下面是完成此操作的完整代码示例。参见参考link 而且
// Add term page
function pippin_taxonomy_add_new_meta_field() {
// this will add the custom meta field to the add new term page
?>
<div class="form-field">
<label for="term_meta[custom_term_meta]"><?php _e( \'Example meta field\', \'pippin\' ); ?></label>
<?php wp_editor( $content,\'term_meta[custom_term_meta]\') ?>
<p class="description"><?php _e( \'Enter a value for this field\',\'pippin\' ); ?></p>
</div>
<?php
}
add_action( \'category_add_form_fields\', \'pippin_taxonomy_add_new_meta_field\', 10, 2 );
add_action( \'category_add_form_fields\', \'pippin_taxonomy_add_new_meta_field\', 10, 2 );
add_action( \'genres_add_form_fields\', \'pippin_taxonomy_add_new_meta_field\', 10, 2 );
// Edit term page
function pippin_taxonomy_edit_meta_field($term) {
// put the term ID into a variable
$t_id = $term->term_id;
// retrieve the existing value(s) for this meta field. This returns an array
$term_meta = get_option( "taxonomy_$t_id" ); ?>
<tr class="form-field">
<th scope="row" valign="top"><label for="term_meta[custom_term_meta]"><?php _e( \'Example meta field\', \'pippin\' ); ?></label></th>
<td>
<?php $content = esc_attr( $term_meta[\'custom_term_meta\'] ) ? esc_attr( $term_meta[\'custom_term_meta\'] ) : \'\';
wp_editor( $content,\'term_meta[custom_term_meta]\') ?>
<p class="description"><?php _e( \'Enter a value for this field\',\'pippin\' ); ?></p>
</td>
</tr>
<?php
}
add_action( \'category_edit_form_fields\', \'pippin_taxonomy_edit_meta_field\', 10, 2 );
// Save extra taxonomy fields callback function.
function save_taxonomy_custom_meta( $term_id ) {
if ( isset( $_POST[\'term_meta\'] ) ) {
$t_id = $term_id;
$term_meta = get_option( "taxonomy_$t_id" );
$cat_keys = array_keys( $_POST[\'term_meta\'] );
foreach ( $cat_keys as $key ) {
if ( isset ( $_POST[\'term_meta\'][$key] ) ) {
$term_meta[$key] = $_POST[\'term_meta\'][$key];
}
}
// Save the option array.
update_option( "taxonomy_$t_id", $term_meta );
}
}
add_action( \'edited_category\', \'save_taxonomy_custom_meta\', 10, 2 );
add_action( \'create_category\', \'save_taxonomy_custom_meta\', 10, 2 );
add_action( \'edited_genres\', \'save_taxonomy_custom_meta\', 10, 2 );
add_action( \'create_genres\', \'save_taxonomy_custom_meta\', 10, 2 );