Wordpress customizer multiselect as custom customizer 29.09.19

$wp_customize->add_setting('show_on_page', array(
    'default'    => '1'
));
$wp_customize->add_control(
    new Multiple_Select(
        $wp_customize,
        'multiple_select_setting',
        array(
            'label'     => __('page1', 'dd_theme'),
            'section' => 'footer_bg',
            'settings'  => 'show_on_page',
            'type'      => 'select',
            'type'     => 'multiple-select', // The $type in our class                                                                                       
            'choices'  => array( 'google' => 'Google', 'bing' => 'Bing' ) // Your choices                                                                    
        )
    )
);

}
class Multiple_Select extends WP_Customize_Control {
    public $type = 'multiple-select';
    public function render_content() {

if ( empty( $this->choices ) ):
        return;
    endif;

?>
        <label>
            <span class="customize-control-title"><?php echo esc_html( $this->label ); ?></span>
            <select <?php $this->link(); ?> multiple="multiple" style="height: 100%;">
                <?php
                    foreach ( $this->choices as $value => $label ) {
                        $selected = ( in_array( $value, $this->value() ) ) ? selected( 1, 1, false ) : '';
                        echo '<option value="' . esc_attr( $value ) . '"' . $selected . '>' . $label . '</option>';
                    }
                ?>
            </select>
        </label>
    <?php }
}

https://jayj.dk/multiple-select-lists-theme-customizer/

Anonymous

to get the list of all pages and make a multi select:
$p = array();
foreach (get_pages() as $page_data):
  $p[$page_data->ID] = $page_data->post_title;
endforeach;

$wp_customize->add_setting('show_on_page');
$wp_customize->add_control(
    new Multiple_Select(
        $wp_customize,
        'multiple_select_setting',
        array(
            'label'     => __('Pages to show', 'dd_theme'),
            'section' => 'footer_bg',
            'settings'  => 'show_on_page',
            'type'      => 'select',
            'type'     => 'multiple-select', // The $type in our class                                                                                                                                                                                                                                                       
            'choices'  => $p
        )
    )
);

}
class Multiple_Select extends WP_Customize_Control {
    public $type = 'multiple-select';
    public function render_content() {

if ( empty( $this->choices ) ):
        return;
    endif;

29.09.19

Anonymous

29.09.19

Anonymous

Wordpress customizer multiselect as custom customizer 29.09.19

Information Epoch 1780677879