CFML Reference

RandRange

Description

Generates a random integer between two specified numbers. Requests for random integers that are greater than 100,000,000 result in non-random numbers, to prevent overflow during internal computations.

Return value

A random integer

Category

Mathematical functions

Syntax

RandRange(number1, number2)

See also

Rand, Randomize

Parameters

Parameter	Description
number1, number2	Integer numbers less than 100,000,000

Example

<h3>RandRange Example</h3>
<p>RandRange returns an integer between two specified integers.
<cfif IsDefined("FORM.myInt")>
  <p>RandRange returned:
    <cfoutput>#RandRange(FORM.myInt, FORM.myInt2)#</cfoutput>
</cfif>

<cfform action = "randRange.cfm">
<p>Enter a number to seed the randomizer:
<cfinput type = "Text" name = "MyInt" value = "1" RANGE = "1,100000000"
 message = "Please enter a value between 1 and 100,000,000"
  validate = "integer" required = "Yes">
<cfinput type = "Text" name = "MyInt2" value = "500" RANGE = "1,100000000"
 message = "Please enter a value between 1 and 100,000,000"
  validate = "integer" required = "Yes">
<p><input type = "Submit" name = "">
</cfform>

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