Basic Error Handling

<?php

include './ccxt.php';

date_default_timezone_set('UTC');

$exchange = new \ccxt\bittrex ();

$message = null;

try {

   $result = $exchange->fetch_ticker ('NONEXISTENT_SYMBOL');
   var_dump ($result);

} catch (Exception $e) {

   // print it
   echo $e->getMessage() . "\n";

   // save to $message (for whatever needs)
   $message = $e->getMessage();
}

?>