Phar::offsetUnset
(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL phar >= 1.0.0)
Phar::offsetUnset — Remove a file from a phar
说明
注意:
此方法需要 将 php.ini 中的
phar.readonly设为0以适合 Phar 对象. 否则, 将抛出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.
参数
-
localName -
The filename (relative path) to modify in a Phar.
返回值
没有返回值。
错误／异常
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.
示例
示例 #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;
}
?>参见
- 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() - 删除 phar 档案中的一个文件
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