DJ Mike's Tutorials: PHP

Filesystem Functions

basename

Returns filename component of path

Format:

basename("file.txt");

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()

Reads entire file into an array

file_exists()

Checks whether a file or directory exists

Format:

file_exists("file.txt");

file_get_contents()

Reads entire file into a string

file_put_contents()

Write a string to a file

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

include()

Includes one file into another. Issues warning if file is not fund.

Format:

include("file_path.php");

is_dir()

Tells whether the filename is a directory

is_executable()

Tests if file is executable.

Format:

is_executable("file.php");

is_file()

Tells whether the filename is a regular file

Format:

is_file("file.txt")

is_link

Tells whether the filename is a symbolic link

is_readable()

Tells whether the filename is readable

Format:

is_readable("file.php");

is_uploaded_file

Tells whether the file was uploaded via HTTP POST

is_writable()

Tells whether the filename is writable

Format:

is_writable("file.php");

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

pathinfo()

Returns an array containing directory name, file name and extension.

Format:

pathinfo(file.txt);

pclose

Closes process file pointer

popen

Opens process file pointer

readfile

Outputs a file

readlink

Returns the target of a symbolic link

realpath

Returns canonicalized absolute pathname

rename

Renames a file or directory

require()

Includes one file into another. Halts execution of script if file is not found.

Format:

require("file_path.php");

rewind

Rewind the position of a file pointer

rmdir

Removes directory

set_file_buffer

Alias of stream_set_write_buffer

stat

Gives information about a file

symlink

Creates a symbolic link

tempnam

Create file with unique file name

tmpfile

Creates a temporary file

touch

Sets access and modification time of file

umask

Changes the current umask

unlink

Deletes a file

Created by DJ Mike from Santa Barbara