To use setting option

To use setting option

function options_page_function_name(){
 
     add_options_page( 'manu_title', 'menu name', 'manage_options', 'option-page', 'another_page_function_name', plugins_url( 'plugin_folder_name/images/icon.png' ),8 );
 
              
}
add_action('admin_menu','options_page_function_name');
 
  // 4. Add setting option by used function. 
function register_settings_function_name() {
// Register settings and call sanitation functions
// 4. Add register setting. 
    register_setting( 'register_settings_name', 'demo_options_default', 'jeba_validate_options' );
}
 
add_action( 'admin_init', 'register_settings_function_name' );  
 
 
       
// 2. Add default value array. 
$demo_options_default = array(
    'jeba_use_demo' => 300,
    'jeba_control_radio_mode' => false,
);
 
  /*radio bottom option */
     
    $jeba_control_radio_mode=array(
      'scroll_up_radio_yes'=>array(
        'value'=>'true',
        'label'=>'Active your single items'
      ),  
 
      'scroll_up_radio_no'=>array(
        'value'=>'false',
        'label'=>'Deactive your single items'
      ),     
     
    );
 
    if ( is_admin() ) : // 3. Load only if we are viewing an admin page 
 
 //1.2
 function another_page_function_name(){?>
  
 <?php // 5.1. Add settings API hook under form action.  ?>
<?php global $demo_options_default,$jeba_control_radio_mode ;
 
 
if ( ! isset( $_REQUEST['updated'] ) )
    $_REQUEST['updated'] = false; // This checks whether the form has just been submitted. 
 
?>
      
      
   <div class="wrap">
      <h2>scroll up setting</h2>
                  <?php if ( false !== $_REQUEST['updated'] ) : ?>
        <div class="updated fade"><p><strong><?php _e( 'Options saved' ); ?></strong></p></div>
        <?php endif; // 5.2. If the form has just been submitted, this shows the notification ?>  
       
    <form action="options.php" method="post">  
    <?php // 6.1 Add settings API hook under form action.  ?>
<?php $settings = get_option( 'demo_options_default', $demo_options_default ); ?>
 
<?php settings_fields( 'register_settings_name' );
/* 6.2  This function outputs some hidden fields required by the form,
including a nonce, a unique number used to ensure the form has been submitted from the admin page and not somewhere else, very important for security */ ?>
 
    <table class="form-table">
        <tbody>
            <tr valign="top">
                <th scope="row"><label for="jeba_use_demo">scroll Distance</label></th>
                    <td>
                        <input type="text" class="" value="<?php echo stripslashes($settings['jeba_use_demo']); ?>" id="jeba_use_demo" name="demo_options_default[jeba_use_demo]"/><p class="description">Distance from top/bottom before showing element (px)<br/>Best position is 200px to 300px</p>
                    </td>
            </tr>
             
            <tr valign="top">
                <th scope="row"><label for="jeba_control_radio_mode">single items mode</label></th>
                    <td>
                    <?php foreach ( $jeba_control_radio_mode as $activate): ?>
                    <input type="radio" id="<?php echo $activate['value']; ?>" name="demo_options_default[jeba_control_radio_mode]"  value="<?php esc_attr_e($activate['value']); ?>"<?php checked($settings['jeba_control_radio_mode'],$activate['value']); ?>  />
                    <label for="<?php echo $activate['value']; ?>"><?php echo $activate ['label']; ?></label>
                    <p class="description">You can add single items true or false</p><br/>
                    <?php endforeach; ?>
                </td>
            </tr>
         
    </tbody>
 
</table>
 
 
<p class="submit">
<input type="submit" value="Save Changes" class="button button-primary" id="submit" name="submit">
</p>
 
</form>
                
</div>
      
      
    <?php 
     }
  // 7. Add validate options. 
function jeba_validate_options( $input ) {
    global $demo_options_default,$jeba_control_radio_mode;
 
    $settings = get_option( 'demo_options_default', $demo_options_default );
    $input['jeba_use_demo']=wp_filter_post_kses($input['jeba_use_demo']);
     // We strip all tags from the text field, to avoid vulnerablilties like XSS
    $prev=$settings['layout_only'];
    if(!array_key_exists($input['layout_only'],$jeba_control_radio_mode))
    $input['layout_only']=$prev;
 
 return $input;
}
    endif;  //3. EndIf is_admin()   
     
// 8.data danamic
function jeba_use_activator(){?>
<?php global $demo_options_default;
 
$bappiscroll_up_settings=get_option('demo_options_default','$demo_options_default'); ?>
 
    <!--use this where need dynamic data-->
    <?php echo $bappiscroll_up_settings['jeba_use_demo']; ?>
    <?php echo $bappiscroll_up_settings['jeba_control_radio_mode']; ?>
 
<?php
}
 
add_action('wp_head','jeba_use_activator');



============Note: Here show two option for jeba_use_demo and jeba_control_radio_mode . Can use more option.===========