Detailed explanation of methods and examples of php file operation

墨辰丷
Release: 2023-03-29 11:04:01
Original
3458 people have browsed it

本篇文章主要介绍php文件操作的方法及实例详解,感兴趣的朋友参考下,希望对大家有所帮助。

一、fstat函数:显示文件的所有信息

$file_path = "test.php";
if($fp=fopen($file_path,"a+")){
  $file_info=fstat($fp);
  echo "<pre class="brush:php;toolbar:false">";
  print_r($file_info);
  echo "
"; echo "文件大小为".$file_info['size']; echo "文件上次访问时间".date("Y-m-d H:i:s",$file_info['mtime']); } fclose($fp); //一定要关闭
Copy after login

  二、文件读取:

//第一种:
$con = fread($fp,filesize($file_path));
$con = str_replace("\r\n","<br>",$con);
echo "文件内容是".$con;
//第二种:将文件一下全部读取
$con = file_get_contents($file_path);
$con = str_replace("\r\n","<br>",$con);
echo "文件内容是".$con;
//第三种:一段一段读取
$buffer = 1024; 
//为了下载的安全,最好使用文件字节读取计数器
$file_count = 0;
//feof用于判断文件是否读取到文档尾
while(!feof($fp) && ($file_size-$file_count>0)){
$file_data = fread($fp,$buffer);
//统计读了多少个字节
$file_count+$buffer;
echo $file_data;  
}
Copy after login

  三、写入文件:

 //1、传统方法写入文件
  $file_path = "test.txt";
  if(file_exists($file_path)){
    $fp = fopen($file_path,"a+");
    //打开方式:a+是追加内容。w+是覆盖原来的。
    $con = "Hello!\r\n";
    fwrite($fp,$con);
    echo "添加成功!";
  }else{
    echo "文件不存在";
  }
  fclose($fp);
  //2、第二种方法写入文件
  $file_path= "test.txt";
  $con = "北京你好!\r\n";
  file_put_contents($file_path,$con,FILE_APPEND);
  echo "成功";
Copy after login

  四、文件操作的应用:

//可以操作ini文件。将服务器的配置写在ini文件中,再对其进行操作。
  dbc.ini
  host=192.168.0.1
  admin=admin
  password=123456  
demo.php
  <?php
    $con = parse_ini_file("dbc.ini");
    print_r($con);  
    ?> 
//将ini文件中的数据以数组形式读出,可以对其进行操作。
Copy after login

  五、拷贝文件:

if(!copy("E:\\test.txt","D:\\1.txt")){
  echo "fail";
}else{
  echo "success";
}
Copy after login

  六、创建文件

  创建文件夹:

//$path = "E:\\happy"; //文件夹路径
$path = "E:\\happy\aaa\bbb"; //多级文件夹
if(!is_dir($path)){
  if(mkdir($path,0777,true)){
    echo "success";
  }else{
    echo "fail";
  }
}else{
  echo "文件夹已存在";
}
Copy after login

  创建文件:

$file_path = "E:\\happy.txt";
$fp = fopen($file_path,"w+");
fwrite($fp,"hello");
fclose($fp);
Copy after login

  七、删除文件:

  删除文件夹:

$path = "E:\\happy\aaa\bbb"; //多级文件夹
if(rmdir($path)){
  echo "success";
}
//rmdir只能删除空文件夹,文件夹下有文件或目录均不能删除。
Copy after login

删除文件:

$file_path = "E:\\happy.txt";
if(is_file($file_path)){
  if(unlink($file_path)){
    echo "success";
  }else{
    echo "fail";
  }
}else{
  echo "文件不存在";
}
Copy after login

总结:以上就是本篇文的全部内容,希望能对大家的学习有所帮助。

相关推荐:

php 实现读取输出其他文件的方法

php实现求今天、昨天、明天时间戳的方法

php字符串操作针对负值的判断实例分析

The above is the detailed content of Detailed explanation of methods and examples of php file operation. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!