PHP deletes the relevant file instances in the specified directory

Source: Internet
Author: User

The code is as follows


<?php

Delete an illegal file under a specified folder

function My_del ($dir)


 {


if (Is_dir ($dir)) {


//Open the specified folder


if ($handle = Opendir ($dir))


        {


while (false!== ($file = Readdir ($handle))


            {


if ($file!== '. ' &amp;&amp; $file!== ' ... ')


                 {


My_del ($dir. '/'. $file);


                 }


            }


$res = Closedir ($handle);


        }


}else{


//delete all files except the picture


$avatararr = Array (' 180x180.jpg ', ' 30x30.jpg ', ' 45x45.jpg ', ' 90x90.jpg ');


$ex = explode ('/', $dir);


$endex = end ($ex);


if ((Strripos ($endex, '. jpg ') = false) | | (Substr ($endex,-4)!= '. jpg ') {


//Filter by name


@unlink ($dir);


} else {


//filter
by document material content

$info = @getimagesize ($dir);


if (! $info | | | $info [2]!=2) {


@unlink ($dir);


                }


        }


    }


 }

$dir = ' d:/xampp/htdocs/www/avatar001/12/47/';
My_del ($dir);

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