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Nik
Lv 7
Nik asked in Computers & InternetProgramming & Design · 6 years ago

Safest way to validate a textarea with PHP?

Its not like a normal input in the description I would want to safely allow commas, apostrophes and more that are also database friendly. I've already got the preg_match working to safely validate other inputs but with a description input I would want it to allow more of these grammatical signs but to do so safely.

How do you go about amending the preg_match function?

Thanks

2 Answers

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  • Jeff P
    Lv 7
    6 years ago

    Just use PHP's filter_var() function with the FILTER_SANITIZE_SPECIAL_CHARS filter. Don't mess with preg_match()--filter_var() is all you need, and this is what it is designed for.

    Source(s): http://www.w3schools.com/php/filter_sanitize_speci...
  • ?
    Lv 6
    6 years ago

    wrap it in mysqli_escape_string... like mysqli_escape_string($textarea_content); ... or look up prepared statements (PDO). Which is a much better and safer way to insert data in to a database and automatically escapes your data.

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