wordpress

class Podesavanja {

	private $podesavanja_options;

	public function __construct() {
		add_action( 'admin_menu', array( $this, 'podesavanja_add_plugin_page' ) );
		add_action( 'admin_init', array( $this, 'podesavanja_page_init' ) );
	}

	public function podesavanja_add_plugin_page() {
		add_menu_page(
			'Podesavanja', // page_title
			'Podesavanja', // menu_title
			'manage_options', // capability
			'podesavanja', // menu_slug
			array( $this, 'podesavanja_create_admin_page' ), // function
			'dashicons-admin-generic', // icon_url
			3 // position
		);
	}

	public function podesavanja_create_admin_page() {
		$this->podesavanja_options = get_option( 'podesavanja_option_name' ); ?>

		<div class="wrap">
			<h2>Podesavanja</h2>
			<p>Podesavanja </p>
			<?php settings_errors(); ?>

			<form method="post" action="options.php">
				<?php
					settings_fields( 'podesavanja_option_group' );
					do_settings_sections( 'podesavanja-admin' );
					submit_button();
				?>
			</form>
		</div>
	<?php }

	public function podesavanja_page_init() {
		register_setting(
			'podesavanja_option_group', // option_group
			'podesavanja_option_name', // option_name
			array( $this, 'podesavanja_sanitize' ) // sanitize_callback
		);

		add_settings_section(
			'podesavanja_setting_section', // id
			'Settings', // title
			array( $this, 'podesavanja_section_info' ), // callback
			'podesavanja-admin' // page
		);

		add_settings_field(
			'hide_sidebar_0', // id
			'Hide sidebar', // title
			array( $this, 'hide_sidebar_0_callback' ), // callback
			'podesavanja-admin', // page
			'podesavanja_setting_section' // section
		);
	}

	public function podesavanja_sanitize($input) {
		$sanitary_values = array();
		if ( isset( $input['hide_sidebar_0'] ) ) {
			$sanitary_values['hide_sidebar_0'] = $input['hide_sidebar_0'];
		}

		return $sanitary_values;
	}

	public function podesavanja_section_info() {

	}

	public function hide_sidebar_0_callback() {
		printf(
			'<input type="checkbox" name="podesavanja_option_name[hide_sidebar_0]" id="hide_sidebar_0" value="hide_sidebar_0" %s> <label for="hide_sidebar_0">Option to hide the sidebar</label>',
			( isset( $this->podesavanja_options['hide_sidebar_0'] ) && $this->podesavanja_options['hide_sidebar_0'] === 'hide_sidebar_0' ) ? 'checked' : ''

		);


	}


}
if ( is_admin() )
	$podesavanja = new Podesavanja();