我仔细查看了你的代码，并对其进行了更新，以包括适当的逃生和卫生设施。我怀疑这个问题可能是由于没有逃脱。我还应用了一些格式和WP最佳实践，但在其他方面代码是相同的。
/**
* Meta box display callback.
*
* @param WP_Post $post Current post object.
*/
function wpse_metabox_callback( $post ) {
$service_title = get_post_meta( $post->ID, \'wpp_service_title\', true );
$service = get_post_meta( $post->ID, \'service\', false ); // get as an array ?>
<div id="wpp_meta_inner">
<div>
<div class="wpp-input-container">
<label><?php esc_html_e( \'Title\', \'textdomain\' ); ?></label>
<input type="text" name="wpp_service_title" id="wpp_service_title" value="<?php echo esc_attr( $service_title ); ?>" />
<p><?php esc_html_e( \'Will display default "Scope of Services" if empty.\', \'textdomain\' ); ?></p>
</div>
<div class="wpp-input-container">
<label class="wpp-label-repeater"><?php _e( \'Service Items\', \'textdomain\' ); ?></label>
<?php
wp_nonce_field( \'c_nonce_field\', \'c_wpnonce\' );
$c = 0;
if ( count( $service ) > 0 ) {
if ( ! empty( $service ) ) {
foreach( $service as $service_item_val ) {
foreach( $service_item_val as $service_item ) {
if ( isset( $service_item[\'title\'] ) || isset( $service_item[\'service_item\'] ) ) {
printf(
\'<div class="wpp-repeater-wrapper service">\' .
\'Title: <input class="wpp-repeater-input service" type="text" name="service[%1$s][title]" value="%2$s" />\' .
\'Description: <textarea class="wpp-repeater-input service" name="service[%1$s][service_item]" data-gramm_editor="false" value="">%3$s</textarea><span class="wpp-item-remove service">%4$s</span>\' .
\'</div>\',
esc_attr( $c ),
esc_html( $service_item[\'title\'] ),
esc_textarea( $service_item[\'service_item\'] ),
esc_html( __( \'Remove\', \'textdomain\' ) )
);
$c += 1;
}
}
}
}
}
?>
<span id="services_here"></span>
<div class="wpp-item-add services" style="visibility: hidden; margin-bottom: -20px;"><?php esc_html_e( \'Add Item\', \'textdomain\' ); ?></div>
<div class="wpp-item-add services add-button"><?php esc_html_e( \'Add Service\', \'textdomain\' ); ?></div>
</div>
</div>
<script>
var $ =jQuery.noConflict();
$(document).ready(function() {
var count = <?php echo esc_js( $c ); ?>;
$(".wpp-item-add.services").click(function() {
count = count + 1;
$(\'#services_here\').append(\'<div class="wpp-repeater-wrapper service">Title: <input class="wpp-repeater-input service" type="text" name="service[\'+count+\'][title]" value="" placeholder="" />Description: <textarea class="wpp-repeater-input service" name="service[\'+count+\'][service_item]" data-gramm_editor="false" value="" placeholder=""></textarea><span class="wpp-item-remove service">Remove</span></div>\' );
return false;
});
$(".wpp-item-remove.service").live(\'click\', function() {
$(this).parent().remove();
});
});
</script>
</div><?php
}
保存metabox数据时，
wp_kses_post() 将应用于
$services 阵列：
/**
* Sanitize and save metabox data.
*/
add_action( \'save_post\', \'wpse_save_meta_box\' );
function wpse_save_meta_box( $post_id ) {
if ( defined( \'DOING_AJAX\' ) AND DOING_AJAX ) {
return;
}
if ( ! current_user_can( \'edit_post\', $post_id ) ) {
return;
}
if ( ! isset( $_POST[\'c_wpnonce\'] ) || ! wp_verify_nonce( $_POST[\'c_wpnonce\'], \'c_nonce_field\' ) ) {
return;
}
$allowed_html = array (
\'a\' => array(
\'href\' => array()
) );
$service = isset( $_POST[\'service\'] ) && ! empty( $_POST[\'service\'] ) ? array_map( \'wp_kses_post\', $_POST[\'service\'] ) : array();
update_post_meta( $post_id, \'wpp_service_title\', wp_kses( $_POST[\'wpp_service_title\'], $allowed_html ) );
update_post_meta( $post_id, \'service\', $service );
}
为了完整起见，下面是注册
proposal 岗位类型：
/**
* Register proposal post type.
*/
add_action( \'init\', \'wpse_register_post_type_proposal\' );
function wpse_register_post_type_proposal() {
$args = [
\'label\' => __( \'Proposals\', \'textdomain\' ),
\'public\' => true,
\'publicly_queryable\' => true,
\'show_ui\' => true,
\'show_in_menu\' => true,
\'query_var\' => true,
\'rewrite\' => [ \'slug\' => \'proposal\' ],
\'capability_type\' => \'post\',
\'has_archive\' => true,
\'hierarchical\' => false,
\'menu_position\' => null,
\'supports\' => [ \'title\', \'editor\', \'author\', \'thumbnail\', \'excerpt\', \'comments\' ],
];
register_post_type( \'proposal\', $args );
}
和元框：
/**
* Register meta box
*/
function wpse_register_meta_boxes() {
add_meta_box( \'meta-box-id\', __( \'My Meta Box\', \'textdomain\' ), \'wpse_metabox_callback\', \'proposal\' );
}
add_action( \'add_meta_boxes\', \'wpse_register_meta_boxes\' );
