bonjour

class/genderfield.php

+<?php
+
+class GenderField extends Field
+{
+    public function html() {
+        // Todo, if isset($_POST[$this->name]) && !$this->validate() => Show a error msg explanation for this line.
+        $html = '<div class="form-group">
+                    <label for="form'.$this->name.'">'.$this->label.'</label>
+                    <select class="form-control" name="'.$this->name.'">';'
+                        <option value="M" selected>Male</option>
+                        <option value="F">Femelle</option>
+                    </select>
+                </div>';
+        return $html;
+}
+
+    public function validate()
+    {
+        $this->value = $_POST[$this->name];
+        return true;
+    }
+
+    public function show() {
+        if ($this->value == 'M') {
+            $html = 'Male';
+        } else {
+            $html = 'Femelle';
+        }
+        return $html; 
+    }
+}