我正在使用apptheme jobroller主题，并试图操纵其编辑简历页面。我想展示一个特定的分类法(resume_specialities) 作为一组多个复选框，使用户可以选中多个选项。我只是不知道如何保存这些多个选择。在三个不同的php文件中有三段相关代码。以下代码是它们的相关部分：

File 1 （tpl edit resume.php）：

<?php
if ($resume_id>0) :

    // Get job details
    $resume_details = get_post($resume_id);

    if (!isset($_POST[\'save_resume\'])) :
        // Set post data
        $terms = wp_get_post_terms($resume_id, \'resume_specialities\');
        $terms_array = array();
        foreach ($terms as $t) $terms_array[] = $t->name;
        $posted[\'specialities\'] = implode(\',\', $terms_array);

endif;
?>

<?php
$specs_array = explode(\',\', $posted[\'specialities\']);

<p><?php _e(\'Specialties\', APP_TD); ?></p>
<?php $all_specialities = get_terms( \'resume_specialities\', array( \'hide_empty\' => false ) ); ?>

<?php foreach ($all_specialities as $single_speciality) : ?>
    <label for="specialities">
    <input type="checkbox" name="specialities[]"
        id="speciality-<?php echo $single_speciality->term_id; ?>"  
        value="<?php echo $single_speciality->name; ?>"
    <?php if ( in_array( $single_speciality->name, $specs_array ) ) echo \' checked="checked"\'; ?> />
    <?php echo $single_speciality->name; ?></label>
    <br />
<?php endforeach; ?>

if (isset($posted[\'specialities\'])) :
    $thetags = explode(\',\', $posted[\'specialities\']);
    $thetags = array_map(\'trim\', $thetags);

    if (sizeof($thetags)>0) wp_set_object_terms($resume_id, $thetags, \'resume_specialities\');           
endif;