Construct a directory using glob

# GlobIterator::__construct

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

GlobIterator::__construct — Construct a directory using glob

### Beschreibung

public function GlobIterator::__construct(string `$pattern`, int `$flags` = FilesystemIterator::KEY_AS_PATHNAME | FilesystemIterator::CURRENT_AS_FILEINFO)

Constructs a new directory iterator from a glob expression.

### Parameter-Liste

`pattern`

  A glob() pattern.

`flags`

  Option flags, the flags may be a bitmask of the FilesystemIterator constants.

### Fehler/Exceptions

Throws an UnexpectedValueException if the `directory` does not exist.

Throws a ValueError if the `directory` is an empty string.

### Changelog

Version | Beschreibung
--- | ---
8.0.0 | Now throws a ValueError if `directory` is an empty string; previously it threw a RuntimeException.

### Beispiele

Beispiel #1 GlobIterator example

    <?php
    $iterator = new GlobIterator('*.dll', FilesystemIterator::KEY_AS_FILENAME);

    if (!$iterator->count()) {
        echo 'No matches';
    } else {
        $n = 0;

        printf("Matched %d item(s)\r\n", $iterator->count());

        foreach ($iterator as $item) {
            printf("[%d] %s\r\n", ++$n, $iterator->key());
        }
    }
    ?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

    Matched 2 item(s)
    [1] php5ts.dll
    [2] php_gd2.dll

### Siehe auch

- DirectoryIterator::__construct() - Constructs a new directory iterator from a path
- GlobIterator::count() - Get the number of directories and files
- glob() - Findet Dateinamen, die mit einem Muster übereinstimmen

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