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PHP创建/删除/复制文件夹、文件,
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PHP创建/删除/复制文件夹、文件,

Jun 13, 2016 am 08:40 AM
php create delete copy document folder

PHP创建/删除/复制文件夹、文件,

学习了PHP的文件编程,其中PHP自身提供了复制文件的函数(copy)。自己也写了一个功能差不多的复制图片的函数,以此在这里记录一下。
在说该函数之前,先介绍一下使用PHP创建/删除文件夹、文件等知识。
1.创建文件夹

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<&#63;php

 //使用 file_exists("d:/mydir") 或 is_dir("d:/mydir")判断该文件夹是否存在

 if(!file_exists("d:/mydir")) {

  if(mkdir("d:/mydir")) {

   echo "创建文件夹成功";

  }else{

   echo "创建文件夹失败";

  }

 } else {

  echo "该文件夹已存在";

 }

&#63;>

Copy after login

2.创建多级目录(上面所说的,只能创建一级目录)

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<&#63;php

 //使用 file_exists("d:/mydir") 或 is_dir("d:/mydir")判断该文件夹是否存在

 $path="d:/mydir/p/h/p/test";

 if(!file_exists($path)) {

  if(mkdir($path,0777,true)) {

   echo "创建文件夹成功";

  }else{

   echo "创建文件夹失败";

  }

 } else {

  echo "该文件夹已存在";

 }

&#63;>

Copy after login

3.删除文件夹

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<&#63;php

 //如果文件夹下有文件,或者目录,均不能删除成功

 if(rmdir("d:/mydir/p/h/p/test")) {

  echo "删除文件夹成功";

 } else {

  echo "删除文件夹成功";

 }

&#63;>

Copy after login

4.文件的创建

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<&#63;php

 //在d:/mydir目录下,创建一个文件并写入hello

 $file_path="d:/mydir2/test.txt";

 $fp=fopen($file_path,"w+");

   

 fwrite($fp,"hello,world");

 fclose($fp);

 echo "文件写入成功";

&#63;>

Copy after login

5.删除文件

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<&#63;php

 $file_path="d:/mydir2/test.txt";

 if(is_file($file_path)) {

  if(unlink($file_path)) {

   echo "删除成功";

  } else {

   echo "删除失败";

  }

 } else {

  echo "文件不存在";

 }

&#63;>

Copy after login

复制文件的函数:

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<&#63;php

 //PHP自身提供的copy文件函数:应用拷贝图片

 //copy("来源","地点")

 //$file_path=iconv("utf-8","gb2312","含中文路径");

 //将utf-8编码转为gb2312码

 /*if(!copy("C:\\bh.PNG","D:\\bh2.png")) {

  echo 'error';

 } else {

  echo 'ok';

 }*/

  

  

 //自制拷贝文件的函数

 function myCopyFunc($res, $des) {

  if(file_exists($res)) {

   $r_fp=fopen($res,"r");

     

   //定位

   $pos=strripos($des,"\\");

   $dir=substr($des,0,$pos);

   if(!file_exists($dir)) {

    //可创建多级目录

    mkdir($dir,0777,true);

    echo "创建目录成功<br/>";

   }

  

   $d_fp=fopen($des,"w+");

   //$fres=fread($r_fp,filesize($res));

  

   //边读边写

   $buffer=1024;

   $fres="";

   while(!feof($r_fp)) {

    $fres=fread($r_fp,$buffer);

    fwrite($d_fp,$fres);

   }

  

   fclose($r_fp);

   fclose($d_fp);

  

   echo "复制成功";

  } else {

   echo "源文件不存在";

  }

 }

  

 myCopyFunc("C:\\bh.PNG","D:\\PHPTest\\test\bh2.PNG");

 //myCopyFunc("C:\\bh.PNG","D:\\bh.PNG");

&#63;>

Copy after login

以上代码包含PHP文件编程中的文件读取与写入功能,希望对大家学习php程序设计有所帮助。

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