IsValid

Last updated on May 30, 2024 | Also applies to ColdFusion

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ColdFusion functions

ColdFusion functions by category
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ColdFusion tags

ColdFusion tag summary
ColdFusion tags by category
1. Application framework tags
  1. cfapplication
  2. cfassociate
  3. cferror
  4. cfimport
  5. cfinterface
  6. cflock
  7. cfscript
  8. cfthread
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3. Database manipulation tags
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  1. cfchart
5. Debugging tags
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  2. cferror
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  2. cfchartdata
  3. cfchartseries
  4. cfcollection
  5. cfcomponent
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  7. cfftp
  8. function
  9. cfindex
  10. cfinterface
  11. cfinvoke
  12. cfinvokeargument
  13. cfobject
  14. cfproperty
  15. cfreport
  16. cfreportparam
  17. cfreturn
  18. cfsearch
  19. cfsharepoint
  20. cfspreadsheet
  21. cfwddx
  22. cfxml
8. File management tags
  1. cfdirectory
  2. cffile
  3. cffileupload
  4. cfftp
  5. cfzip
  6. cfzipparam
9. Flow-control tags
  1. cfabort
  2. cfbreak
  3. cfcase
  4. cfcontinue
  5. cfdefaultcase
  6. cfelse
  7. cfelseif
  8. cfexecute
  9. cfexit
  10. cfif
  11. cfinclude
  12. cflocation
  13. cfloop
  14. cfrethrow
  15. cfswitch
  16. cfthrow
  17. cftry
10. Forms tags
  1. cfapplet
  2. cfcalendar
  3. cffileupload
  4. cfform
  5. cfformgroup
  6. cfformitem
  7. cfgrid
  8. cfgridcolumn
  9. cfgridrow
  10. cfgridupdate
  11. cfinput
  12. cfpdf
  13. cfpdfform
  14. cfpdfformparam
  15. cfpdfparam
  16. cfpdfsubform
  17. cfselect
  18. cfslider
  19. cftextarea
  20. cftree
  21. cftreeitem
11. Internet Protocol tags
  1. cfajaximport
  2. cfajaxproxy
  3. cfftp
  4. cffeed
  5. cfimap
  6. cfhttp
  7. cfhttpparam
  8. cfldap
  9. cfmail
  10. cfmailparam
  11. cfmailpart
  12. cfpop
  13. cfsprydataset
12. Page processing tags
  1. cfcache
  2. cfcontent
  3. cfflush
  4. cfheader
  5. cfhtmlhead
  6. cfinclude
  7. cfprocessingdirective
  8. cfsetting
  9. cfsilent
13. Security tags
14. Variable manipulation tags
  1. cfcookie
  2. cfdump
  3. cfparam
  4. cfregistry
  5. cfsavecontent
  6. cfschedule
  7. cfset
  8. cfsetting
15. Other tags
  1. cfimage
  2. cflog
  3. cfregistry
Tags a-b
Tags c
Tags f
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1. cfgraph
2. cfgraphdata
3. cfgrid
4. cfgridcolumn
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7. cfheader
8. cfhtmlhead
9. cfhtmltopdf
10. cfhtmltopdfitem
11. cfhttp
12. cfhttpparam
Tags i
1. cfif
2. cfimage
3. cfimap
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5. cfimpersonate
6. cfimport
7. cfinclude
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11. cfinterface
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13. cfinvokeargument
Tags j-l
Tags m-o
Tags p-q
1. cfparam
2. cfpdf
3. cfpdfform
4. cfpdfformparam
5. cfpdfparam
6. cfpdfsubform
7. cfpod
8. cfpop
9. cfpresentation
10. cfpresentationslide
11. cfpresenter
12. cfprint
13. cfprocessingdirective
14. cfprocparam
15. cfprocresult
16. cfprogressbar
17. cfproperty
18. cfquery
19. cfqueryparam
Tags r-s
1. cfregistry
2. cfreport
3. cfreportparam
4. cfrethrow
5. cfreturn
6. cfsavecontent
7. cfschedule
8. cfscript
9. cfsearch
10. cfselect
11. cfservlet
12. cfservletparam
13. cfset
14. cfsetting
15. cfsharepoint
16. cfsilent
17. cfslider
18. cfspreadsheet
19. cfsprydataset
20. cfstoredproc
21. cfswitch
Tags t
1. cftable
2. cftextarea
3. cftextinput
4. cfthread
5. cfthrow
6. cftimer
7. cftooltip
8. cftrace
9. cftransaction
10. cftree
11. cftreeitem
12. cftry
Tags u-z
1. cfupdate
2. cfwddx
3. cfwebsocket
4. cfwindow
5. cfxml
6. cfzip
7. cfzipparam

