Phar::offsetUnset()

(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 1.0.0)

Remove a file from a phar

说明

publicPhar::offsetUnset(string $offset): bool

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 is1,BadMethodCallException is thrown, as modifying a Phar is only allowed when phar.readonly is set to0. Throws PharException if there are any problems flushing changes made to the Phar archive to disk.

范例

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