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Checking number of characters entered in form field

Posted on 2003-03-10
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Last Modified: 2010-03-05
So I have this form where a user simply enters an 8 character accesscode... All I want to do is, after the user presses submit, print an error message if the user did not enter exactly 8 characters.  How would I do this in perl?  Thanks!

DiamonDogX
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Question by:DiamonDogX
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2 Comments
 

Accepted Solution

by:
sykkn earned 100 total points
ID: 8107429
Use the length() function.

============================================================
print "ERROR!" if(length($myVar) != 8);
============================================================
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Expert Comment

by:antonsigur
ID: 8112731
Use javascript in the htlm

<head>

<script language="JavaScript">
function formSub() {
 if (theForm.accessCode.length != 8)
    alert("enter 8 characters");
 else
    theForm.submit();
}
</script>

</head>

..... your form with no submit buttom ....
A submit link
<a href="formSub()">Submit</a>

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