Add setting

src/ASMP.php

@@ -0,0 +1,16 @@
+<?php declare( strict_types=1 );
+
+/**
+ * ASMP WordPress Integration Plugin.
+ *
+ * @package   ASMP\WordPressIntegration
+ * @license   MIT
+ * @link      https://www.alainschlesser.com/asmp
+ */
+
+namespace ASMP\WordPressIntegration;
+
+interface ASMP {
+	public const VERSION = 'ASMP_DISCOVERY_VERSION';
+	public const ENDPOINT = 'ASMP_DISCOVERY_ENDPOINT';
+}

src/Plugin.php

@@ -179,6 +179,7 @@ private function get_service_classes(): array {
 			// Add services as FQCNs here.
 			ViewFactory::class,
 			SampleService::class,
+			SettingsGeneralService::class,
 		] );
 	}
 }

src/SettingsGeneralService.php

@@ -0,0 +1,62 @@
+<?php
+/**
+ * ASMP WordPress Integration Plugin.
+ *
+ * @package   ASMP\WordPressIntegration
+ * @license   MIT
+ * @link      https://www.alainschlesser.com/asmp
+ */
+
+namespace ASMP\WordPressIntegration;
+
+use ASMP\WordPressIntegration\Infrastructure\Registerable;
+use ASMP\WordPressIntegration\Infrastructure\Service;
+use ASMP\WordPressIntegration\Infrastructure\ViewFactory;
+
+/**
+ *
+ */
+final class SettingsGeneralService implements Service, Registerable {
+
+	/** @var ViewFactory */
+	private $view_factory;
+
+	/**
+	 * Instantiate a SampleService object.
+	 *
+	 * @param ViewFactory $view_factory View factory to use for instantiating
+	 *                                  the views.
+	 */
+	public function __construct( ViewFactory $view_factory ) {
+		$this->view_factory = $view_factory;
+	}
+
+	/**
+	 * Register the service.
+	 *
+	 * @return void
+	 */
+	public function register(): void {
+		if ( ! isset( $_SERVER[ ASMP::VERSION ] ) ) {
+		// TODO	return;
+		}
+
+		// TODO
+		$_SERVER[ ASMP::ENDPOINT ] = [ '5.6', '7.0', '7.2' ];
+
+		add_action( 'admin_init', function() {
+			\add_settings_field( 'asmp', esc_html__( 'PHP Versions', 'asmp' ), [ $this, 'render' ], 'general' );
+		} );
+	}
+
+	/**
+	 * Render the admin notice.
+	 *
+	 * @return void
+	 */
+	public function render(): void {
+		echo $this->view_factory->create( 'views/setting' )
+		                        ->render();
+	}
+}
+

views/setting.php

@@ -0,0 +1,7 @@
+<select id="php_version" name="php_version">
+<?php
+foreach ( $_SERVER[ ASMP\WordPressIntegration\ASMP::ENDPOINT ] as $version ) :
+	printf( '<option value="%1$s">%1$s</option>', $version );
+endforeach;
+?>
+</select>