(PHP 4 >= 4.0.3, PHP 5, PHP 7) Tells whether the file was uploaded via HTTP POST

(PHP 4, PHP 5, PHP 7) Parse a configuration file

(PHP 4, PHP 5, PHP 7) Closes an open file pointer

(PHP 4, PHP 5, PHP 7) Portable advisory file locking

(PHP 4, PHP 5, PHP 7) Sets access and modification time of file

(PHP 4, PHP 5, PHP 7) Tells whether the filename is executable

(PHP 4, PHP 5, PHP 7) Create a hard link bool

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Find pathnames matching a pattern

(PHP 4, PHP 5, PHP 7) Rewind the position of a file pointer

(PHP 5, PHP 7) Write a string to a file int file_put_contents