Actualización

main/inc/lib/formvalidator/Rule/Date.php

@@ -0,0 +1,24 @@
+<?php
+/* For licensing terms, see /license.txt */
+/** @author Bart Mollet, Julio Montoya */
+
+/**
+ * Class HTML_QuickForm_Rule_Date.
+ */
+class HTML_QuickForm_Rule_Date extends HTML_QuickForm_Rule
+{
+    /**
+     * Check a date.
+     *
+     * @see HTML_QuickForm_Rule
+     *
+     * @param string $date    example 2014-04-30
+     * @param array  $options
+     *
+     * @return bool True if date is valid
+     */
+    public function validate($date, $options)
+    {
+        return api_is_valid_date($date, 'Y-m-d');
+    }
+}