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HomeBackend DevelopmentPHP TutorialPHP基础-生成静态html页面原理

经常操作网站后台的人都知道,现在大多数的网站系统,如dedecms、phpcms、帝国等知名内容管理系统都提供生成静态页面的功能,这不光有利于搜索引擎的抓取,而且还能有效降低服务器压力,所以说这是一个很流行、实用的功能。对于学习PHP,将要从事WEB网站开发的朋友们来说,了解这个功能是必不可少的,由此,下面来分享一下PHP生成静态页面的原理。

一、思路分析

其实,实现静态页面生成功能的原理很简单,主要利用几个常见的PHP文件操作函数对文件进行操作,其思路流程如下:

生成静态页面流程图

二、功能实现

设置example.html为模板文件,然后按照此模板文件生成article-1.html~article-5.html,以此来做简单的演示,代码如下:

<?php//将数据存入二维数组$con=array(array('文章标题1','文章内容1'),array('文章标题2','文章内容2'),array('文章标题3','文章内容3'),array('文章标题4','文章内容4'),array('文章标题5','文章内容5'));foreach($con as $id=>$val){    //循环生成  $title=$val[0];  $content=$val[1];  $path="article-".($id+1).".html";  //替换example内容,并获取内容赋值给$str  $fp=fopen("example.html","r");  $str=fread($fp,filesize("example.html"));  $str=str_replace("{title}",$title,$str);  $str=str_replace("{content}",$content,$str);  fclose($fp);  //新建空白文件,将$str写入  $handle=fopen($path,"w");  fwrite($handle,$str);  fclose($handle);  echo "生成".$path."<br/>";}?>}

注解:

  • fopen(文件名,打开方式),打开文件函数,若无文件,则创建。其返回值为资源型;
  • fread(文件名,读取字节数),读取文件内容及对应的字节数;
  • str_replace(规定要查找的值,替换被查找值的值,被搜索的字符串),替换函数;
  • fclose(文件名),关闭文件;
  • fwrite(要写入的打开文件,要写入打开文件的字符串,要写入的最大字节数)。

三、最后

原理比较简单,作为php初学者,要把每个基础知识扎实学好,坚持每天撸码,形成条件反射,其次以工作需求为导向,设定好阶段性目标,相信,你的PHP之路定会风光无限,共勉!

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