PharData::offsetUnset
(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 2.0.0)
PharData::offsetUnset — Remove a file from a tar/zip archive
说明
   PharData::offsetUnset
    ( string 
  $offset
   ) : boolThis is an implementation of the ArrayAccess interface allowing direct manipulation of the contents of a tar/zip 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 the tar/zip archive. 
返回值
   成功时返回 TRUE, 或者在失败时返回 FALSE。
  
错误/异常
Throws PharException if there are any problems flushing changes made to the tar/zip archive to disk.
范例
Example #1 A PharData::offsetUnset() example
<?php
$p = new PharData('/path/to/my.zip');
try {
    // deletes file.txt from my.zip by calling offsetUnset
    unset($p['file.txt']);
} catch (Exception $e) {
    echo 'Could not delete file.txt: ', $e;
}
?>