## 例

`

     resource opendir ( string $path [, resource $context ] )

`

## 説明

Opens up a directory handle to be used in subsequent closedir(), readdir(), and rewinddir() calls.

## 戻り値

Returns a directory handle resource on success, or FALSE on failure. If path is not a valid directory or the directory can not be opened due to permission restrictions or filesystem errors, opendir() returns FALSE and generates a PHP error of level E_WARNING. You can suppress the error output of opendir() by prepending '@' to the front of the function name.