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Is there a regular expression i can use to search for bad characters in form submisssion

 
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i created a form to gather client data... I am looking for a regex that i can use to test the data i am collecting against characters that hackers use... I only want alpha numeric and normal punctuation...

something like
var specials = new RegExp(/^[a-zA-Z_0-9]$/);

is this worth the effort.

is there a better regex i can use?
 
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Christopher Whu wrote:i created a form to gather client data... I am looking for a regex that i can use to test the data i am collecting against characters that hackers use... I only want alpha numeric and normal punctuation...

something like
var specials = new RegExp(/^[a-zA-Z_0-9]$/);

is this worth the effort.

is there a better regex i can use?



you can use form validation and use that to weed out sql injection and other hacker tactics
 
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