Bug in "jr_saoe_get_post_metadata" function

I’ve found the following bug in “Shortcode Anywhere and Everywhere” includes/public.php line 71

return jr_saoe_maybe_array( maybe_unserialize( $meta_cache[$meta_key][0] ) );

It should be as follows:

return array( jr_saoe_maybe_array( maybe_unserialize( $meta_cache[$meta_key][0] ) ) );

This issues breaks the use of arrays in post meta data site wide.

The following PHP Notice is produced:

Notice: Undefined offset: 0 in /wp-includes/meta.php on line 489

You can test the issue with the following, put it in your functions PHP and then navigate to “/testing-page/”

// turn on debug
if ( ! defined( 'WP_DEBUG' ) ) {
    define( 'WP_DEBUG', true );
}
add_action( 'init', 'my_init' );
function my_init() {
    // create a test page so as to set meta data (page created only once)
    $page = get_page_by_title( 'Testing Page' );
    if ( isset( $page->ID ) ) {
        $page_id = $page->ID;
    } else {
        $page_id = wp_insert_post( array (
            'post_content' => 'Testing, delete when finished',
            'post_title' => 'Testing Page',
            'post_type' => 'page',
            'post_status' => 'publish',
        ) );
    }
    // THIS DOESN'T WORK
    // create some meta data, the issue is with array values
    add_post_meta( $page_id, 'my_sample_arr', array( 'foo' => 'bar', 'baz' => 'zap' ), true );
    // get the meta data, this should produce NULL even though the data is set correctly
    $meta = get_post_meta( $page_id, 'my_sample_arr', true );
    echo '<pre style="padding-left:300px;"> page meta arr value is: '; var_dump( $meta ); echo '</pre>';

    // THIS WORKS
    // create some meta data, non array data
    add_post_meta( $page_id, 'my_sample_str', 'foobar', true );
    // get the meta data, this should produce NULL even though the data is set correctly
    $meta = get_post_meta( $page_id, 'my_sample_str', true );
    echo '<pre style="padding-left:300px;"> page meta str value is: '; var_dump( $meta ); echo '</pre>';
}

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