Title: Save array into WordPress options
Last modified: August 22, 2016

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# Save array into WordPress options

 *  Resolved [Yudhistira Mauris](https://wordpress.org/support/users/maurisrx/)
 * (@maurisrx)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/save-array-into-wordpress-options/)
 * Hello,
 * I am having a problem when saving an array into WordPress options. Basically,
   I have two different settings pages that will be saved into one database row 
   as an array. These two different pages is registered using one `register_setting()`
   and two separate `add_settings_section()`.
 * In my sanitizing function, all data are saved correctly except one `select` element
   which accept multiple selections. It will be saved as multidimensional array 
   in the one database row. Here is my code to save that array.
 *     ```
       public function sanitize_options( $input ) {
   
           $options = get_option( 'prfx_options' );
   
           if ( isset( $input['post_types'] ) && count( $input['post_types'] ) > 0 ) {
               $input['post_types'] = array_map( 'esc_attr', $input['post_types'] );
           } elseif {
               $input['post_types'] = array();
           }
   
           if ( is_array( $wpsdcp_options ) ) {
               return array_merge( $options, apply_filters( 'prfx_options_sanitization', $input ) );
       	} else {
       		return apply_filters( 'prfx_options_sanitization', $input );
       	}
       }
       ```
   
 * It should accept 0 or more selections. It works fine when there’s at least one
   selection that is selected. But when there’s nothing that is selected, it won’t
   save it. I’ve tried `count()` and `empty()` but neither would work. Is there 
   something wrong with my code?
 * Thank you in advance!
    Mauris

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Moderator [bcworkz](https://wordpress.org/support/users/bcworkz/)
 * (@bcworkz)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/save-array-into-wordpress-options/#post-5660919)
 * `array_key_exists ( 'post_types' , $input )` will distinguish between something
   selected and nothing selected, assuming `$input` is analogous to `$_POST`.
 * I think the other problem is serializing an empty array. I haven’t verified it,
   but serializing an empty array may not save anything at all. You should try saving`
   array("")` which should serialize into an empty string instead of nothing. Naturally
   your processing code would need to account for the different representation of
   nothing.
 *  Thread Starter [Yudhistira Mauris](https://wordpress.org/support/users/maurisrx/)
 * (@maurisrx)
 * [11 years, 5 months ago](https://wordpress.org/support/topic/save-array-into-wordpress-options/#post-5660976)
 * Thank you bcworkz for the answer. I’ve decided to make the settings page into
   one page, then I removed the isset logic for all inputs and it works well.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Save array into WordPress options’ is closed to new replies.

## Tags

 * [function](https://wordpress.org/support/topic-tag/function/)
 * [option](https://wordpress.org/support/topic-tag/option/)
 * [php](https://wordpress.org/support/topic-tag/php/)
 * [setting](https://wordpress.org/support/topic-tag/setting/)

 * In: [Hacks](https://wordpress.org/support/forum/plugins-and-hacks/hacks/)
 * 2 replies
 * 2 participants
 * Last reply from: [Yudhistira Mauris](https://wordpress.org/support/users/maurisrx/)
 * Last activity: [11 years, 5 months ago](https://wordpress.org/support/topic/save-array-into-wordpress-options/#post-5660976)
 * Status: resolved

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