我正在创建一个有关用户角色功能的迷你插件。我正在尝试通过CheckBox分配功能，因为我已将自定义功能保存在wp_option表中，但是我遇到了一个问题：
如何从wp_option表中获取此自定义功能，并通过CheckBox将其分配给角色。
这是我的PHP代码：
<?php
/*
Plugin Name: Custom Role
Plugin URI: www.customroleandcapability.com
Description: A custom role plugin
Version: 1.0.0
Author: jai
Author URI: www.customroleandcapability.com
*/
register_activation_hook(__FILE__,'activation');
function activation(){
add_role('teacher', __('Teacher'),
array( ));
}
add_action('admin_menu', 'my_menu_pages');
function my_menu_pages(){
add_menu_page('Custom Role', 'Custom Role', 'manage_options', 'my_menu', 'my_menu_output' );
}
function my_menu_output( ) {
global $wp_roles;
if(isset($_POST['submit'])){
unset($_POST['submit']);
echo "<pre>";
print_r($_POST);
echo "</pre>";
$args = array('Administrator_read_posts','Administrator_edit_posts','Administrator_delete_posts','Editor_read_posts', 'Editor_edit_posts','Editor_delete_posts','Author_read_posts','Author_edit_posts','Author_delete_posts', 'Subscriber_read_posts','Subscriber_edit_posts','Subscriber_delete_posts','Administrator_read_pages', 'Administrator_edit_pages','Administrator_delete_pages','Editor_read_pages','Editor_edit_pages','Editor_delete_pages', 'Author_read_pages','Author_edit_pages','Author_delete_pages','Subscriber_read_pages','Subscriber_edit_pages', 'Subscriber_delete_pages','Administrator_read_media','Administrator_edit_media','Administrator_delete_media', 'Editor_read_media','Editor_edit_media','Editor_delete_media','Author_read_media','Author_edit_media', 'Author_delete_media','Subscriber_read_media','Subscriber_edit_media','Subscriber_delete_media','Contributor_read_posts',
'Contributor_edit_posts','Contributor_delete_posts','Contributor_read_pages','Contributor_edit_pages', 'Contributor_delete_pages','Contributor_read_media','Contributor_edit_media','Contributor_delete_media','Teacher_read_posts','Teacher_edit_posts','Teacher_delete_posts','Teacher_read_pages','Teacher_edit_pages','Teacher_delete_pages','Teacher_read_media','Teacher_edit_media','Teacher_delete_media');
foreach($args as $key => $val){
if(!empty($_POST[$val]) && ($_POST[$val] == 1)){
update_site_option( $val, $_POST[$val] );
}else{
update_site_option( $val, '0' );
}
}
echo get_site_option('read_posts');
$current_user = wp_get_current_user();
$user_id = $current_user->ID;
echo 'User ID: ' . $user_id . '<br />';
if ( 0 == $current_user->ID) {
echo "Not logged in";
} else {
echo "Logged in";
}
}
?>
以下是HTML代码：
<div class="wrap" >
<h1>Edit Role <a class="page-title-action" href="my_menu.php">Add New </a></h1>
<form name="simple_form" method="post" action="admin.php?page=my_menu" enctype="multipart/form-data" >
<table class="wp-list-table widefat fixed ">
<thead>
<tr>
<th class="column-cap">Capability</th>
<?php foreach ( $wp_roles->roles as $key=>$value ): ?>
<th><a href=" " ><?php echo $value['name']; ?></a></th>
<?php endforeach; ?>
</tr>
</thead>
<h1 id="menu_setting" class="handle">User Role & Capabilities</h1><br>
<table class=" wp-list-table widefat fixed">
<thead style="background-color:white;">
<tr>
<td>
<a><i class="dashicons dashicons-admin-post"></i>
<span class="label">Posts</span></a>
</td>
<?php foreach ( $wp_roles->roles as $key=>$value ): ?>
<td>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_read_posts" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'read_posts')=="1"){echo "checked='checked'";} ?> />read<br>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_edit_posts" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'edit_posts')=="1"){ echo "checked='checked'";} ?> />edit<br>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_delete_posts" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'delete_posts')=="1"){echo "checked='checked'";} ?> />delete
</td>
<?php endforeach; ?>
</tr>
<tr>
<td>
<a><i class="dashicons dashicons-admin-page"></i>
<span class="label">Pages</span></a></td>
<?php foreach ( $wp_roles->roles as $key=>$value ): ?>
<td>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_read_pages" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'read_pages')=="1"){echo "checked";} ?> />read <br>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_edit_pages" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'edit_pages')=="1"){echo "checked";} ?> />edit<br>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_delete_pages" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'delete_pages')=="1"){echo "checked";} ?> >delete
</td>
<?php endforeach; ?>
</tr>
<tr>
<td>
<a><i class="dashicons dashicons-admin-media"></i>
<span class="label">Media</span></a></td>
<?php foreach ( $wp_roles->roles as $key=>$value ): ?>
<td>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_read_media" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'read_media')=="1"){echo "checked";} ?> />read <br>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_edit_media" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'edit_media')=="1"){echo "checked";} ?> />edit<br>
<input id="CheckboxId" name="<?php echo $value['name']; ?>_delete_media" type="checkbox" value="1"
<?php if(get_site_option($key.'_'.'delete_media')=="1"){echo "checked";} ?> >delete
</td>
<?php endforeach; ?>
</tr>
</table>
<br>
<input class="button button-primary" type="submit" id="submit" name="submit" value="Submit">
</thead>
</table>
</form>
<script>
</script>
<?php }