No, there are some character entities that cannot be displayed when the operating system that the browser is running on does not support the characters. When that happens, these characters are displayed as boxes.
Tell me what are the three classes of errors that can occur in PHP?
Tell us is it possible to submit a form with a dedicated button?
Tell us how is it possible to parse a configuration file?
Tell us what helpers in CodeIgniter are and how you can load a helper file?
Do you know what is inhibitor in CodeIgniter?
Tell me how you can enable CSRF (Cross Site Request Forgery) in CodeIgniter?
Do you know how can you enable error reporting in PHP?
Do you know what are SQL Injections, how do you prevent them and what are the best practices?
Tell us how do you create a persistent cookie in php?
Tell me are objects in PHP 5+ passed by value or reference?
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