SQLite PHP "unable to open database file"?

Question

PHP

When trying to work with SQLite from PHP, I get the error "unable to open database file". In the configs, I registered sqlite3.extension_dir and set permissions for this folder to 777 and the files inside it.
The code that gives the error:

$_db = new SQLite3($_config['database'].'.sqlite3');

Answer 1

var_dump(is_file($_config['database'].'.sqlite3'), $_config['database'].'.sqlite3');

if false - correct the path to the file (it will be displayed in the second line)