PHP Unlink and rmdir delete all files in directory and directory _php tutorial

Source: Internet
Author: User
deleting files and directories in PHP is actually very simple as long as two functions one is unlink a rmdir function, if you want to implement delete directories and directories under the file we need to use the recursive operation.

Function code: Delete Only the files under the specified directory, not the directory folder.

The code is as follows Copy Code

Class Shanchu {
All files in the loop directory
function Delfileunderdir ($dirName = ": /smarty/templates/templates_c ")
{
if ($handle = Opendir ("$dirName")) {
while (false!== ($item = Readdir ($handle))) {
if ($item! = "." && $item! = "...") {
if (Is_dir ("$dirName/$item")) {
Delfileunderdir ("$dirName/$item");
} else {
if (unlink ("$dirName/$item")) echo "successfully deleted file: $dirName/$item
n ";
}
}
}
Closedir ($handle);
}
}
}
?>

Suppose you need to delete all the files in the directory named "Upload" (but without deleting the directory folder), you can do this with the following code:

Delfileunderdir (' upload ');
?>

PHP Delete all directories

code as follows copy code


function deltree ($pathdir)
{
echo $pathdir;//Used for debugging
if (Is_empty_dir ($pathdir))//If it is empty
{
RmDir ($pathdir);//delete directly
}
Else
{//otherwise read this directory except for. and. Outside
$d =dir ($pathdir);
while ($a = $d->read ())
{
if (Is_file ($pathdir. ' /'. $a) && ($a! = '. ') && ($a! = ' ... ')) {unlink ($pathdir. ') /'. $a);}
If it's a file, delete it directly.
if (Is_dir ($pathdir. ' /'. $a) && ($a! = '. ') && ($a! = ' ... '))
{//If the directory
if (!is_empty_dir ($pathdir. ' /'. $a))//Is empty
{//If not, call itself, but the original path + his subordinate directory name
deltree ($pathdir. ' /'. $a);
}
if (Is_empty_dir ($pathdir. ' /'. $a))
{//If it is empty, delete it directly
RmDir ($pathdir. ' /'. $a);
}
}
}
$d->close ();
echo "must first delete all files in the directory";//I use it for debugging
}
}
function Is_empty_dir ($pathdir)
{
Determine if the directory is empty
$d =opendir ($pathdir);
$i = 0;
while ($a =readdir ($d))
{
$i + +;
}
Closedir ($d);
if ($i >2) {return false;}
else return true;
}


PHP Delete all files in directory and directory

The code is as follows Copy Code

Loop Delete directory and file functions
function Deldirandfile ($dirName)
{
if ($handle = Opendir ("$dirName")) {
while (false!== ($item = Readdir ($handle))) {
if ($item! = "." && $item! = "...") {
if (Is_dir ("$dirName/$item")) {
Deldirandfile ("$dirName/$item");
} else {
if (unlink ("$dirName/$item")) echo "successfully deleted file: $dirName/$item
n ";
}
}
}
Closedir ($handle);
if (RmDir ($dirName)) echo "Successfully deleted directory: $dirName
n ";
}
}

Suppose you need to delete a sibling directory named "upload" that is all the files in this directory, which you can do with the following code:

Deldirandfile (' upload ');
?>


http://www.bkjia.com/PHPjc/444647.html www.bkjia.com true http://www.bkjia.com/PHPjc/444647.html techarticle deleting files and directories in PHP is actually very simple as long as two functions one is unlink a rmdir function, if you want to implement delete directories and directories under the file we need to use the recursive operation. ...

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