(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 1.0.0)
Phar::offsetUnset — Remove a file from a phar
$offset
) : boolNote:
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.
offsetThe filename (relative path) to modify in a Phar.
成功时返回 TRUE， 或者在失败时返回 FALSE。
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.
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;
}
?>