CI_Migration::find_migrations PHP Method

    public function find_migrations()
    {
        $migrations = array();
        // Load all *_*.php files in the migrations path
        foreach (glob($this->_migration_path . '*_*.php') as $file) {
            $name = basename($file, '.php');
            // Filter out non-migration files
            if (preg_match($this->_migration_regex, $name)) {
                $number = $this->_get_migration_number($name);
                // There cannot be duplicate migration numbers
                if (isset($migrations[$number])) {
                    $this->_error_string = sprintf($this->lang->line('migration_multiple_version'), $number);
                    show_error($this->_error_string);
                }
                $migrations[$number] = $file;
            }
        }
        ksort($migrations);
        return $migrations;
    }