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# Phar::offsetUnset

(no version information, might be only in CVS)

Phar::offsetUnset -- remove a file from a phar

## Beschreibung

bool Phar::offsetUnset ( string offset )

This is an implementation of the ArrayAccess interface allowing direct manipulation of the contents of a Phar archive using array access brackets. offsetUnset is used for deleting an existing file, and is called by the unset() language construct.

## Parameter Liste

`offset`

  The filename (relative path) to modify in a Phar.

## Rückgabewerte

Gibt bei Erfolg `TRUE` zurück, im Fehlerfall `FALSE`.

## Errors/Exceptions

if phar.readonly is `1`, BadMethodCallException is thrown, as modifying a Phar is only allowed when phar.readonly is set to `0`. Throws PharException if there are any problems flushing changes made to the Phar archive to disk.

## Beispiele

Beispiel 1. A Phar::offsetUnset() example

`<?php $p = new Phar('/path/to/my.phar', 0, 'my.phar'); try { // deletes file.txt from my.phar by calling offsetUnset unset($p['file.txt']); } catch (Exception $e) { echo 'Could not delete file.txt: ', $e; } ?>`

## Siehe auch

Phar::offsetExists()
Phar::offsetGet()
Phar::offsetSet()

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