Build a string representation of the deprecated feature that was raised
string
public function __toString() {
$string = '';
if (isset($this->traceInfo['file'])) {
$string .= $this->traceInfo['file'];
if (isset($this->traceInfo['line'])) {
$string .= ':' . $this->traceInfo['line'] . ' - ';
}
}
$string .= $this->message;
return $string;
}