Does the Yii framework contain a function that can make a string usable in a URL or filename ?
For example: Health+%26+Safety+franchises
= health-safety-franchises
So something similar to: https://docs.djangoproject.com/en/dev/ref/templates/builtins/#slugify
slugify in Django Converts to lowercase, removes non-word characters (alphanumerics and underscores) and converts spaces to hyphens. Also strips leading and trailing whitespace.
Following are the functions in PHP to carry out same tasks.
$slug = preg_replace('@[\s!:;_\?=\\\+\*/%&#]+@', '-', $str);
//this will replace all non alphanumeric char with '-'
$slug = mb_strtolower($slug);
//convert string to lowercase
$slug = trim($slug, '-');
//trim whitespaces
You need to define a function in some controller TO use it in Yii
It is still not completely clear what you are trying to achieve exactly.
If you want to use a string that contains characters that are not supported by the browser then you should look into php functions that can do this for you.
Perhaps
http://php.net/manual/en/function.urlencode.php
(there are more, depends what you need)
If you want to use your own custom encoding then specify what your trying to achieve and I might be able to help.
You can add a behaviour to a model for that - this plugin will do the hard work for you.
Have a look to this class into yii2
https://github.com/yiisoft/yii2/blob/master/framework/behaviors/SluggableBehavior.php
and see how it use this library http://www.yiiframework.com/doc-2.0/yii-helpers-inflector.html the slug method