PHP File System Functions

basename

Returns trailing name 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 a parent directory's path

disk_free_space

Returns available space on filesystem or disk partition

disk_total_space

Returns the total size of a filesystem or disk partition

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

Returns the current position of the file read/write pointer

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 a file exists and 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

lchgrp

Changes group ownership of symlink

lchown

Changes user ownership of symlink

link

Create a hard link

linkinfo

Gets information about a link

lstat

Gives information about a file or symbolic link

mkdir

Makes directory

move_uploaded_file

Moves an uploaded file to a new location

parse_ini_file

Parse a configuration file

parse_ini_string

Parse a configuration string

pathinfo

Returns information about a file path

pclose

Closes process file pointer

popen

Opens process file pointer

readfile

Outputs a file

readlink

Returns the target of a symbolic link

realpath_cache_get

Get realpath cache entries

realpath_cache_size

Get realpath cache size

realpath

Returns canonicalized absolute pathname

rename

Renames a file or directory