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#1
August 19th, 2004, 02:28 PM
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Validating an Email Address
This is probably really easy to do, but due to me lack of CF knowledge I'm not sure where to start. I need some basic server-side validation for email addresses. Client-side won't work because I'm getting this data from a database, not user input.
More than anything I just want a way to check for the presence of an @ symbol in the string, but I didn't see any string functions that looked like they'd fit the bill. Any help appreciated, wdn2k
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#3
August 20th, 2004, 04:30 AM
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There is a custom tag available for server-side checking email-address-syntax..
See the attachment.
__________________
** Don't expect me to code your needs, but if I am able to help, I'm willing. Shout, grab and use the hand! ** Man can no more own the land we walk upon, as they can lay claim on the air that we breath ** DeepDown I'm addicted to structures.... ohw and music  ** Almost forgot I had an account here [*o*]
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#4
August 21st, 2004, 10:39 PM
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Quick Freebie Crashcourse
1.Validate that username is 4-11 characters long:
Code:
<cfif Len(form.Username) LTE 4 OR Len(form.Username) GTE 11> ERROR!!<cfelse> Proceed</cfif> 2.Make sure the confirm password = password Code:
<cfelseif #Trim(form.ConfirmPassword)# NEQ #Trim(form.Password)#> ERROR!!! 3.Ensure that Usernames are not already taken 1st write a cfquery called search then... Code:
<cfif Search.RecordCount GTE 1> ERROR <cfelse> Proceed </cfif> 4.And finally email validation <CFSET Alas = @> Code:
<Cfif (Len(form.email) IS NOT 0) AND (Alas > 1) PROCEED <cfelse> ERROR </cfif> THIS IS MY GOOD DEED OF THE MONTH...FOR ALL THOSE WHO HAVE HELPED ME. 
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#5
August 22nd, 2004, 03:52 AM
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Quote:
Euhm, this check will give an error if the username is 5-10 characters long... And euh.. is this post related to the actual question.. Nevermind...  Anyway, swap your operators and use an AND instead of an OR
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#7
August 22nd, 2004, 02:52 PM
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In addition to the solution provided by Alas, you could use regular expressions to verify email addresses. There are also some nice custom tags available in the developer's exchange (cf_emailverify, etc.).
__________________
Ask if you have a question, but also help answer questions that you have knowledge of! Thanks, Brian. How to Post a Question in the Forums
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#8
August 22nd, 2004, 08:50 PM
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I use the following function to validate an e-mail address:
Code:
<cfscript>
function validate_email(email) {
ret_val = "true";
if(not len(trim(arguments.email)) or
not refind("^[0-9A-Za-z.'+_-]+@([0-9A-Za-z-]+\.)+[A-Za-z]+$", trim(arguments.email))) {
ret_val = "false";
}
return ret_val;
}
</cfscript>
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