append

is used to copy/append file

basename

Return the file part of a pathame

close

Close a file

compile

Use to compile a file.

copy

Use to copy file.

cp

Copy a file.

ct

Get the value for a code.

dir

Use to list the file of a directory.

dirname

Return the file part of a pathame

exec

Use to exec file.

exif_​read

Read exif information from a file

extention

Return the length of an expression.

filename

Return the filename.

generate

Used to generate a file.

getchar

Get a character

getline

Get a line

include

This function is used to include a file.

lock

Lock a file or Open and lock a file

mkdir

Use to create a directory.

mv

Move/rename a file.

open

Open a file

puts

Put a string

read

Read a file.

realpath

Check is a file is valid.

remove

Use to remove directories and files.

rmdir

Use to remove directories.

seek

Move the read/write file offset to a specified byte within a ...

sendfile

Send a file.

size

Use to size a file

stat

Use to stat a file.

ungetchar

Un-Get a character

valid

Use to validate a file or a directory.

write

Write in a file.

xls

Create a new Excel file.