https://github.com/robclancy/string https://github.com/danielstjules/Stringy https://github.com/danielstjules/Stringy#totitlecase http://www.phpforkids.com/php/php-functions-strings.php
https://www.sitepoint.com/string-handling-functions/
https://packagist.org/search/?tags=utf8
https://github.com/Anahkiasen/underscore-php
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