PHP file system related functions

Directory function

chdir — change the directory

chroot — change the root directory

closedir — close the directory handle

dir — Return an instance of the Directory class

getcwd — get the current working directory

opendir — open the directory handle

readdir — Read entries from a directory handle

rewinddir — Rewind a directory handle

scandir — List files and directories in a specified path

FileSystem function

basename — Return the filename portion of a path

chgrp — Change the group to which the file belongs

chmod — Change the file mode

chown — Change the owner of the file

clearstatcache — Clear the file status cache

copy — Copy the file

delete — See unlink or unset

dirname — Return to the path The directory part

disk_free_space — Returns the free space in the directory

disk_total_space — Returns the total disk size of a directory

diskfreespace — Alias ​​for disk_free_space

fclose — Closes an open file pointer

feof — Tests whether the file pointer is End of file reached

fflush — Output buffered content to file

fgetc — Read characters from file pointer

fgetcsv — Read a line from file pointer and parse CSV fields

fgets — Read from file pointer Get a line

fgetss — Read a line from the file pointer and filter out HTML tags

file_exists — Check if a file or directory exists

file_get_contents — Read the entire file into a string

file_put_contents — Write a string File

file — Read the entire file into an array

fileatime — Get the last access time of the file

filectime — Get the inode modification time of the file

filegroup — Get the group of the file

fileinode — Get the inode of the file

filemtime — Get the file modification time

fileowner — Get the owner of the file

fileperms — Get the permissions of the file

filesize — Get the file size

filetype — Get the file type

flock — Easy consultation file locking

fnmatch — Match filenames with patterns

fopen — Open a file or URL

fpassthru — Output all remaining data at the file pointer

fputcsv — Format lines to CSV and write to the file pointer

fputs — Alias ​​for fwrite

fread — Read a file (safe for binary files)

fscanf — Format input from a file

fseek — Locate in a file pointer

fstat — Get file information through an open file pointer

ftell — Return the position of the file pointer read/write

ftruncate — truncate the file to the given length

fwrite — write to the file (safe for binary files)

glob — find the file path matching the pattern

is_dir — Determine whether the given file name is a directory

is_executable — Determine whether the given file name is executable

is_file — Determine whether the given file name is a normal file

is_link — Determine whether the given file name is a symbolic link

is_readable — Determines whether the given file name is readable

is_uploaded_file — Determines whether the file was uploaded via HTTP POST

is_writable — Determines whether the given file name 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 — Get information about a connection

lstat — Give information about a file or symbolic link

mkdir — Create a new directory

move_uploaded_file — Move the uploaded file to a new location

parse_ini_file — Parse a configuration file

parse_ini_string — Parse a configuration string

pathinfo — Return file path information

pclose — Close the process file pointer

popen — Open the process File pointer

readfile — Output a file

readlink — Return the target pointed to by the symbolic link

realpath_cache_get — Get realpath cache entries

realpath_cache_size — Get realpath cache size

realpath — Return the normalized absolute path name

rename — Rename Name a file or directory

rewind — rewind the position of the file pointer

rmdir — delete the directory

set_file_buffer — alias of stream_set_write_buffer

stat — give file information

symlink — establish a symbolic link

tempnam — Create a file with a unique file name

tmpfile — Create a temporary file

touch — Set the file access and modification time

umask — Change the current umask

unlink — Delete a file