How to use xss clean in Codeigniter?

@adan 

In CodeIgniter, you can use the xss_clean() function to sanitize input data and prevent cross-site scripting (XSS) attacks. This function is provided by the Security library, which is loaded by default in CodeIgniter.

Here's an example of how to use xss_clean():

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$input = $this->input->post('input_field');
$clean_input = $this->security->xss_clean($input);

The xss_clean() function takes a string as an argument and returns the sanitized version of the string. It removes any potentially malicious code or scripts from the input data.

You can also use the xss_clean() function on arrays of data by using the xss_clean_array() function, like this:

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$input_array = $this->input->post();
$clean_input_array = $this->security->xss_clean_array($input_array);

It's important to note that the xss_clean() function is not 100% foolproof and cannot completely protect against all types of XSS attacks. It's always a good idea to also validate and filter your input data as part of your overall security strategy.