Create xml using php

$employees = array();
$employees [] = array(
'name' => 'Albert',
'age' => '34',
'salary' => "$10000"
);
$employees [] = array(
'name' => 'Claud',
'age' => '20',
'salary' => "$2000"
);

$doc = new DOMDocument();
$doc->formatOutput = true;

$r = $doc->createElement( "employees" );
$doc->appendChild( $r );

foreach( $employees as $employee )
{
$b = $doc->createElement( "employee" );

$name = $doc->createElement( "name" );
$name->appendChild(
$doc->createTextNode( $employee['name'] )
);
$b->appendChild( $name );

$age = $doc->createElement( "age" );
$age->appendChild(
$doc->createTextNode( $employee['age'] )
);
$b->appendChild( $age );

$salary = $doc->createElement( "salary" );
$salary->appendChild(
$doc->createTextNode( $employee['salary'] )
);
$b->appendChild( $salary );

$r->appendChild( $b );
}

echo $doc->saveXML();
$doc->save("write.xml")
?>