Accessor/mutator settings functions.

includes/class-settings.php

@@ -133,8 +133,14 @@ class Settings {
 
     // Output settings page
 
-    public function render():void {
+    private function load_options():bool {
+        if (isset($this->options) && is_array($this->options)) return false;
         $this->options = get_option($this->get_option_group());
+        return true;
+    }
+
+    public function render():void {
+        $this->load_options();
         echo '<div class="wrap">';
         printf('<h1>%s</h1>', esc_html($this->get_page_title()));
         echo '<form method="post" action="options.php">';
@@ -161,6 +167,30 @@ class Settings {
         ]), admin_url(self::PARENT_SLUG));
     }
 
+    // Field Accessors
+    public function get_field(string $name, string $default = ''):string {
+        $this->load_options();
+        return $this->options[$name] ?? $default;
+    }
+
+    public function set_field(string $name, string $value):bool {
+        $this->load_options();
+        $this->options[$name] = sanitize_text_field($value);
+        return update_option($this->get_option_group(), $this->options);
+    }
+
+    public static function get(string $name, string $default = ''):string {
+        return self::instance()->get_field($name, $default);
+    }
+
+    public static function set(string $name, string $value):bool {
+        return self::instance()->set_field($name, $value);
+    }
+
+    public static function exists(string $name):bool {
+        return !empty(self::get($name));
+    }
+
 }
 
 Settings::instance();