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Javascript validation in PHP

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Hi Guys,

I am doing a login page which contains user name and password..

I need to validate the username using regular expression
the criteria is as follows:
1)It can contain either alphabets, special characters(-,'',_) or numbers..
2)length should be minimum of 8 characters and maximum of 20 characters..

so, my codings to validate the username is

"if(!(/^[a-zA-Z0-9/-_ ]{8,20}$/).test(uid))" does not validate the above mentioned criteria.. please clarify me

Thanks in advance


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My guess is that the '/' after '9' is terminating the regular expression. I think you meant to use a '\'.
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