Defer input field checking (fixes #30)

src/PhoneValidator.php

@@ -111,23 +111,22 @@ protected function assignParameters(array $parameters)
 		$types = array();
 
 		foreach ($parameters as $parameter) {
-			if ($this->isInputField($parameter)) {
+			// First check if the parameter is some phone type configuration.
+			if ($this->isPhoneType($parameter)) {
+				$types[] = strtoupper($parameter);
+			} elseif ($this->isPhoneCountry($parameter)) {
+				$this->countries[] = strtoupper($parameter);
+			} elseif ($parameter == 'AUTO') {
+				$this->autodetect = true;
+			} elseif ($parameter == 'LENIENT') {
+				$this->lenient = true;
+			}
+			// Lastly check if it is an input field containing the country.
+			elseif ($this->isInputField($parameter)) {
 				$this->countryField = $parameter;
 			} else {
-				$parameter = strtoupper($parameter);
-
-				if ($this->isPhoneCountry($parameter)) {
-					$this->countries[] = $parameter;
-				} elseif ($this->isPhoneType($parameter)) {
-					$types[] = $parameter;
-				} elseif ($parameter == 'AUTO') {
-					$this->autodetect = true;
-				} elseif ($parameter == 'LENIENT') {
-					$this->lenient = true;
-				} else {
-					// Force developers to write proper code.
-					throw new InvalidParameterException($parameter);
-				}
+				// Force developers to write proper code.
+				throw new InvalidParameterException($parameter);
 			}
 		}
 
@@ -226,7 +225,7 @@ protected function parseTypes(array $types)
 	 */
 	public function isInputField($field)
 	{
-		return ! is_null(array_get($this->data, $field));
+		return !is_null(array_get($this->data, $field));
 	}
 
 	/**
@@ -237,7 +236,7 @@ public function isInputField($field)
 	 */
 	public function isPhoneCountry($country)
 	{
-		return ISO3166::isValid($country);
+		return ISO3166::isValid(strtoupper($country));
 	}
 
 	/**
@@ -251,7 +250,7 @@ public function isPhoneType($type)
 		// Legacy support.
 		$type = ($type == 'LANDLINE' ? 'FIXED_LINE' : $type);
 
-		return defined('\libphonenumber\PhoneNumberType::' . $type);
+		return defined('\libphonenumber\PhoneNumberType::' . strtoupper($type));
 	}
 
 }