check status of message using txtlocal api - php

Question

this is the code for sending messages using txtlocal
$message = urlencode($message);
$data = "username=".$username."&hash=".$hash."&message=".$message."&sender=".$sender."&numbers=".$numbers."&test=".$test;
$ch = curl_init('http://api.txtlocal.com/send/?');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch); // This is the result from the API
echo $result;
curl_close($ch);
but how can i check for some error. im using
echo $result;
to print the output result
and it gives me something like this
{"balance":94.5,"batch_id":309268453,"cost":0.5,"num_messages":1,"message":{"num_parts":1,"sender":"Audrey","content":"This is a test message from the PHP API script."},"receipt_url":"","custom":"","messages":[{"id":"1356746460","recipient":639000000000}],"status":"success"}
i can get the last string for the success messages. but what if the output is not success?

Answer 1

but what if the output is not success?
That's up to you to determine...
Their documentation states this:
Every response will contain a "status" field, which can be either "success" or "failure". This field can be used to determine whether your request was successful.
Therefore, if you want to check it, you can do it like so:
$result = json_decode($result);
if ($result->status == 'success') {
echo 'It worked...';
} else {
echo "It didn't work.";
}