PHP file_exists () function use in detail

file_exists-checking whether a file or directory exists

Description
BOOL File_exists (String $filename)

Returns TRUE if the file or directory specified by filename is present, otherwise FALSE.

Instance

Instance One

<?php$filename = '/www/aa/to/foo.txt ', if (file_exists ($filename)) {echo "file $filename exists";} else {echo "file $ FileName does not exist ";}?" >

The output is:
File/www/aa/to/foo.txt already exists

Example Two

<?phpecho file_exists ("test.txt");? >

Use file_exists directly to return ture or false.