Phar::offsetUnset
(PHP >= 5.3.0, PECL phar >= 1.0.0)
Phar::offsetUnset — remove a file from a phar
說明
$offset
)Note:
此方法需要 將 php.ini 中的 phar.readonly 設為 0 以適合 Phar 對象。否則, 將拋出PharException.
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.
參數
-
offset -
The filename (relative path) to modify in a Phar.
回傳值
如果成功則回傳 TRUE，失敗則回傳 FALSE。
錯誤/例外
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.
範例
Example #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;
}
?>
參見
- Phar::offsetExists() - determines whether a file exists in the phar
- Phar::offsetGet() - Gets a PharFileInfo object for a specific file
- Phar::offsetSet() - set the contents of an internal file to those of an external file
- Phar::unlinkArchive() - Completely remove a phar archive from disk and from memory
- Phar::delete() - Delete a file within a phar archive
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