/** * @author Funsion Wu * @abstract SPL使用案例,全国首发,技术分享,欢迎转帖 */class Dir extends RecursiveDirectoryIterator { const CHILD_FIRST = RecursiveIteratorIterator::CHILD_FIRST ; const LEAVES_ONLY = RecursiveIteratorIterator::LEAVES_ONLY ; const SELF_FIRST = RecursiveIteratorIterator::SELF_FIRST ; /* ideas:将Dir类设置为不变类,无状态类 */ PRivate static function getDirIterator( $dir, $mode=self::LEAVES_ONLY ) { if( !file_exists($dir) ){ exit ; } $dirIterator = new RecursiveDirectoryIterator($dir); $objIterator = new RecursiveIteratorIterator( $dirIterator, $mode ); return $objIterator; } /** * 递归的删除目录 + ----------------------------------------------------- + * @param $dir 要删除的目录 * @param $delSelf 决定删除目录or清空目录,默认删除目录 */ public static function delDir( $dir, $delSelf=true ) { $dirIterator = self::getDirIterator($dir, self::CHILD_FIRST); foreach ( $dirIterator as $file ) { if ( $file->isDir() ) { @ rmdir( $file->getRealPath() ); }else{ @ unlink( $file->getRealPath() ); } } if( $delSelf ) { @ rmdir($dir); } } /** * 递归的列出目录,遍历目录 + -------------------------- + * @param $dir 要操作的目录 */ public static function listDir ( $dir ) { $dirIterator = self::getDirIterator( $dir, self::SELF_FIRST ); foreach ( $dirIterator as $file ) { $filepath = str_replace('//' , '/' , $file->getPath() ); $deep = substr_count( $filepath , '/' ); if( $file->isDir() ) { $str .= '<div style="color:blue;margin-left:'. 35*$deep .'px"> + ' ; $str .= $file->getBasename() .'</div>' ; }elseif( $file->isFile() ){ $str .= '<div style="margin-left:'. 35*$deep .'px">' . $file->getBasename() .'</div>'; } } return $str ; } /** * 统计目录的信息(总字节数,文件数,目录数) + -----------------------------=----------- + * @param $dir 要操作的目录 * @return 由目录信息组成的数组 */ public static function countDir( $dir ) { $countDir = $countFiles = $size = 0 ; $dirIterator = self::getDirIterator( $dir, self::SELF_FIRST ); foreach ( $dirIterator as $file ) { if( $file->isDir() ) { $countDir++ ; }elseif( $file->isFile() ){ $countFiles++ ; $size += $file->getSize() ; } } return array( 'countDir'=>$countDir, 'countFiles'=>$countFiles, 'size'=>$size.' Byte' ); } /** * 递归的创建目录 + -------------------- + * @param $dir 要创建的目录 * @param $mode 所创建目录的读写权限 */ public static function makeDir( $dir, $mode=0644 ) { return mkdir( $dir, $mode, true ); }}/* ========================== 调用方法 =========================== */// Dir::delDir('./need_del_dir');// echo Dir::listDir('tools');// var_dump( Dir::countDir('tools') );// Dir::makeDir( 'aaa/ccc/ddd/eee/fff' );
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