There may be times when you're building your application that you'll need to not only validate against unwanted data, but also check the content of that data for any unwanted words or phrases. For example, imagine that you're building a simple blogging engine and you don't want people replying to your blog posts with rude words and phrases—fair enough. So, what you need to do is to be able to look through the user input and filter out any unwanted content that might be present. CodeIgniter provides just this facility with the function word_censor()
. Let's look at how to use it.
We're going to store our censored words in a database; so, we'll look for words that we'll use in place of actual rude words, such as rude_word_number_1
, and so on.
Run the following MySQL code in your database:
CREATE TABLE `censored_words` ( `id` int(11) NOT NULL AUTO_INCREMENT, `word` varchar(255) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT...