PHP Filesystem functions
F
fclose()
The PHP fclose() function closes an open file handle.
file_exists()
The PHP file_exists() function checks whether a file or directory exists.
file_get_contents()
The PHP file_get_contents() function reads the entire file or URL into a string.
file_put_contents()
The PHP file_put_contents() function writes data to a file.
fopen()
The PHP fopen() function opens a file or URL and returns a file handle.
fread()
The PHP fread() function reads a specified number of bytes from an open file pointer.
fwrite()
The PHP fwrite() function writes data to an open file pointer.
I
is_dir()
The PHP is_dir() function checks whether a path is a directory.
is_file()
The PHP is_file() function checks whether a path is a regular file.
U
unlink()
The PHP unlink() function deletes a file.