How to get the basic properties of a file by PHP

This article introduces the relevant knowledge of "how to obtain the basic attributes of files by PHP". In the operation of actual cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

1. Filesize ($filename) returns the specified file size.

The number of bytes of the file size is returned if successful, or FALSE if it fails.

2. Filetype ($filename) returns the specified file or directory type.

If successful, one of the following seven possible values is returned:

Fifo

Char

Dir

Block

Link

File

Unknown

If it fails, FALSE is returned.

3. Fileperms ($filename) returns the permissions of the file or directory $filename.

If successful, permissions are returned numerically. If it fails, FALSE is returned.

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