这个元数据库有多个错误,起初我以为Id用下面的代码修复了一个未定义的索引错误,但现在看来我的元数据库没有保存任何数据。
错误前的代码:
if ( !wp_verify_nonce($_POST[\'custom_meta_box_nonce\'], basename(__FILE__)))
return $post_id;
我尝试添加以下内容来修复第108行的未定义索引错误
if ( !isset( $POST[\'excerpt_meta_box_nonce\'] ) || !wp_verify_nonce($_POST[\'excerpt_meta_box_nonce\'], basename(__FILE__)))
return $post_id;
现在添加后,我放入元数据库中的任何数据都不会保存。
任何帮助都将不胜感激
摘录元框代码
<?php
// Add the Meta Box
function vs_add_excerpt_meta_box() {
add_meta_box(
\'excerpt_meta_box\', // $id
\'Excerpt Meta Box\', // $title
\'vs_show_excerpt_meta_box\', // $callback
\'post\', // $page
\'normal\', // $context
\'high\'); // $priority
}
add_action(\'add_meta_boxes\', \'vs_add_excerpt_meta_box\');
// Field Array
$prefix = \'custom_\';
$excerpt_meta_fields = array(
array(
\'label\' => \'Custom post teaser\',
\'desc\' => \'Replace the default excerpt with the text of your choice\',
\'id\' => $prefix.\'excerpt\',
\'type\' => \'textarea\'
)
);
// The Callback
function vs_show_excerpt_meta_box() {
global $excerpt_meta_fields, $post;
// Use nonce for verification
echo \'<input type="hidden" name="excerpt_meta_box_nonce" value="\'.wp_create_nonce(basename(__FILE__)).\'" />\';
// Begin the field table and loop
echo \'<table class="form-table">\';
foreach ($excerpt_meta_fields as $field) {
// get value of this field if it exists for this post
$meta = get_post_meta($post->ID, $field[\'id\'], true);
// begin a table row with
echo \'<tr>
<th><label for="\'.$field[\'id\'].\'">\'.$field[\'label\'].\'</label></th>
<td>\';
switch($field[\'type\']) {
// case items will go here
// textarea
case \'textarea\':
echo \'<textarea name="\'.$field[\'id\'].\'" id="\'.$field[\'id\'].\'" cols="60" rows="4">\'.$meta.\'</textarea>
<br /><span class="description">\'.$field[\'desc\'].\'</span>\';
break;
} //end switch
echo \'</td></tr>\';
} // end foreach
echo \'</table>\'; // end table
}
// Save the Data
function vs_save_excerpt_meta($post_id) {
global $excerpt_meta_fields;
// verify nonce
if ( !isset( $_POST[\'excerpt_meta_box_nonce\'] ) || !wp_verify_nonce($_POST[\'excerpt_meta_box_nonce\'], basename(__FILE__)))
return $post_id;
// check autosave
if (defined(\'DOING_AUTOSAVE\') && DOING_AUTOSAVE)
return $post_id;
// check permissions
if (\'page\' == $_POST[\'post_type\']) {
if (!current_user_can(\'edit_page\', $post_id))
return $post_id;
} elseif (!current_user_can(\'edit_post\', $post_id)) {
return $post_id;
}
// loop through fields and save the data
foreach ($excerpt_meta_fields as $field) {
$old = get_post_meta($post_id, $field[\'id\'], true);
$new = $_POST[$field[\'id\']];
if ($new && $new != $old) {
update_post_meta($post_id, $field[\'id\'], $new);
} elseif (\'\' == $new && $old) {
delete_post_meta($post_id, $field[\'id\'], $old);
}
} // end foreach
}
add_action(\'save_post\', \'vs_save_custom_meta\');
?>