| CFML Reference |
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ColdFusion Functions |
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| CFML Reference |
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ColdFusion Functions |
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Returns a number that the beginning of a string can be converted to. Returns 0 if conversion is not possible.
Val(string)
| Parameter |
Description |
|---|---|
| string |
A string |
<!--- This example shows Val --->
<html>
<head>
<title>
Val Example
</title>
</head>
<body bgcolor = silver>
<H3>Val Example</H3>
<cfif IsDefined("FORM.theTestValue")>
<cfif Val(FORM.theTestValue) is not 0>
<H3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput>
can be converted to a number:
<cfoutput>#Val(FORM.theTestValue)#</cfoutput></H3>
<cfelse>
<H3>The beginning of the string <cfoutput>#DE(FORM.theTestValue)#
</cfoutput> cannot be converted to a number</H3>
</cfif>
</cfif>
<form action = "val.cfm" method = "POST">
<P>Enter a string, and discover if
its beginning can be evaluated to a numeric value.
<P><input type = "Text" name = "TheTestValue" value = "123Boy">
<input type = "Submit" value = "Is the beginning numeric?" name = "">
</FORM>
</body>
</html>
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