Phar::offsetUnset
(PHP >= 5.3.0, PECL phar >= 1.0.0)
Phar::offsetUnset — remove a file from a phar
说明
$offset
)Note:
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
-
offset -
The filename (relative path) to modify in a Phar.
返回值
成功时返回 TRUE ， 或者在失败时返回 FALSE 。
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.
范例
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 ;
}
?> 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() - Delete a file within a phar archive