對於我的Wordpress插件選項頁面,我想使用複選框來設置選項。我正在使用此代碼將其添加到選項頁面,並且運行良好。除此之外,我希望複選框默認設置爲未選中狀態。我該怎麼做呢?複選框默認未選中
public function id_number_callback()
{
printf(
'<input id="%1$s" name="cus_func_option[%1$s]" type="checkbox" %2$s" />',
'add_image_dimesions',
checked(isset($this->options['add_image_dimesions']), true, false)
);
編輯:完整的代碼我想用的是這個
class MySettingsPage
{
/**
* Holds the values to be used in the fields callbacks
*/
private $options;
/**
* Start up
*/
public function __construct()
{
add_action('admin_menu', array($this, 'add_plugin_page'));
add_action('admin_init', array($this, 'page_init'));
}
/**
* Add options page
*/
public function add_plugin_page()
{
// This page will be under "Settings"
add_options_page(
'Settings Admin',
'Custom functions',
'manage_options',
'cus-func-admin',
array($this, 'create_admin_page')
);
}
/**
* Options page callback
*/
public function create_admin_page()
{
// Set class property
$this->options = get_option('cus_func_option');
?>
<div class="wrap">
<?php screen_icon(); ?>
<h2>Custom Functions</h2>
<form method="post" action="options.php">
<?php
// This prints out all hidden setting fields
settings_fields('cus_func_group');
do_settings_sections('cus-func-admin');
submit_button();
?>
</form>
</div>
<?php
}
/**
* Register and add settings
*/
public function page_init()
{
register_setting(
'cus_func_group', // Option group
'cus_func_option', // Option name
array($this, 'sanitize') // Sanitize
);
add_settings_section(
'setting_section_id', // ID
'Which Custom Functions do you want to use?', // Title
array($this, 'print_section_info'), // Callback
'cus-func-admin' // Page
);
add_settings_field(
'add_image_dimesions', // ID
'Add image dimesions to the Media Page', // Title
array($this, 'id_number_callback'), // Callback
'cus-func-admin', // Page
'setting_section_id' // Section
);
add_settings_field(
'title',
'Title',
array($this, 'title_callback'),
'cus-func-admin',
'setting_section_id'
);
}
/**
* Sanitize each setting field as needed
*
* @param array $input Contains all settings fields as array keys
*/
public function sanitize($input)
{
$new_input = array();
if(isset($input['add_image_dimesions']))
$new_input['add_image_dimesions'] = absint($input['add_image_dimesions']);
if(isset($input['title']))
$new_input['title'] = sanitize_text_field($input['title']);
return $new_input;
}
/**
* Print the Section text
*/
public function print_section_info()
{
print 'Pick your Custom Functions below:';
}
/**
* Get the settings option array and print one of its values
*/
public function id_number_callback()
{
printf(
'<input id="%1$s" name="cus_func_option[%1$s]" type="checkbox" %2$s" />',
'add_image_dimesions',
checked(isset($this->options['add_image_dimesions']), true, false)
);
}
/**
* Get the settings option array and print one of its values
*/
public function title_callback()
{
printf(
'<input id="%1$s" name="cus_func_option[%1$s]" type="checkbox" %2$s />',
'title',
checked(isset($this->options['title']), true, false)
);
}
}
if(is_admin())
$my_settings_page = new MySettingsPage();
代碼按預期工作。首次加載自定義頁面時,複選框爲「未選中」。如果我們選中/取消選中並保存,則可以保存。我看不出有什麼問題。 (?) – brasofilo
恐怕你是對的。我只是把它安裝在一個新的網站上,而且複選框確實是空的。也許還有一些保存的數據來自以前的試驗。但至少它讓我更瞭解整個事情,儘管我再次陷入困境。請期待我的下一個問題。越來越接近我的目標,並且樂於更多地瞭解WP插件。 – WendiT
你會在[wordpress.se]找到更多的插件開發者。標籤[**''**](http://wordpress.stackexchange.com/questions/tagged/plugin-development?sort=frequent&pageSize=50)有一些相當不錯的材料。 –
brasofilo