public function col_full_name(string $col, $table = '', $escaped = false): ?string
  {
    return $this->language->col_full_name($col, $table, $escaped);
  }
public function col_full_name(string $col, $table = '', $escaped = false): ?string
  {
    return $this->language->col_full_name($col, $table, $escaped);
  }
public function col_full_name ( string $ col , $ table = '' , $ escaped = false ) : ? string { return $ this -> language -> col_full_name ( $ col , $ table , $ escaped ) ; }
Return column's full name.

```php
\bbn\x::dump($db->col_full_name("name", "table_users"));
// (string)  table_users.name
\bbn\x::dump($db->col_full_name("name", "table_users", true));
// (string) \`table_users\`.\`name\`
```

@param string $col The column's name (escaped or not)
@param string $table The table's name (escaped or not)
@param bool $escaped If set to true the returned string will be escaped
@return string | false
Return column s full name .