server.php

<?php

class server
{

    private $alunos;

    public function __construct()
    {
        $this->alunos = array(
            '20172014040011' => 'A**** L*** B***** C****',
            '20181014040032' => 'A***** M***** D* S****',
            '20181014040007' => 'A**** R***** A***** C****',
            '20172014040003' => 'D***** S**** A**** F******',
            '20171014040040' => 'B***** H**** L*** R****',
            '20172014040027' => 'E**** S***** D* S****',
            '20181014040006' => 'G****** L**** A***** C****',
            '20181014040027' => 'E****** B**** M**** C*****',
            '20172014040040' => 'G**** R*** G**** J****',
            '20181014040020' => 'IGOR ALISSON SILVA',
            '20181014040008' => 'G***** L**** D* S****',
            '20142014040302' => 'H**** J***** O****** A***** A*****',
            '20181014040030' => 'J*** V*** D** S**** V******',
            '20172014040031' => 'J*** P**** F**** D* S****',
            '20181014040040' => 'J*** J**** D** S*****',
            '20181014040014' => 'L***** T**** D* O**** J***',
            '20162014040007' => 'J***** D* A****** C******',
            '20181014040029' => 'L*** S**** G******',
            '20162014040036' => 'M***** V****** D* S****',
            '20172014040006' => 'L**** M***** D* S**** M*****',
            '20162014040029' => 'M***** A*** D* F***** T***** M****',
            '20181014040015' => 'P**** B******** D* C****',
            '20181014040009' => 'P**** R**** V***** D* S****',
            '20122014040073' => 'R***** P***** D* O**** S****',
            '20181014040011' => 'S***** J***** S**** D* S****',
            '20181014040025' => 'W****** C**** D* S****',
            '20151014040016' => 'W***** E***** D* S**** A****',
        );
    }

    public function getNomeEstudante($matricula)
    {
        if( isset($this->alunos[$matricula]) == 1 ) return $this->alunos[$matricula];
        else throw new SoapFault('Matricula não encontrada', 401);
    }

}

$params = array(
    'uri' => 'localhost:8080/server.php',
);

$server = new SoapServer(NULL, $params);
$server->setClass('server');
$server->handle();