Validators for Form Fields

tasks/oop/classes/formValidator/formValidator.php

@@ -0,0 +1,61 @@
+<?php
+class FormValidator
+{
+  /*
+  * Private members
+  */
+
+  private array $fields;
+
+  /*
+  * Constructor
+  */
+
+  public function __construct(FieldValidator ...$fields)
+  {
+    $this->fields = $fields;
+  }
+
+  /*
+  * Fluent Style
+  */
+
+  public static function create(FieldValidator ...$fields)
+  {
+    return new FormValidator(...$fields);
+  }
+
+  /*
+  * Methods
+  */
+
+  public function isValid()
+  {
+    foreach ($this->fields as $field) {
+      if (!$field->isValid) return false;
+    }
+
+    return true;
+  }
+
+  public function getErrors()
+  {
+    $errors = [];
+
+    foreach ($this->fields as $field) {
+      if (!$field->isValid()) array_push($errors, $field->getError());
+    }
+
+    return $errors;
+  }
+
+  public function getField(string $name)
+  {
+    $field = current(array_filter($this->fields, fn ($field) => strcmp($field->getName(), $name) === 0));
+    if ($field !== false) {
+      return $field;
+    }
+
+    return "No field named $name";
+  }
+}