PHP Function Is_Writable
The php function is_writable is a useful tool for checking whether files are writable. It can also be used to check whether a directory is writable. In this article, we will look at how to use the is_writable function in PHP and some examples of how it can be used.
The is_writable function accepts a single parameter which is the name of the file that you want to check for write ability. It will return TRUE if the filename exists and is writable. The filename may be a directory name which allows you to check for writeability of a directory. Note that the is_writable function does not take into account safe mode limitations and it may return false for non-existent files. The results of the is_writable function are cached, so it is recommended that you clear the statcache() function after using this function.
The is_writable function is one of several useful tools for checking file permissions in PHP. Other functions include the file_exists(), is_file(), and is_readable(). By using these tools, you can ensure that your code is protected against security risks and will run smoothly on various web servers. We hope you have found this article useful and that it has helped you to understand how the php function is_writable works. Please feel free to comment below if you have any questions or suggestions.