Validate User Input and report input errors

types/WideAngleValidated.php

@@ -0,0 +1,49 @@
+<?php
+class WideAngleValidated {
+
+  private $name;
+  private $value;
+  private $normalized;
+  private $error;
+  private $isValid;
+
+  private function __construct($name, $value, $normalized, $error, $isValid) {
+    $this->name = $name;
+    $this->value = $value;
+    $this->normalized = $normalized;
+    $this->error = $error;
+    $this->isValid = $isValid;
+  }
+
+  public static function createValid($name, $value, $normalized) {
+    return new self($name, $value, $normalized, null, true);
+  }
+
+  public static function createInvalid($name, $value, $error) {
+    return new self($name, $value, null, $error, false);
+  }
+
+  public function get_name() {
+    return $this->name;
+  }
+
+  public function get_value() {
+    if($this->normalized !== null) {
+      return $this->normalized;
+    }
+    return $this->value;
+  }
+
+  public function get_error() {
+    if(!$this->isValid) {
+      return $this->error;
+    }
+    return null;
+  }
+
+  public function is_valid() {
+    return $this->isValid;
+  }
+
+}
+?>