I use several forms on my site to send data to MySQL.
Which is the best way / method to validate my form, if I don’t want to users send any script to the database through my forms?
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I use several forms on my site to send data to MySQL.
Which is the best way / method to validate my form, if I don’t want to users send any script to the database through my forms?
Forget about jQuery. You can’t use anything running on the client to make things safe — the client can always override it.
You need to deal with the data on the server. See How can I prevent SQL injection in PHP? to protect your database and What are the best practices for avoiding xss attacks in a PHP site to protect your pages.