Tells whether the given file is a regular file.
Path to the file.
Returns TRUE if the filename exists and is a regular file, FALSE
var_dump(is_file('a_file.txt')) . "\n";
var_dump(is_file('/usr/bin/')) . "\n";
The above example will output:
The results of this
function are cached. See clearstatcache() for
As of PHP 5.0.0 this function
can also be used with some URL wrappers. Refer to
Appendix O, List of Supported Protocols/Wrappers for a listing of which wrappers support
stat() family of functionality.