如何在WordPress自定义meta框中保存复选框状态（）

【如何在WordPress自定义meta框中保存复选框状态（）】我已经编写了以下代码, 但不会保存状态。该复选框始终恢复为选中状态：

< ?php/*META BOXES*/ function add_film_meta_boxes() { add_meta_box('film_meta_data', 'Film info:', 'film_meta_box_callback', 'film', 'advanced', 'high'); }function film_meta_box_callback( $post ) { wp_nonce_field('save_film_meta_data', 'spanish_meta_box_nonce'); $spanish = get_post_meta( $post-> ID, '_spanish_value_key', true); echo '< label> Subtitles: < /label> '; $spanish_subtitle_field = get_post_meta($post-> ID, 'spanish_subtitle_field', true); if($spanish_subtitle_field == "yes") {$spanish_subtitle_checked = 'checked="checked"'; } else {$spanish_subtitle_checked = ''; }echo '< label> < input type="checkbox" id="spanish_subtitle_field" name="spanish_subtitle_field" value="http://www.srcmini.com/yes" '.$spanish_subtitle_checked.' /> < /label> < label for="spanish_subtitle_field" style="font-weight:normal !important; "> spanish & nbsp; < /label> '; }function save_film_meta_data ($post_id) { if ( defined('DOING_AUTOSAVE') & & DOING_AUTOSAVE ) return; if ( ! current_user_can( 'edit_post', $post_id )) return; if( ! isset($_POST['spanish_meta_box_nonce']) ) return; if ( ! wp_verify_nonce($_POST['spanish_meta_box_nonce'], 'save_film_meta_data') ) return; if ( ! isset( $_POST['spanish_subtitle_field'])) return; $spanish = isset($_POST['spanish_subtitle_field']) ? 'on' : 'off'; update_post_meta($post_id, '_spanish_value_key', $spanish); } ?>

该代码包含在我的functions.php文件中。
#1这行是错误的, 这会使你的metabox的值为” on” 或” off” 。

$spanish = isset($_POST['spanish_subtitle_field']) ? 'on' : 'off';

当你检查是否被选中时, 你正在寻找一个” 是” 值。

if($spanish_subtitle_field == "yes") {$spanish_subtitle_checked = 'checked="checked"'; } else {$spanish_subtitle_checked = ''; }

因此, 请尝试此新功能并检查是否有效：

function save_film_meta_data($post_id){ if(! isset($_POST['spanish_meta_box_nonce'])){ return; } if(!wp_verify_nonce($_POST['spanish_meta_box_nonce'], 'save_film_meta_data')){ return; } if( defined('DOING_AUTOSAVE') & & DOING_AUTOSAVE){ return; } if(! current_user_can('edit_post', $post_id)){ return; } if( ! isset($_POST['spanish_subtitle_field'])){ return; } $my_data = http://www.srcmini.com/isset($_POST['spanish_subtitle_field']) ? $_POST['spanish_subtitle_field'] : 'no'; update_post_meta($post_id, '_spanish_value_key', $my_data); }