PHP delete non-empty directory custom function_PHP tutorial

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 “成功删除文件： $dirName/$item
n”;
}
}
}
closedir( $handle );
if( rmdir( $dirName ) )echo “成功删除目录： $dirName
n”;
}
}
?>

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 “成功删除文件： $dirName/$item
n”;
}
}
}
closedir( $handle );
}
}

?>

function my_del_dir($directory)

{
if (is_dir($directory) == false)
{
exit("The Directory Is Not Exist!");
}
$handle = opendir($directory);
while (($file = readdir($handle)) !== false)
{
if ($file != "." && $file != "..")
{
is_dir("$directory/$file")?
my_del_dir("$directory/$file"):
unlink("$directory/$file");
}
}
if (readdir($handle) == false)
{
closedir($handle);
rmdir($directory);
}
}
?>

function DeleteDir($sourceDir){
$succeed = true;
if(file_exists($sourceDir)){
$objDir = opendir($sourceDir);
while(false !== ($fileName = readdir($objDir))){
if(($fileName != “.”) && ($fileName != “..”)){
chmod(“$sourceDir/$fileName”,0777);
if(!is_dir(“$sourceDir/$fileName”)){
if(!unlink(“$sourceDir/$fileName”)){
$succeed = false;
break;
}
}
else{
DeleteDir(“$sourceDir/$fileName”);
}
}
}
if(!readdir($objDir)){
closedir($objDir);
if(!rmdir($sourceDir)){
$succeed = false;
}
}
}
return $succeed;
}