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In PHP, all files under the directory are deleted by recursive implementation. , there is a need for friends to refer to the next.
Recently encountered a real problem, you need to clear all the files under the directory and empty the database. Emptying the database is easy, but how do you recursively delete all the files in a directory? So went to the Internet to study the following information, coupled with their own pondering the solution of the problem.
Paste the code First:
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<?phpfunctiondelFile($dirName){ if($handle= opendir("$dirName")){ while(($item= readdir($handle))!=false){ if($item!="."&& $item!="..") { if( is_dir( "$dirName/$item") ) { delFileUnderDir( "$dirName/$item"); } elseunlink("$dirName/$item"); } } closedir($handle);}?><?php delFile(‘/home/sources‘);?> |
Let's start by explaining several functions:
Opendir (): function opens a directory handle that can be used by Closedir (), Readdir (), and Rewinddir ().
If successful, the function returns a directory stream, otherwise it returns false and an error. You can hide the output of the error by adding "@" before the function name. For example [email protected] Opendir ("image");
Readdir (): Returns the entry in the directory handle opened by the Opendir function, in order to return the file names in the folder, in the order in which they were sorted by the file system.
Id_dir (): detects if the parameter file is a directory, or True if it is returned.
Un_link (): That is, delete the development file.
So the program executes the idea: the function calls the home directory, and then sequentially detects whether each file is a directory, and if it is a directory, recursively calls the function and deletes files that are not directories until all the files are traversed.
This program only implements the deletion of the contents of the folder, and does not delete the folder itself, if you want to achieve this purpose, plus the following code:
RmDir ($dirName);
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