/homePage.html">Lewis University</a>
<div class="dropdown">
<button class="dropbtn">Colleges</button>
<div class="dropdown-content">
<a href="../colleges/show_college.php">List Colleges</a>
<a href="../colleges/search_college.html">Search Colleges</a>
<a href="../colleges/new_college.html">Add Colleges</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Department</button>
<div class="dropdown-content">
<a href="../department/show_department.php">List Department</a>
<a href="../department/search_department.html">Search Department</a>
<a href="../department/new_department.html">Add Department</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Program</button>
<div class="dropdown-content">
<a href="../program/show_program.php">List Program</a>
<a href="../program/search_program.html">Search Program</a>
<a href="../program/new_program.html">Add Program</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Concentration</button>
<div class="dropdown-content">
<a href="../concentration/show_concentration.php">List Concentration</a>
<a href="../concentration/search_concentration.html">Search Concentration</a>
<a href="../Concentration/new_concentration.html">Add Concentration</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">prefix</button>
<div class="dropdown-content">
<a href="../prefix/show_prefix.php">List Prefixes</a>
<a href="../prefix/search_prefix.html">Search Prefixes</a>
<a href="../prefix/new_prefix.html">Add Prefixes</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Course</button>
<div class="dropdown-content">
<a href="../courses/show_course.php">List Course</a>
<a href="../courses/search_course.html">Search Course</a>
<a href="../courses/new_course.html">Add Course</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Coures & Concentration</button>
<div class="dropdown-content">
<a href="../course_concentration/show_course_concentration.php">List Coures & Concentration</a>
<a href="../course_concentration/search_course_concentration.html">Search Coures & Concentration</a>
<a href="../course_concentration/new_course_concentration.html">Add Coures & Concentration</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Course Type</button>
<div class="dropdown-content">
<a href="../course_type/show_course_type.php">List Course Type </a>
<a href="../course_type/search_coures_type.html">Search Course Type</a>
<a href="../course_type/new_course_type.html">Add Course Type</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Course & Prereq</button>
<div class="dropdown-content">
<a href="../course_prereq/show_course_prereq.php">List Course & Prereq</a>
<a href="../course_prereq/search_course_prereq.html">Search Course & Prereq</a>
<a href="../course_prereq/new_course_prereq.html">Add Course & Prereq</a>
</div>
</div>
<div class="dropdown">
<button class="dropbtn">Phrase</button>
<div class="dropdown-content">
<a href="../phrase/show_phrase.php">List Phrase</a>
<a href="../phrase/search_phrase.html">Search Phrase</a>
<a href="../phrase/new_phrase.html">Add Phrase</a>
</div>
</div>
</div>
</head>
<body>
<main role="main" class="container-fluid">
<h1> Colleges </h1>
最佳答案
对于 CSS，使用外部样式表。在您的 header 中，包括这一行:
<link rel="stylesheet" type="text/css" href="mystyle.css">
然后从 <head> 中剪下所有的 css 并将其粘贴到 mystyle.css 中。
这样做的目的是，无论何时链接上面的代码行，该页面都会从 mystyle.css 调用 css 样式。
要清理您的 html 代码，您不应该清理整个 html，而应该只清理重复出现在其他页面中的 html 代码。比如你的导航菜单。
您可以使用名为 include 的 php 函数来完成此操作
试试这个:
1) 创建一个名为 navigation.php 的新文件 - 在此文件中，从 <div class="navbar">.....</div> 开始粘贴整个导航 html 代码。
2) 现在对于您的 html，您必须将其重命名为 .php 。所以 index.html 应该是 index.php 。
3) 现在 include 通过这样做导航它:
<body>
<?php include 'navigation.php';?>
// your html codes of other things below your navigation
</body>
这样你就可以调用导航菜单、页脚等重复的东西。
关于php - 我该怎么做才能清理我的 php 文件以不在其中包含 html 和 css？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/58479214/