File types and attributes for PHP file operations

1. File type
Based on Linux, in Windows you can only get three types: file, dir or unknown
Under Linux/Unix, there are seven types: block, char, dir, fifo, file, link, unknown
     filetype ("Directory or file name") Get the file type
Is_dir -- Determine whether the given file name is a directory
Is_executable -- Determine whether the given file name is executable
Is_file -- Determine whether the given file name is a normal File l IS_LINK - Determine whether the given file name is a symbol connection
IS_READABLE -determine whether the given file name can be read
is_uploaded_file -determine whether the file is

. Whether you can write. 2. The attributes of the file

file_exists (); whether the file exists

filesize ();

file size

is_readable ();

; Whether the file can be read _ is_writeable (); whether the file can be written filectime (); file creation time filemtime (); Modification time fileactime(); The above introduces the file types and attributes of PHP file operations, including the content. I hope it will be helpful to friends who are interested in PHP tutorials.