The data in my custom settings page can't be saved - php

Question

The data can not be saved
I am trying to make settings pages for each custom post type so that I can insert specified posts to archive pages of those post types.
I made this settings page using Wordpress Settings API.
But even after I input some values and clicked the save button.
The data can not be saved on DB and no data are displayed in these forms after refreshing the page.
I also confirmed the database has not created a record of the data. 'post_type_top' should be the option_name in DB.
Here is my class file to implement this settings page.
Does anyone figure out what kind of error this has?
I am temporarily commented out some sanitization process in my code.
<?php
class CreateSettingsPage
{
private $options;
private $post_type;
private $settings = array();
public function __construct()
{
add_action('admin_menu', array($this, 'add_settings_page'));
add_action('admin_init', array($this, 'settings_page_init'));
$this->post_type = $_GET['post_type'];
$this->settings = array(
'page' => 'post-type-settings-admin',
'page_title' => __('Post Type Settings', 'tcd-w'),
'page_slug' => 'post_type_top',
'option_name' => 'post_type_top',
'option_group' => 'post_type_top_option_group',
'sections' => array(
array(
'id_prefix' => 'post_type_settings',
'section_title' => __('Add Links to Post Type Top', 'tcd-w'),
'section_info' => __('Please input category page slug and post ids which are added to the post type top page', 'tcd-w'),
'fields' => array(
array(
'field_id' => 'input_category_slug',
'field_title' => 'input_category_slug',
'type' => 'input',
),
array(
'field_id' => 'input_post_ids',
'field_title' => 'input_post_ids',
'type' => 'input',
),
),
),
),
);
}
public function add_settings_page()
{
//put a menu within all custom types if apply
$post_types = get_post_types();
foreach ($post_types as $post_type) {
//check if there are any taxonomy for this post type
$post_type_taxonomies = get_object_taxonomies($post_type);
foreach ($post_type_taxonomies as $key => $taxonomy_name) {
$taxonomy_info = get_taxonomy($taxonomy_name);
if (empty($taxonomy_info->hierarchical) || $taxonomy_info->hierarchical !== TRUE)
unset($post_type_taxonomies[$key]);
}
if (count($post_type_taxonomies) == 0)
continue;
if ($post_type == 'post') {
add_submenu_page('edit.php', $this->settings['page_title'], $this->settings['page_title'], 'manage_options', $this->settings['page_slug'] . '_' . $post_type, array($this, 'create_admin_page'));
} elseif ($post_type == 'attachment') {
add_submenu_page('upload.php', $this->settings['page_title'], $this->settings['page_title'], 'manage_options', $this->settings['page_slug'] . '_' . $post_type, array($this, 'create_admin_page'));
} else {
add_submenu_page('edit.php?post_type=' . $post_type, $this->settings['page_title'], $this->settings['page_title'], 'manage_options', $this->settings['page_slug'] . '_' . $post_type, array($this, 'create_admin_page'));
}
}
}
public function create_admin_page()
{
$this->options = get_option($this->settings['option_name']); ?>
<div class="wrap">
<h2><?php echo $this->settings['page_title']; ?></h2>
<p></p>
<?php settings_errors(); ?>
<form method="post" action="options.php">
<?php
settings_fields($this->settings['option_group']);
do_settings_sections($this->settings['page']);
submit_button();
?>
</form>
</div>
<?php }
public function settings_page_init()
{
register_setting(
$this->settings['option_group'], // option_group
$this->settings['sections']['option_name'],
array($this, 'sanitize') // sanitize_callback
);
foreach ($this->settings['sections'] as $section) {
add_settings_section(
$section['id_prefix'] . '_section', // id
$section['section_title'], // title
array($this, 'section_info'), // callback
$this->settings['page'] // page
);
foreach ($section['fields'] as $field) {
add_settings_field(
$field['field_id'] . '_' . $this->post_type, // id
$field['field_title'], // title
array($this, $field['type']), // callback
$this->settings['page'], // page
$section['id_prefix'] . '_section', // section
$field
);
}
}
}
public function sanitize($input)
{
return $input;
// $sanitary_values = array();
// if (isset($input['custom_banner_url_0'])) {
// $sanitary_values['custom_banner_url_0'] = sanitize_text_field($input['custom_banner_url_0']);
// }
// if (isset($input['custom_banner_img_src_1'])) {
// $sanitary_values['custom_banner_img_src_1'] = esc_textarea($input['custom_banner_img_src_1']);
// }
// return $sanitary_values;
}
public function section_info()
{
echo $section['section_info'];
}
public function input($field)
{
printf(
'<input class="regular-text" type="text" name="%s[%s]" id="%s" value="%s">',
$this->settings['option_name'],
$field['field_id'] . '_' . $this->post_type,
$field['field_id'] . '_' . $this->post_type,
isset($this->options[$field['field_id'] . '_' . $this->post_type]) ? esc_attr($this->options[$field['field_id'] . '_' . $this->post_type]) : ''
);
}
public function textarea($field)
{
printf(
'<textarea class="large-text" rows="5" name="%s[%s]" id="%s">%s</textarea>',
$this->settings['option_name'],
$field['field_id'],
$field['field_id'],
isset($this->options[$field['field_id']]) ? esc_attr($this->options[$field['field_id']]) : ''
);
}
}
if (is_admin()) $post_type_settings = new CreateSettingsPage();