Question

I am using SimpleXML to load a response from an API call. However, if the server returns an error, it only returns a single XML tag with the error message:

<err>ERROR MESSAGE HERE</err>

I’m currently using this code to parse the API response:

$parsedresponse = simplexml_load_string($response);

The $parsedresponse variable contains only the error message. However, I need a way to check if the <err> tag is present so I know if there was an error. I can’t seem to figure out how to do this…

Thank you!

Answer 1

If err tag is the root tag use the following condition to trace the error.

if ($parsedresponse->getName()=='err'){
    // got it
}

If its the first child use

if (isset($parsedresponse->err)){
    // got it
}

• negate the condition as necessary.