php question

basename -- Returns filename component of path

chgrp -- Changes file group

chmod -- Changes file mode

chown -- Changes file owner

clearstatcache -- Clears file status cache

copy -- Copies file

delete -- See unlink() or unset()

dirname -- Returns directory name component of path

disk_free_space -- Returns available space in directory

disk_total_space -- Returns the total size of a directory

diskfreespace -- Alias of disk_free_space()

fclose -- Closes an open file pointer

feof -- Tests for end-of-file on a file pointer

fflush -- Flushes the output to a file

fgetc -- Gets character from file pointer

fgetcsv -- Gets line from file pointer and parse for CSV fields

fgets -- Gets line from file pointer

fgetss -- Gets line from file pointer and strip HTML tags

file_exists -- Checks whether a file or directory exists

file_get_contents -- Reads entire file into a string

file_put_contents -- Write a string to a file

file -- Reads entire file into an array

fileatime -- Gets last access time of file

filectime -- Gets inode change time of file

filegroup -- Gets file group

fileinode -- Gets file inode

filemtime -- Gets file modification time

fileowner -- Gets file owner

fileperms -- Gets file permissions

filesize -- Gets file size

filetype -- Gets file type

flock -- Portable advisory file locking

fnmatch -- Match filename against a pattern

fopen -- Opens file or URL

fpassthru -- Output all remaining data on a file pointer

fputcsv -- Format line as CSV and write to file pointer

fputs -- Alias of fwrite()

fread -- Binary-safe file read

fscanf -- Parses input from a file according to a format

fseek -- Seeks on a file pointer

fstat -- Gets information about a file using an open file pointer

ftell -- Tells file pointer read/write position

ftruncate -- Truncates a file to a given length

fwrite -- Binary-safe file write

glob -- Find pathnames matching a pattern

is_dir -- Tells whether the filename is a directory

is_executable -- Tells whether the filename is executable

is_file -- Tells whether the filename is a regular file

is_link -- Tells whether the filename is a symbolic link

is_readable -- Tells whether the filename is readable

is_uploaded_file -- Tells whether the file was uploaded via HTTP POST

is_writable -- Tells whether the filename is writable

is_writeable -- Alias of is_writable()