streamWrapper::unlink
(PHP 5, PHP 7, PHP 8)
streamWrapper::unlink — Delete a file
说明
This method is called in response to unlink().
注意:
In order for the appropriate error message to be returned this method should not be defined if the wrapper does not support removing files.
参数
path-
The file URL which should be deleted.
错误／异常
调用此方法失败将给出
E_WARNING（未实现）。
注释
注意:
当合法的上下文传递给调用函数时，属性 streamWrapper::$context 会被改变。