PHP File stystem Functions

Function Description
basename() Returns trailing name component of path
chgrp() Changes file grouop
chmod() Changes file mode
chown() Changes file owner
clearstatcache() Clears file status cache
copy() Copies file
delete() Seek unlink or unset
dirname() Returns parent directory’s path
disk_free_space() Returns available space on file system or disk partition
disk_total_space() Returns the total size of a file system of disk partition
diskfreespace() Alias of disk_free_space
fclose() Close an open file pointer
feof() Tests for end-of-file on a file pointer
fflush() Flushes the output to a file
fgetc() Gets character form file pointer
fgetcsv() Gets line form file pointer and parse for csv fields
fgets() Get line form file pointer
fgetss() Gets line form 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 permission
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 a CSV and write to file pointer
fputs() Alias of write
fread() Binary-safe file read
fscanf() Parses input forma 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
ichgrp() Changes group ownership of symlink
ichown() Changes user ownership of symlink
link() Create a hard link
linkinfo() Gets information about a link
istat() 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_cacge_size() Get realpath cache size
realpath() Returns canonicalized absolute pathname
rename() Renames a file or directory
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 Creates 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

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