- basename – It returns trailing name component of path
- chgrp – It can be used to change file group
- chmod – It can be used to change file permission
- chown – It can be used to change file ownership
- clearstatcache – It can be used to clears file status cache
- copy – It can be used to copy file
- delete – Check unlink() or unset()
- dirname – It returns parent directory’s path
- disk_free_space – It returns available space on filesystem or disk partition
- disk_total_space – It returns the total size of a filesystem or disk partitio
- diskfreespace – Its an alias of disk_free_space()
- fclose – It closes an open file pointer
- feof – It checks for end-of-file on a file pointer
- fflush – It flushes the output to a file
- fgetc – It returns character from file pointer
- fgetcsv – It returns line from file pointer and parse for CSV fields
- fgets – It returns line from file pointer
- fgetss – It returns line from file pointer and strip HTML tags
- file_exists – It checks whether a file or directory exists
- file_get_contents – It reads entire file
- file_put_contents – It writes a string to a file
- file – It reads entire file into an array
- fileatime – It returns last access time of file
- filectime – It returns inode change time of file
- filegroup – It returns file group
- fileinode – It returns file inode
- filemtime – It returns file modification time
- fileowner – It returns file owner
- fileperms – It returns file permissions
- filesize – It returns file size
- filetype – It returns file type
- flock – It can be used to lock the file
- fnmatch – Match filename against a pattern
- fopen – It opens file or URL
- fpassthru – It outputs all remaining data on a file pointer
- fputcsv – It format line as CSV and write to file pointer
- fputs – Its an alias of fwrite() and writes to a file
- fread – It can be used to read the content from a file
- fscanf – It parses input from a file according to a format
- fseek – It seeks on a file pointer
- fstat – It returns information about a file using an open file pointer
- ftell – It returns the current position of the file pointer
- ftruncate – It truncates a file to a given length
- fwrite – It writes the string to a file
- glob – It finds pathnames matching a pattern
- is_dir – It checks whether the filename is a directory
- is_executable – It checks whether the filename is executable
- is_file – It checks whether the filename is a regular file
- is_link – It checks whether the filename is a symbolic link
- is_readable – It checks whether the file exists and is readable
- is_uploaded_file – It checks whether the file was uploaded via HTTP POST
- is_writable – It checks whether the filename is writable
- is_writeable – Its an Alias of is_writable() and checks whether the filename is writable
- lchgrp – It changes group ownership of symlink
- lchown – It changes user ownership of symlink
- link – It creates a hard link
- linkinfo – It returns information about a link
- lstat – It returns information about a file or symbolic link
- mkdir – It can be used to create directory
- move_uploaded_file – It moves an uploaded file to a new location
- parse_ini_file – It parses a configuration file
- parse_ini_string – It parse a configuration string
- pathinfo – It returns information about a file path
- pclose – It closes process file pointer
- popen – It opens process file pointer
- readfile – It outputs a file
- readlink – It returns the target of a symbolic link
- realpath_cache_get – It returns realpath cache entries
- realpath_cache_size – It returns realpath cache size
- realpath – It returns canonicalized absolute pathname
- rename – It renames a file or directory
- rewind – It rewinds the position of a file pointer
- rmdir – It can be used to remove a directory
- set_file_buffer – Its an alias of stream_set_write_buffer()
- stat – It returns information about a file
- symlink – It creates a symbolic link
- tempnam – It create file with unique file name
- tmpfile – It creates a temporary file
- touch – It sets access and modification time of file
- umask – It changes file permissions of file
- unlink – It deletes the file
Beginners' Guide