Eloquent Dynamic Modules w/ Relationship Support - eval() way

eloquent_dym_modules.php

<?php

$model_confg = array(
    "Models" =>
        array(array('className'=> "Books", 'classTable'=>'books', "fillable" => "book_name"), array('className'=> "Authors", 'classTable'=>'authors', "fillable" => "")),
    "Relations" =>
    array("Authors" =>
    array("books" =>
        array("function" => function( $self ) {
            return $self->belongsToMany('Books');
        }
        ))));

function eloquent_dym_models($models)
{
    $eval = "";
    foreach ($models as $key => $value) {

        $recordType = $value['className'];
        $recordTable = $value['classTable'];
        $f = $value["fillable"];

        $eval .= "class $recordType extends Illuminate\Database\Eloquent\Model {

    protected \$table = '$recordTable';

    protected \$fillable = [$f];

    public function __call(\$method, \$parameters) {

    \$class_name = class_basename( \$this );

    if(array_key_exists(\$class_name, \$parameters[0])) {
    \$func = \$parameters[0][\$class_name][\$method]['function'];
    return \$func(\$this);
    }

    return parent::__call(\$method, \$parameters);

    }

    }";

    }

    eval($eval);
}

eloquent_dym_models($model_confg['Models']);

$authors = Authors::find(1);


$data['authors'] = $authors->toJson();
$data['books'] = $authors->books($model_confg['Relations'])->get()->toJson();

?>