function rxStringBreaker($rxString)
{
$cleanRxString = cleanRxString($rxString);
$splitRxString = splitRxString($cleanRxString);
$rxChunks = explode(":", $splitRxString);
//print_r($rxChunks);
$returnRx = new RxObject();
if (count($rxChunks) > 0) {
$returnRx->sph = removeLetters($rxChunks[0]);
} else {
$returnRx->sph = 0;
}
if (count($rxChunks) > 1) {
$returnRx->cyl = removeLetters($rxChunks[1]);
} else {
$returnRx->cyl = 0;
}
if (count($rxChunks) > 2) {
$returnRx->axis = removeLetters($rxChunks[2]);
} else {
$returnRx->axis = 0;
}
$checkSph = checkSphereRange($returnRx->sph);
$checkCyl = checkSphereRange($returnRx->cyl);
$checkAxis = checkAxisRange($returnRx->axis);
if (!$checkSph || !$checkCyl || !$checkAxis) {
return null;
}
return $returnRx;
}
public function isValidK()
{
//make sure each of these things is true
if (!$this->num1 || !$this->num2) {
return 0;
}
$n1OK = $this->num1->isValidK();
$n2OK = $this->num2->isValidK();
$m1OK = checkAxisRange($this->meridian1);
$m2OK = checkAxisRange($this->meridian2);
return $n1OK && $n2OK && $m1OK && $m2OK ? 1 : 0;
}
public function isValidRx()
{
//make sure each of these things is true
$valid = checkSphereRange($this->sph);
$valid += checkCylinderRange($this->cyl);
$valid += checkAxisRange($this->axis);
if ($valid < 3) {
return 0;
}
return 1;
}