conditional statement based formatting of XML responses from php curl - php

Question

I am having difficulty formatting the XML response from a php curl XML API for INFOBIP. My code below loops SMS to mobile numbers. But I want to format the XML responses to show the messages successfully sent and those that were not successful using a conditional if else statement.
while ($row = mysql_fetch_array($result))
{
// XML-formatted data
$xmlString='
<SMS>
<authentication>
<username>'.$user.'</username>
<password>'.$pass.'</password>
</authentication>
<message>
<sender>'.$sender.'</sender>
<text>'.$message.'</text>
<recipients>
<gsm>'.$mobileno.'</gsm>
//<gsm>'.$mobileno1.'</gsm>
</recipients>
</message>
</SMS>';
$fields = "XML=" . urlencode($xmlString);
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $postUrl);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $fields);
$response = curl_exec($ch);
curl_close($ch);
$xml = simplexml_load_string($response);
// Successfully sent messages usually outputs <status>0<status> while unsuccessful outputs 1,2,3
if($xml->status == '0') {
echo "message successfully delivered to ".$mobileno. "<br>" ;
}else{
echo "error sending message to ".$mobileno."<br>" ;
}
}
The problem I have is being able to set or parse the XML responses to get the <status> if successfully sent or not based on the XML status response. Currently this how the XML responses outputs the results without formatting.
<?xml version="1.0" encoding="UTF-8"?>
<results>
<result><status>1</status><messageid></messageid><destination>23421</destination></result> </results>
<?xml version="1.0" encoding="UTF-8"?> <results> <result><status>-13</status><messageid></messageid><destination>23412</destination></result> </results>
<?xml version="1.0" encoding="UTF-8"?> <results> <result><status>0</status><messageid></messageid><destination>23444</destination></result>
</results>

Answer 1

$str_soap_xml='
<?xml version="1.0" encoding="UTF-8"?>
<results>
<result>
<status>1</status>
<messageid></messageid>
<destination>23421</destination>
</result>
</results>
<?xml version="1.0" encoding="UTF-8"?>
<results>
<result>
<status>-13</status>
<messageid></messageid>
<destination>23412</destination>
</result>
</results>
<?xml version="1.0" encoding="UTF-8"?>
<results>
<result>
<status>0</status>
<messageid></messageid>
<destination>23444</destination>
</result>
</results>';
/*
manipulate the dodgy, invalid xml by firstly stripping out the XML Prologs
then give a new ROOT node ( as valid xml can only have one root node )
and then, to make sure, append a new XML Prolog
*/
$str_soap_xml='<?xml version="1.0" encoding="UTF-8"?><root>'.trim( str_replace( '<?xml version="1.0" encoding="UTF-8"?>', '', $str_soap_xml ) ).'</root>';
$total=0;
define('BR','<br />');
/* create the domdocument object & load the string */
$dom=new DOMDocument('1.0','utf-8');
$dom->loadXML( $str_soap_xml );
/* find all result nodes */
$col=$dom->getElementsByTagName('result');
/* iterate through each result and find it's children */
foreach( $col as $node ){
foreach( $node->childNodes as $child ){
echo $child->tagName.' '.$child->nodeValue.BR;
if( $child->tagName=='status' && $child->nodeValue==0 ) echo 'Bad foo!';
elseif( $child->tagName=='status' ) $total++;
}
}
$dom=$col=$node=$child=null;
echo 'total: '.$total.' add this to db';