CFML Reference

Cloud services

CFML Reference User Guide
ColdFusion functions
ColdFusion tags
1. ColdFusion tag summary
2. ColdFusion tags by category
  1. Application framework tags
    1. cfapplication
    2. cfassociate
    3. cferror
    4. cfimport
    5. cfinterface
    6. cflock
    7. cfscript
    8. cfthread
  2. Communications tags
  3. Database manipulation tags
  4. Data output tags
    1. cfchart
  5. Debugging tags
    1. cfdump
    2. cftimer
    3. cftrace
  6. Exception handling tags
    1. cfcatch
    2. cferror
    3. cffinally
    4. cfrethrow
    5. cfthrow
    6. cftry
  7. Extensibility tags
    1. cfchart
    2. cfchartdata
    3. cfchartseries
    4. cfcollection
    5. cfcomponent
    6. cfexecute
    7. cfftp
    8. function
    9. cfindex
    10. cfinterface
    11. cfinvoke
    12. cfinvokeargument
    13. cfobject
    14. cfproperty
    15. cfreport
    16. cfreportparam
    17. cfreturn
    18. cfsearch
    19. cfsharepoint
    20. cfspreadsheet
    21. cfwddx
    22. cfxml
  8. File management tags
    1. cfdirectory
    2. cffile
    3. cffileupload
    4. cfftp
    5. cfzip
    6. cfzipparam
  9. Flow-control tags
    1. cfabort
    2. cfbreak
    3. cfcase
    4. cfcontinue
    5. cfdefaultcase
    6. cfelse
    7. cfelseif
    8. cfexecute
    9. cfexit
    10. cfif
    11. cfinclude
    12. cflocation
    13. cfloop
    14. cfrethrow
    15. cfswitch
    16. cfthrow
    17. cftry
  10. Forms tags
    1. cfapplet
    2. cfcalendar
    3. cffileupload
    4. cfform
    5. cfformgroup
    6. cfformitem
    7. cfgrid
    8. cfgridcolumn
    9. cfgridrow
    10. cfgridupdate
    11. cfinput
    12. cfpdf
    13. cfpdfform
    14. cfpdfformparam
    15. cfpdfparam
    16. cfpdfsubform
    17. cfselect
    18. cfslider
    19. cftextarea
    20. cftree
    21. cftreeitem
  11. Internet Protocol tags
    1. cfajaximport
    2. cfajaxproxy
    3. cfftp
    4. cffeed
    5. cfimap
    6. cfhttp
    7. cfhttpparam
    8. cfldap
    9. cfmail
    10. cfmailparam
    11. cfmailpart
    12. cfpop
    13. cfsprydataset
  12. Page processing tags
    1. cfcache
    2. cfcontent
    3. cfflush
    4. cfheader
    5. cfhtmlhead
    6. cfinclude
    7. cfprocessingdirective
    8. cfsetting
    9. cfsilent
  13. Security tags
  14. Variable manipulation tags
    1. cfcookie
    2. cfdump
    3. cfparam
    4. cfregistry
    5. cfsavecontent
    6. cfschedule
    7. cfset
    8. cfsetting
  15. Other tags
    1. cfimage
    2. cflog
    3. cfregistry
3. Tags a-b
4. Tags c
5. Tags f
6. Tags g-h
  1. cfgraph
  2. cfgraphdata
  3. cfgrid
  4. cfgridcolumn
  5. cfgridrow
  6. cfgridupdate
  7. cfheader
  8. cfhtmlhead
  9. cfhtmltopdf
  10. cfhtmltopdfitem
  11. cfhttp
  12. cfhttpparam
7. Tags i
  1. cfif
  2. cfimage
  3. cfimap
  4. cfimapfilter
  5. cfimpersonate
  6. cfimport
  7. cfinclude
  8. cfindex
  9. cfinput
  10. cfinsert
  11. cfinterface
  12. cfinvoke
  13. cfinvokeargument
8. Tags j-l
9. Tags m-o
10. Tags p-q
  1. cfparam
  2. cfpdf
  3. cfpdfform
  4. cfpdfformparam
  5. cfpdfparam
  6. cfpdfsubform
  7. cfpod
  8. cfpop
  9. cfpresentation
  10. cfpresentationslide
  11. cfpresenter
  12. cfprint
  13. cfprocessingdirective
  14. cfprocparam
  15. cfprocresult
  16. cfprogressbar
  17. cfproperty
  18. cfquery
  19. cfqueryparam
11. Tags r-s
  1. cfregistry
  2. cfreport
  3. cfreportparam
  4. cfrethrow
  5. cfreturn
  6. cfsavecontent
  7. cfschedule
  8. cfscript
  9. cfsearch
  10. cfselect
  11. cfservlet
  12. cfservletparam
  13. cfset
  14. cfsetting
  15. cfsharepoint
  16. cfsilent
  17. cfslider
  18. cfspreadsheet
  19. cfsprydataset
  20. cfstoredproc
  21. cfswitch
12. Tags t
  1. cftable
  2. cftextarea
  3. cftextinput
  4. cfthread
  5. cfthrow
  6. cftimer
  7. cftooltip
  8. cftrace
  9. cftransaction
  10. cftree
  11. cftreeitem
  12. cftry
13. Tags u-z
  1. cfupdate
  2. cfwddx
  3. cfwebsocket
  4. cfwindow
  5. cfxml
  6. cfzip
  7. cfzipparam
CFML Reference
1. Reserved words and variables
2. Ajax JavaScript functions
3. ColdFusion ActionScript functions
4. ColdFusion mobile functions
5. Application.cfc reference
6. Script functions implemented as CFCs
7. ColdFusion Flash Form style reference
8. ColdFusion event gateway reference
9. ColdFusion C++ CFX Reference
10. ColdFusion Java CFX reference
11. WDDX JavaScript Objects
Cloud services

