allow user to select pages from dropdown in my plugin

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I have a plugin and a part in it allows user to select the page plugin works on by specifying the id of the page. But I want that he should be able to select the page from the pages available in the website.

This can be implemented by a drop down or check boxes.

my code looks like this in the main file of plugin :

register_setting( 'rex_plug_options', 'rex_plug_options', 'rex_plug_settings_validate' );
add_settings_field('rex_plugbox_text_exit_pop_selected_pages', 'Select Pages (comma seprated page ID E.G.:  12,32,434)', 'rex_plugbox_text_exit_pop_selected_pages', 'rex_plug_box', 'rex_plug_main_box');
<?php
}
function rex_plugbox_text_exit_pop_selected_pages(){
global $rex_plug_options;
if(!isset($rex_plug_options["rex_plugbox_text_exit_pop_selected_pages"]))   {
    $rex_plug_options["rex_plugbox_text_exit_pop_selected_pages"] = "";
}
?>
    <textarea id="rex_plugbox_text_exit_pop_selected_pages" type="text" name="rex_plug_options[rex_plugbox_text_exit_pop_selected_pages]" ><?php echo sanitize_text_field( $rex_plug_options["rex_plugbox_text_exit_pop_selected_pages"] ); ?></textarea>

<?php
}

Now this works with the text area and all I want it to be a dropdown. how can I do that ?

I tried doing this :

 <select name="rex_plug_options[page_id]">
                        <?php
                        if( $pages = get_pages() ){
                            foreach( $pages as $page ){
                                echo '<option value="' . $page->ID . '" ' . selected( $page->ID, $options['page_id'] ) . '>' . $page->post_title . '</option>';
                            }
                        }
                        ?>
                    </select>

this display the select field but not sure how to update the database option array field with what is selected in this page.

1 Answer
1

Change your code to this

register_setting( 'rex_plug_options', 'rex_plug_options', 'rex_plug_settings_validate' );
add_settings_field('rex_plugbox_text_exit_pop_selected_pages', 'Select Pages', 'rex_plugbox_text_exit_pop_selected_pages', 'rex_plug_box', 'rex_plug_main_box');
//with selectbox you cannot select multiple pages. If you need that try checkbox

function rex_plugbox_text_exit_pop_selected_pages(){
    global $rex_plug_options;
    if(!isset($rex_plug_options["rex_plugbox_text_exit_pop_selected_pages"]))   {
        $rex_plug_options["rex_plugbox_text_exit_pop_selected_pages"] = "";
    }
?>
    <select id="rex_plugbox_text_exit_pop_selected_pages" name="rex_plug_options[rex_plugbox_text_exit_pop_selected_pages]">
    <?php
    if( $pages = get_pages() ){
        foreach( $pages as $page ){
            echo '<option value="' . $page->ID . '" ' . selected( $page->ID, $rex_plug_options["rex_plugbox_text_exit_pop_selected_pages"] ) . '>' . $page->post_title . '</option>';
        }
    }
    ?>
    </select>
<?php
}

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