WordPress实现快速添加友情链接功能

<?php
/*
Plugin Name: WPJAM Blogroll
Description: 快速添加友情链接
Version: 0.1
Author: Denis
*/
add_action('admin_init', 'wpjam_blogroll_settings_api_init');
function wpjam_blogroll_settings_api_init() {
add_settings_field('wpjam_blogroll_setting', '友情链接', 'wpjam_blogroll_setting_callback_function', 'reading');
register_setting('reading','wpjam_blogroll_setting');
}
function wpjam_blogroll_setting_callback_function() {
echo '<textarea name="wpjam_blogroll_setting" rows="10" cols="50" id="wpjam_blogroll_setting" class="large-text code">' . get_option('wpjam_blogroll_setting') . '</textarea>';
}
function wpjam_blogroll(){
$wpjam_blogroll_setting = get_option('wpjam_blogroll_setting');
if($wpjam_blogroll_setting){
$wpjam_blogrolls = explode("n", $wpjam_blogroll_setting);
foreach ($wpjam_blogrolls as $wpjam_blogroll) {
$wpjam_blogroll = explode("|", $wpjam_blogroll );
echo ' | <a href="'.trim($wpjam_blogroll[0]).'" title="'.esc_attr(trim($wpjam_blogroll[1])).'">'.trim($wpjam_blogroll[1]).'</a>';
}
}
}
?>

<?php
add_action('admin_init', 'wpjam_blogroll_settings_api_init');
function wpjam_blogroll_settings_api_init() {
add_settings_field('wpjam_blogroll_setting', '友情链接', 'wpjam_blogroll_setting_callback_function', 'reading');
register_setting('reading','wpjam_blogroll_setting');
}
function wpjam_blogroll_setting_callback_function() {
echo '<textarea name="wpjam_blogroll_setting" rows="10" cols="50" id="wpjam_blogroll_setting" class="large-text code">' . get_option('wpjam_blogroll_setting') . '</textarea>';
}
function wpjam_blogroll(){
$wpjam_blogroll_setting = get_option('wpjam_blogroll_setting');
if($wpjam_blogroll_setting){
$wpjam_blogrolls = explode("n", $wpjam_blogroll_setting);
foreach ($wpjam_blogrolls as $wpjam_blogroll) {
$wpjam_blogroll = explode("|", $wpjam_blogroll );
echo ' | <a href="'.trim($wpjam_blogroll[0]).'" title="'.esc_attr(trim($wpjam_blogroll[1])).'">'.trim($wpjam_blogroll[1]).'</a>';
}
}
}
?>

<?php if (function_exists(wpjam_blogroll)) wpjam_blogroll();?>