Calculates the Base64 representation of a string or binary object. The Base64 format uses printable characters, allowing binary data to be sent in forms and e-mail, and stored in a database or file.

The Base64 representation of a string or binary object.

Conversion functions, String functions

ToBase64(string or binary_object[, encoding])

• BinaryEncode for converstion of binary data to base64
• cffile for information about loading and reading binary data
• cfwddx for information about serializing and deserializing binary data
• IsBinary and ToBinary for checking for binary data and converting a Base64 object to binary format

ColdFusion MX: Added the encoding parameter.

Macromedia recommends that you use the BinaryEncode function to convert binary data to Base64-encoded data in all new applications.

<h3>ToBase64 Example</h3>
<!--- Initialize data. ---->
<cfset charData = "">
<!--- Create string of ASCII characters (32-255); concatenate them --->
<cfloop index = "data" from = "32" to = "255">
   <cfset ch = chr(data)>
   <cfset charData = charData & ch>
</cfloop>
<p>
The following string is the concatenation of all characters (32 to 255) 
from the ASCII table.<br>
<cfoutput>#charData#</cfoutput>
</p>
<!--- Create a Base64 representation of this string. ---->
<cfset data64 = toBase64(charData)>

<!----- Convert string to binary. ------->
<cfset binaryData = toBinary(data64)>
<!--- Convert binary back to Base64. ---->
<cfset another64 = toBase64(binaryData)>
<!---- Compare another64 with data64 to ensure that they are equal. ---->
<cfif another64 eq data64>
   <h3>Base64 representations are identical.</h3>
<cfelse>
   <h3>Conversion error.</h3>
</cfif>