介绍生成PHP网站页面静态化的方法
页面静态化的方法,分为两种,一种是伪静态,就是url 重写,一种是你真的静态化。下面介绍PHP中页面静态化的方法。
在PHP网站开发中为了网站推广和SEO等需要,需要对网站进行全站或局部静态化处理,PHP生成静态HTML页面有多种方法,比如利用PHP模板、缓存等实现页面静态化,今天就以PHP实例教程形式讨论PHP生成静态页面的方法。
什么是PHP静态化
PHP静态化的简单理解就是使网站生成页面以静态HTML的形式展现在访客面前,PHP静态化分纯静态化和伪静态化,两者的区别在于PHP生成静态页面的处理机制不同。
PHP生成静态HTML页面的方法
1、利用PHP模板生成静态页面
PHP模板实现静态化非常方便,比如安装和使用PHP Smarty实现网站静态化。
2、使用PHP文件读写功能生成静态页面
PHP生成静态页面实例代码
<ol class="dp-c"> <li class="alt"><span><span> </span></span></li> <li> <span class="vars">$out1</span><span> = "<title>PHP网站静态化教程</title> </span> </li> <li class="alt"><span>欢迎访问PHP网站开发教程网www.leapsoul.cn,本文主要介绍PHP网站页面静态化的方法 </span></li> <li><span>"; </span></li> <li class="alt"> <span> </span><span class="vars">$fp</span><span> = </span><span class="func">fopen</span><span>(</span><span class="string">"leapsoulcn.html"</span><span>,</span><span class="string">"w"</span><span>); </span> </li> <li> <span class="keyword">if</span><span>(!</span><span class="vars">$fp</span><span>) </span> </li> <li class="alt"><span>{ </span></li> <li> <span class="func">echo</span><span> </span><span class="string">"System Error"</span><span>; </span> </li> <li class="alt"> <span class="func">exit</span><span>(); </span> </li> <li><span>} </span></li> <li class="alt"> <span class="keyword">else</span><span> { </span> </li> <li> <span>fwrite(</span><span class="vars">$fp</span><span>,</span><span class="vars">$out1</span><span>); </span> </li> <li class="alt"> <span>fclose(</span><span class="vars">$fp</span><span>); </span> </li> <li> <span class="func">echo</span><span> </span><span class="string">"Success"</span><span>; </span> </li> <li class="alt"><span>} </span></li> <li><span>?> </span></li> </ol>
3、使用PHP输出控制函数(Output Control)生成静态页面
输出控制函数(Output Control)也就是使用和控制缓存来生成静态HTML页面,也会使用到PHP文件读写函数。
PHP生成静态页面实例代码
<ol class="dp-c"> <li class="alt"><span><span> </span></span></li> <li><span>ob_start(); </span></li> <li class="alt"> <span class="func">echo</span><span> </span><span class="string">""</span><span>. </span> </li> <li> <span class="string">""</span><span>. </span> </li> <li class="alt"> <span class="string">"<title>PHP网站静态化教程</title>"</span><span>. </span> </li> <li> <span class="string">""</span><span>. </span> </li> <li class="alt"> <span class="string">"欢迎访问PHP网站开发教程网www.leapsoul.cn,本文主要介绍PHP网站页面静态化的方法"</span><span>. </span> </li> <li> <span class="string">""</span><span>; </span> </li> <li class="alt"><span> </span></li> <li> <span class="vars">$out1</span><span> = ob_get_contents(); </span> </li> <li class="alt"><span>ob_end_clean(); </span></li> <li> <span class="vars">$fp</span><span> = </span><span class="func">fopen</span><span>(</span><span class="string">"leapsoulcn.html"</span><span>,</span><span class="string">"w"</span><span>); </span> </li> <li class="alt"> <span class="keyword">if</span><span>(!</span><span class="vars">$fp</span><span>) </span> </li> <li><span>{ </span></li> <li class="alt"> <span class="func">echo</span><span> </span><span class="string">"System Error"</span><span>; </span> </li> <li> <span class="func">exit</span><span>(); </span> </li> <li class="alt"><span>} </span></li> <li> <span class="keyword">else</span><span> </span> </li> <li class="alt"><span>{ </span></li> <li> <span>fwrite(</span><span class="vars">$fp</span><span>,</span><span class="vars">$out1</span><span>); </span> </li> <li class="alt"> <span>fclose(</span><span class="vars">$fp</span><span>); </span> </li> <li> <span class="func">echo</span><span> </span><span class="string">"Success"</span><span>; </span> </li> <li class="alt"><span>} </span></li> <li><span>?> </span></li> </ol>
我们知道使用PHP进行网站开发,一般执行结果直接输出到游览器,为了使用PHP生成静态页面,就需要使用输出控制函数控制缓存区,以便获取缓存区的内容,然后再输出到静态HTML页面文件中以实现网站静态化。
PHP生成静态页面的思路为:首先开启缓存,然后输出了HTML内容(你也可以通过include将HTML内容以文件形式包含进来),之后获取缓存中的内容,清空缓存后通过PHP文件读写函数将缓存内容写入到静态HTML页面文件中。PHP文件读写教程?
获得输出的缓存内容以生成静态HTML页面的过程需要使用三个函数:ob_start()、ob_get_contents()、ob_end_clean()。
知识点:
1、ob_start函数一般主要是用来开启缓存,注意使用ob_start之前不能有任何输出,如空格、字符等。
2、ob_get_contents函数主要用来获取缓存中的内容以字符串形式返回,注意此函数必须在ob_end_clean函数之前调用,否则获取不到缓存内容。
3、ob_end_clean函数主要是清空缓存中的内容并关闭缓存,成功则返回True,失败则返回False
PHP输出控制函数(Output Control)有很多应用,今后将陆续展开。
至此,使用PHP生成静态HTML页面以实现网站静态化的方法就介绍完了,根据实际情况和需求你可以选择不同的静态化方法。
原文地址:http://www.leapsoul.cn/?p=986

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