In PHP, we can delete any file using unlink() function. The unlink() function accepts one argument only: file name. It is similar to UNIX C unlink() function.
PHP unlink() generates E_WARNING level error if file is not deleted. It returns TRUE if file is deleted successfully otherwise FALSE.
Syntax
bool unlink ( string $filename [, resource $context ] )
$filename represents the name of the file to be deleted.
Output