Laravel Slug Attribute Simple and Best

Sluggable.php

<?php

public function setSlugAttribute($value)
{
	$slug     = str_slug($value);
	$original = $slug;
	$count    = 2;

	while (static::whereSlug($slug)->exists()) {
		$slug = "{$original}-" . $count++;
	}

	$this->attributes['slug'] = $slug;
}