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])
ColdFusion MX: Added the encoding parameter.
Parameter |
Description |
|---|---|
string or binary_object |
A string, the name of a string, or a binary object. |
encoding |
For a string, defines how characters are represented in a byte array. The following list includes commonly used values:
|
Adobe 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>
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