How php views the permission settings of a file

This article mainly introduces "php how to view the permission settings of files". In the daily operation, I believe many people have doubts about how to view the permissions of files in php. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubts of "how to view the permissions of files in php". Next, please follow the editor to study!

In php, you can use the fileperms () function to view the permission settings of a file, which is used to obtain and return the permissions of a file or directory with the syntax "fileperms (filename)"; if successful, the permission settings of the file are returned digitally.

Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

In php, you can use the fileperms () function to view the permission settings of a file.

The fileperms ($filename) function returns permissions for a file or directory $filename. If successful, permissions are returned numerically. If it fails, FALSE is returned.

The output is as follows:

Note: there are three possible values for numbers that represent permissions. To set multiple permissions, you can use the following numbers to total:

1 = execute permission

2 = write permission

4 = read permission

Example:

5 = 4 + 1 = read + execute permission

6 = 4 + 2 = read + write permission

7 = 4 + 2 + 1 = read + write + execute permissions, that is, all permissions are provided

At this point, the study on "how to view the permission settings of php files" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!