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The xmlrpc_set_type function in PHP is used to set the data type of the value being sent in XML-RPC messages. It determines how the value will be converted and parsed on the receiving end.

The function takes two arguments: the first one is the value to be set, and the second one is the desired data type. The possible data types are:

- "integer": to treat the value as an integer
- "boolean": to treat the value as a boolean
- "string": to treat the value as a string
- "double": to treat the value as a float (double)
- "datetime": to treat the value as a DateTime object
- "base64": to treat the value as a base64-encoded string

Here's an example usage of xmlrpc_set_type in PHP:

php
$value = "12345";
xmlrpc_set_type($value, "integer");

echo $value; // Output: 12345 (as an integer)


In this example, the value "12345" is set as an integer using xmlrpc_set_type, and when we echo the value, it is displayed as an integer.