PHP文件操作方法汇总

时间:2022-05-14 14:15:14

在data文件中写入数据:

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

写入成功后可以在页面看到“OK”

接下来读取data文件里的数据

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<?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('data','r');
$content = fgets($f);
echo $content;
fclose($f);

如果有多行数据该怎么读取?

方法一 while:

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

方法二 file_get_contents():

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echo file_get_contents('data');

以上所述就是本文的全部内容了,希望大家能够喜欢。