How to set cache time in php

php method to set cache time: first create a PHP sample file; then pass "if(is_file('./index.html') && (time()-filemtime('./index.html') )) < 60){...}" method to set the cache time.

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Operating environment for this tutorial:

• Windows7 system, PHP5.6 version

• Suitable for all brands of computers

php handles static pages: page settings Cache time

1. Page added cache time

2. Manual triggering method

3.crontab scheduled scanner

Let’s implement it Option 1: Add cache time to the page

用户请求页面 => 页面是否过期 => => 否(获取静态页面) || =>是(动态页面生成一份新的静态页面) if( 如果存在这个静态文件 && 没有过期){ // 获取页面 }else{ // 重新生成一份静态页面 }

ok, the basic logic is like this, let’s improve the code below:

1,'msg'=>'hello java'), array('id'=>2,'msg'=>'hello php'), array('id'=>3,'msg'=>'hello python'), ); // 渲染到模板 // 实际项目一般是在html里渲染 // 这里演示 希望能看懂 ob_start(); // 开始输入缓冲控制 foreach($data as $item){ echo $item['id'].'===>'.$item['msg'].'
'; } // 开始生成静态页面文件 file_put_contents('index.html',ob_get_contents()); }

In this way we access index.php, if the static file cache has not expired, its actual access The content comes from the static file index.html.

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