# SoapServer->addFunction()

(PHP 5 >= 5.0.1)

SoapServer->addFunction() — Adds one or several functions those will handle SOAP requests

### Description

SoapServer
void addFunction ( mixed `$functions` )

Exports one or more functions for remote clients.

### Parameters

`functions`

  To export one function, pass the function name into this parameter as a string.

  To export several functions, pass an array of function names.

  To export all the functions, pass a special constant `SOAP_FUNCTIONS_ALL`.

  > Note: `functions` must receive all input arguments in the same order as defined in the WSDL file (They should not receive any output parameters as arguments) and return one or more values. To return several values they must return an array with named output parameters.

### Return Values

No value is returned.

### Examples

Example#1 Some examples

`<?php
function echoString($inputString)
{
return $inputString;
}
$server->addFunction("echoString");
function echoTwoStrings($inputString1, $inputString2)
{
return array("outputString1" => $inputString1,
"outputString2" => $inputString2);
}
$server->addFunction(array("echoString", "echoTwoStrings"));
$server->addFunction(SOAP_FUNCTIONS_ALL);
?>`

### See Also

- SoapServer->__construct()
- SoapServer->setClass()