Description

Tests whether a value meets a validation or data type rule.

Returns

True, if the value conforms to the rule; False, otherwise.

Function syntax

IsValid(type, value)

isValid("range", value, min, max)

isValid("regex" or "regular_expression", value, pattern)

IsValid(type, value) isValid("range", value, min, max) isValid("regex" or "regular_expression", value, pattern)

IsValid(type, value) 
isValid("range", value, min, max) 
isValid("regex" or "regular_expression", value, pattern)

History

ColdFusion (2016 release) Update 3: Added datetime_object as type.

ColdFusion 11: Behavioral change

Prior to ColdFusion 11, this function allowed currency symbols at the start and commas inside the number. Starting from ColdFusion 11, this function evaluates on a more strict basis. To revert to the old behavior use the application-level setting STRICTNUMBERVALIDATION to false.

ColdFusion 8: Added the component value for to the type parameter.

ColdFusion MX 7: Added this function.

Parameters

Parameter	Description
type	The valid format for the data; one of the following. For detailed information on validation algorithms, see Validating form data using hidden fields in the Developing ColdFusion Applications. array: a ColdFusion array; equivalent to the IsArray function. any: any data type. binary: a binary value;; equivalent to the IsBinary function. boolean: a Boolean value: yes, no, true, false, or a number; equivalent to the IsBoolean function. component: a ColdFusion component (CFC). creditcard : a 13-16 digit number conforming to the mod10 algorithm. date or time: any date-time value, including dates or times; equivalent to the IsNumericDate function. datetime_object: any valid ColdFusion date/time object. email: a valid email address. You can also pass IPV6 format values. Supports RFC standards for validating an enail address. For more information, see Valid email addresses. If it is a valid email address, isValid returns True. eurodate : any date-time value, including US date formats and time values, float: a floating point value. function: any UDF. numeric: a numeric value; equivalent to the IsNumeric function. guid : a Universally Unique Identifier of the form " XXXXXXXX -XXXX-XXXX-XXXX- XXXXXXXXXXXX " where X is a hexadecimal number. integer: an integer. query : a query object; equivalent to the IsQuery function. range: a numeric range, specified by the min and max parameters. regex or regular_expression: matches input against pattern parameter. ssn or social_security_number: A U.S. social security number. string: a string value, including single characters and numbers struct: a structure; equivalent to the IsStruct function. telephone: a standard US telephone number. URL: an http , https, ftp , file, mailto , or news URL. You can also pass IPV6 format values. UUID: a ColdFusion Universally Unique Identifier, formatted XXXXXXXX -XXXX-XXXX-XXXXXXXXXXXXXXX, where X is a hexadecimal number. See CreateUUID. USdate : a U.S. date of the format mm/dd/yy, with 1-2 digit days and months, 1-4 digit years. variableName: a string formatted according to ColdFusion variable naming conventions. xml: any xml object. zipcode: U.S., 5- or 9-digit format ZIP codes.
value	The value to test
min	The minimum valid value; used only for range validation
max	The maximum valid value; used only for range validation
pattern	A JavaScript regular expression that the parameter must match; used only for regex or regular_expression validation.

