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Summary of PHP file operation methods

韦小宝
韦小宝Original
2018-01-31 10:00:341468browse

After we have learned the relative basics of PHP, we will learn how to operate PHP files. There are many ways to operate files. We need to open the PHP file, add, delete, modify, and check the PHP file. Finally, we need to close it. PHP file, let’s not talk too much nonsense, let’s take a look together! !

Write data in the data file:

 <?php
 /**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2015/6/29
 * Time: 17:05
 */
 header("Content-type: text/html; charset=utf-8");
 //write data
 $f = fopen(&#39;data&#39;,&#39;w&#39;);//打开文件
 fwrite($f,&#39;Hello PHP&#39;);//写入数据
 fclose($f);//关闭文件
 echo &#39;OK&#39;;
 //windows环境暂时不考虑权限问题

After successful writing, you can see "OK" on the page

Next read the data in the data file Data

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2015/6/29
 * Time: 17:05
 */
header("Content-type: text/html; charset=utf-8");

//read data
$f = fopen(&#39;data&#39;,&#39;r&#39;);
$content = fgets($f);
echo $content;
fclose($f);

How to read if there are multiple rows of data?

Method 1 while:

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2015/6/29
 * Time: 17:05
 */
header("Content-type: text/html; charset=utf-8");
$f = fopen(&#39;data&#39;,&#39;r&#39;);
//读取多行数据 while
while(!feof($f)){//feof() 函数检测是否已到达文件末尾
  $content = fgets($f);
  echo $content;
}
fclose($f);

Method 2file_get_contents():

echo file_get_contents(&#39;data&#39;);

The above is all the contents of all operations on PHP files. For operations Students who are not familiar with PHP files should practice more! !

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