Online PHP editor | output for gEsZl

<?php $responses = array('tok1' => '<?xml version="1.0" encoding="UTF-8"?> <GetOrdersResponse xmlns="urn:ebay:apis:eBLBaseComponents"> <OrderArray> <Order> <OrderID>111</OrderID> </Order> <Order> <OrderID>113</OrderID> </Order> </OrderArray> </GetOrdersResponse>', 'tok2' => '<?xml version="1.0" encoding="UTF-8"?> <GetOrdersResponse xmlns="urn:ebay:apis:eBLBaseComponents"> <OrderArray> <Order> <OrderID>121</OrderID> </Order> </OrderArray> </GetOrdersResponse>', 'tok3' => '<?xml version="1.0" encoding="UTF-8"?> <GetOrdersResponse xmlns="urn:ebay:apis:eBLBaseComponents"> <OrderArray> <Order> <OrderID>444</OrderID> </Order> </OrderArray> </GetOrdersResponse>', 'tok4' => '<?xml version="1.0" encoding="UTF-8"?> <GetOrdersResponse xmlns="urn:ebay:apis:eBLBaseComponents"> <OrderArray> <Order> <OrderID>564</OrderID> </Order> </OrderArray> </GetOrdersResponse>'); $auth_tokens = array('tok1', 'tok2', 'tok3', 'tok4'); $xmlstr = ''; foreach($auth_tokens as $auth_token) { // 4 iterations in loop $response = $responses[$auth_token]; // API xml response $xmlstr .= preg_replace('/<\?xml[^>]*>/', '', $response); // add response to XML } $xml = simplexml_load_string("<Orders>$xmlstr</Orders>"); header('content-type: text/xml'); echo $xml->asXML();