Usage

The IsValid function lets you assure that validation is performed on the server. You can use the cfparam tag to perform equivalent validation.

Example

The following example checks whether a user has submitted a numeric ID and a valid e-mail address and phone number. If any of the submitted values does not meet the validation test, it displays an error message.

<cfif isValid("integer", form.UserID) and isValid("email", form.emailAddr)

and isValid("telephone", form.phoneNo)>

<h3>The email address and phone number for user #Form.UserID#

have been added</h3>

</cfoutput>

<H3>You must supply a valid User ID, phone number, and email address.</H2>

</cfif>

</cfif>

User ID:<cfinput type="Text" name="UserID"><br>

Phone: <cfinput type="Text" name="phoneNo"><br>

email: <cfinput type="Text" name="emailAddr"><br>

</cfform>

<cfif isDefined("form.saveSubmit")> <cfif isValid("integer", form.UserID) and isValid("email", form.emailAddr) and isValid("telephone", form.phoneNo)> <cfoutput>  <h3>The email address and phone number for user #Form.UserID# have been added</h3> </cfoutput> <cfelse> <H3>You must supply a valid User ID, phone number, and email address.</H2> </cfif> <cfelse> </cfif> <cfform action="#CGI.SCRIPT_NAME#"> User ID:<cfinput type="Text" name="UserID"><br> Phone: <cfinput type="Text" name="phoneNo"><br> email: <cfinput type="Text" name="emailAddr"><br> <cfinput type="submit" name="saveSubmit" value="Save Data"><br> </cfform>

<cfif isDefined("form.saveSubmit")> 
<cfif isValid("integer", form.UserID) and isValid("email", form.emailAddr) 
and isValid("telephone", form.phoneNo)> 
<cfoutput> 
<!--- Application code to update the database goes here ---> 
<h3>The email address and phone number for user #Form.UserID# 
have been added</h3> 
</cfoutput> 
<cfelse> 
<H3>You must supply a valid User ID, phone number, and email address.</H2> 
</cfif> 
<cfelse> 
</cfif> 

<cfform action="#CGI.SCRIPT_NAME#"> 
User ID:<cfinput type="Text" name="UserID"><br> 
Phone: <cfinput type="Text" name="phoneNo"><br> 
email: <cfinput type="Text" name="emailAddr"><br> 
<cfinput type="submit" name="saveSubmit" value="Save Data"><br> 
</cfform>

In ColdFusion 11, the isValid function behaves in a different way. Setting strictnumbervalidation to false makes the isValid function to behave in a way just like in the previous versions (ColdFusion 10 or earlier). Starting from ColdFusion 11, a more strict approach will be followed for validation. However, if you need the isValid function behavior to be of ColdFusion 10, set the key/tag attribute strictnumbervalidation to false in application cfc/cfm.

Application.cfm

<cfapplication name="hello" STRICTNUMBERVALIDATION="false" >

Application.cfc

{

this.STRICTNUMBERVALIDATION = false;

}

</cfscript>

</cfcomponent>

<cfcomponent> <cfscript> { this.STRICTNUMBERVALIDATION = false; } </cfscript> </cfcomponent>

<cfcomponent>
<cfscript>
{
this.STRICTNUMBERVALIDATION = false;
}
</cfscript>
</cfcomponent>

Example

// check if 50 is an integer

writeOutput(isValid("integer",50)) // Yes

// check if 3.14 is a numeric

writeOutput(isValid("numeric",3.14)) // Yes

// check if it is a valid url

writeOutput(isValid("URL","http://www.example.com")) // Yes

</cfscript>

<cfscript> // check if 50 is an integer writeOutput(isValid("integer",50)) // Yes // check if 3.14 is a numeric writeOutput(isValid("numeric",3.14)) // Yes // check if it is a valid url writeOutput(isValid("URL","http://www.example.com")) // Yes </cfscript>

<cfscript>
    // check if 50 is an integer
    writeOutput(isValid("integer",50)) // Yes
    // check if 3.14 is a numeric
    writeOutput(isValid("numeric",3.14)) // Yes
    // check if it is a valid url
    writeOutput(isValid("URL","http://www.example.com")) // Yes
</cfscript>

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IsValid

Description

Returns

Category

Function syntax

See also

History

Parameters

Usage

Example

Example

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