удаление всех файлов за исключением того, что выполняется код удаления

прочитайте структуру класса, вы получите некоторые полезные функции

 <?php // this will call your given callback with the file or folder informations, so you can use your logic to delete/copy/move the file/folder // note: this is a recursive function $literator = new ipDirLiterator( "your/path/to/root/or/anyfolder/", // for getting root path, you can use $_SERVER["DOCUMENT_ROOT"] array( "file" => function( $file ) { // your callback to delete files if ( basename( $file["pathname"] ) !== basename( __FILE__ ) ) { unlink( $file["pathname"] ); } } ), true ); class ipDirLiterator { protected $basepath = false; protected $callbacks = false; protected $checked = array(); public function __construct( $basepath = false, $callbacks = false, $init = false ) { $this->basepath = ( $basepath ) ? realpath( $basepath ) : false; $this->callbacks = $callbacks; if ( $init ) { $this->literate(); } } public function literate( $dir = false ) { if ( !$this->basepath ) { return false; } if ( $dir === $this->basepath ) { return false; } if ( !$dir ) { $dir = $this->basepath; } $dir = realpath( $dir ); if ( strstr( $dir, basename( $this->basepath ) ) === false ) { return false; } if ( in_array( $dir, $this->checked ) ) { return false; } $this->checked[] = $dir; $items = new DirectoryIterator( $dir ); foreach( $items as $item ) { if ( $item->isDot() ) { if ( $item->getFilename() === ".." ) { $this->literate( dirname( $item->getPath() ) ); } $this->callback( "dot", $this->info( $item ) ); continue; } if ( $item->isFile() || $item->isLink() ) { $this->callback( "file", $this->info( $item ) ); } if ( $item->isDir() && !$item->isLink() ) { $this->literate( $item->getPathname() ); $this->callback( "dir", $this->info( $item ) ); } } } private function info( $item ) { $info = array( "filename" => $item->getFilename(), "extension" => pathinfo( $item->getFilename(), PATHINFO_EXTENSION ), "pathname" => $item->getPathname(), "path" => $item->getPath(), "readable" => (bool)$item->isReadable(), "writable" => (bool)$item->isWritable(), "executable" => (bool)$item->isExecutable(), "created_on" => $item->getCTime(), "last access" => $item->getATime(), "modified_on" => $item->getMTime(), "inode" => $item->getInode(), "permissions" => $item->getPerms(), "is_dir" => (bool)$item->isDir(), "is_dot" => (bool)$item->isDot(), "type" => $item->getType(), "group" => $item->getGroup(), "owner" => $item->getOwner(), "size" => $item->getSize() ); return $info; } private function callback( $callback = "file", $args = null ) { if ( $this->callbacks ) { if ( isset( $this->callbacks[$callback] ) ) { call_user_func( $this->callbacks[$callback], $args ); } } } } ?> 

Подробный пример:

 <?php /** * It will recursively go through the all directories and files under the directory you have given. * Here we are going to delete all the files order than 1 hour **/ /** * Path to the folder you want to process **/ $basepath = "any/path/to/files/or/folder/"; /** * Callbacks **/ $file_callback = function( $file /* information of current file in the loop */ ) { // your callback for files $modified_time = filemtime( $file["pathname"] ); $current_time = time(); $time_differnce = ( $current_time - $modified_time ); if ( $time_differnce > 3600 ) { unlink( $file["pathname"] ); } }; $folder_callback = function( $file /* information of current folder in the loop */ ) { // your callback for folders // proceess your folder here }; /** * Initialize the class **/ $literator = new ipDirLiterator( $basepath, array( "file" => $file_callback, "dir" => $folder_callback ) ); $literator->literate(); ?> 

Используйте что-то вроде этого:

 function delete_all($filename) { // files listed in this array will not being deleted $exceptions = array ( 'file1', 'file2', ... ); if(!in_array($filename, $exceptions)) { unlink($filename); } } // !!! attention !!! this will delete all files except those listed above // from this folder. Make sure you know what you are doing array_map('delete_all', glob("path/to/temp/*"));