ColdFusion If Statements

As a programmer, you will often need to use conditional statements.

A conditional statement is a piece of code that does one thing based on one condition, and another based on another condition. In fact, you could have as many conditions as you like.

ColdFusion If statements are an example of conditional statements. With If statements, you can tell the ColdFusion server to execute a piece of code only if a given condition is true.

Example If Statement

In this example, the text "Still haven't found what I'm looking for." only gets displayed if the condition is met (that the value of the variable "firstName" equals "Bono".

The letters eq are used with cfif to test that a something is equal to something.

<cfset firstName = "Bono">
<cfif firstName eq "Bono">
  Still haven't found what I'm looking for.
</cfif>

Display in browser:

"If Else" Statement

You can use the cfelse tag to do something if the condition is not met.

<cfset firstName = "Ozzy">
<cfif firstName eq "Bono">
  Still haven't found what I'm looking for.
<cfelse>
  Choose your own song then...
</cfif>

Display in browser:

Example "If Else If" Statement

You can use the cfelseif tag to perform another test (only if the preceeding condition/s is/are not met).

<cfset firstName = "Ozzy">
<cfif firstName eq "Bono">
  Still haven't found what I'm looking for.
<cfelseif firstName eq "Ozzy">
  Crazy Train!
<cfelse>
  Choose your own song then...
</cfif>

Display in browser:

NOT Equal To?

Just as eq stands for equal to, neq stands for not equal to.

<cfset firstName = "Ozzy">
<cfif firstName neq "Bono">
  Crazy Train!
</cfif>

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Less Than?

You can use lt to test that a value is less than another.

<cfset albumSales = 10>
<cfif albumSales lt 100>
  Don't give up your day job!
</cfif>

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Greater Than?

You can use gt to test that a value is greater than another.

<cfset albumSales = 150000000>
<cfif albumSales gt 1000000>
  Give up your day job!
</cfif>

Display in browser:

Greater Than Or Equal To/Less Than Or Equal To?

You can use gte to test that a value is greater than or equal to another.

You can use lte to test that a value is less than or equal to another.

<cfset age = 80>
<cfif age gte 80>
  Give up your day job!
</cfif>

Display in browser:

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