我收到索引错误，我无法弄清楚为什么我会收到它。有人可以指出我正确的方向或解释这里发生了什么？
注意：未定义的索引：第82行的/Users/Garrett/Desktop/Sites/wordpressPractice.dev/wp-content/plugins/wptreehouse-badges/wptreehouse-badges.php中的wptreehouse_profile NULL
第82行
<?php $options['wptreehouse_profile'] = $wptreehouse_profile; ?>
主插件文件
<?php
/*
*
* Plugin Name: Official Treehouse Badges Plugin
* Plugin URI : http://wptreehouse.com/wptreehouse-badges-plugin/
* Description: Proviceds both widgets and shortcodes to help you display treehouse profile data
* Version 1.0
* Author: Garrett Sanderson
* Author URI: http://gsandersongraphics.com
* License: GPL2
*
*/
/*
* Assign Global Variables
*
*/
$plugin_url = WP_PLUGIN_URL . '/wptreehouse-badges';
$options = array();
/*
* Add a link to our plugin in the admin menu
* under 'Settings > Treehouse Badges'
*
*/
function wptreehouse_badges_menu() {
/*
* Use the add_option_page function
* add_options ( $page_title, $menu_title, $capability, $menu-slug, $function)
*
*/
add_options_page(
'Official Treehouse Badges Plugin',
'Treehouse Badges',
'manage_options',
'wptreehouse-badges',
'wptreehouse_badges_options_page'
);
}
add_action ( 'admin_menu', 'wptreehouse_badges_menu' );
function wptreehouse_badges_options_page() {
if( !current_user_can( 'manage_options' ) ) {
wp_die( 'You do not have sufficient permissions to access this page');
}
global $plugin_url;
global $options;
if( isset( $_POST['wptreehouse_form_submitted'] ) ) {
$hidden_field = esc_html( $_POST['wptreehouse_form_submitted'] );
if( $hidden_field == 'Y' ) {
$wptreehouse_username = esc_html( $_POST['wptreehouse_username'] );
$wptreehouse_profile = wptreehouse_badges_get_profile( $wptreehouse_username );
$options['wptreehouse_username'] = $wptreehouse_username;
$options['wptreehouse_profile'] = $wptreehouse_profile;
$options['last_updated'] = time();
update_option( 'wptreehouse_badges', $options );
}
}
$options = get_option( 'wptreehouse_badges' );
if( $options != '' ) {
$wptreehouse_username = $options['wptreehouse_username'];
$wptreehouse_profile = $options['wptreehouse_profile'];
}
var_dump($wptreehouse_profile);
require( 'inc/options-page-wrapper.php' );
}
function wptreehouse_badges_get_profile ( $wptreehouse_username ) {
$json_feed_url = 'http://teamtreeehouse,com/' . $wptreehouse_username . '.json';
$args = array ( 'timeout' => 120 );
$json_feed = wp_remote_get( $json_feed_url, $args );
$wptreehouse_profile = json_decode( $json_feed['body'] );
return $wptreehouse_profile;
}
function wptreehouse_badges_styles() {
wp_enqueue_style( 'wptreehouse_badges_styles', plugins_url( 'wptreehouse-badges/wptreehouse-badges.css' ) );
}
add_action( 'admin_head', 'wptreehouse_badges_styles' );
?>
我的设置页面
<h2><?php esc_attr_e( 'The Official Treehouse Badges Plugin', 'wp_admin_style' ); ?></h2>
<div class="wrap">
<div id="icon-options-general" class="icon32"></div>
<h1><?php esc_attr_e( 'Heading String', 'wp_admin_style' ); ?></h1>
<div id="poststuff">
<div id="post-body" class="metabox-holder columns-2">
<!-- main content -->
<div id="post-body-content">
<div class="meta-box-sortables ui-sortable">
<?php if( !isset( $wptreehouse_username ) || $wptreehouse_username == '' ): ?>
<div class="postbox">
<div class="handlediv" title="Click to toggle"><br></div>
<!-- Toggle -->
<h2 class="hndle"><span><?php esc_attr_e( 'Lets Get Started', 'wp_admin_style' ); ?></span>
</h2>
<div class="inside">
<form name="wptreehouse_username_form" method="post" action="">
<input type="hidden" name="wptreehouse_form_submitted" value="Y">
<table class="form-table">
<tr>
<td><label for="wptreehouse_username">Treehouse Username</label></td>
<td><input type="text" name="wptreehouse_username" id="wptreehouse_username" class="regular-text" value="" /><br></td>
</tr>
</table>
<p>
<input class="button-primary" type="submit" name="treehouse_username_submit" value="Save" />
</p>
</form>
</div>
<!-- .inside -->
</div>
<!-- .postbox -->
<?php else: ?>
<div class="postbox">
<div class="handlediv" title="Click to toggle"><br></div>
<!-- Toggle -->
<h3><span>Most Recent Badges</span></h3>
<div class="inside">
<p>Below are your 20 most recent badges</p>
<ul class="wp-treehouse-badges">
<?php for( $i = 0; $i < 20; $i++ ): ?>
<li>
<ul>
<li>
<img width="100%" class="wp-treehouse-gravatar" width="120px" src="<?php echo $plugin_url . '/images/wp-badge.png'; ?>">
</li>
<li class="wptreehouse-badge-name">
<a href="#">Badge Name</a>
</li>
<li class="wptreehouse-project-name">
<a href="#">Project Name</a>
</li>
</ul>
</li>
<?php endfor; ?>
</ul>
</div><!-- .inside -->
</div>
<!-- .postbox -->
<div class="postbox">
<div class="handlediv" title="Click to toggle"><br></div>
<!-- Toggle -->
<h3><span>Json Feed</span></h3>
<div class="inside">
<pre>
<code><?php var_dump( $wptreehouse_profile );?></code>
</pre>
</div>
</div>
<?php endif; ?>
</div>
<!-- .meta-box-sortables .ui-sortable -->
</div>
<!-- post-body-content -->
<!-- sidebar -->
<div id="postbox-container-1" class="postbox-container">
<div class="meta-box-sortables">
<?php if( isset( $wptreehouse_username ) && $wptreehouse_username != '' ): ?>
<div class="postbox">
<div class="handlediv" title="Click to toggle"><br></div>
<!-- Toggle -->
<h3><span>Mike the Frog's Profile</span></h3>
<div class="inside">
<p><img width="100%" class="wptreehouse-gravatar" src="<?php echo $plugin_url . '/images/mike-the-frog.png';?>"></p>
<ul class="wptreehouse-badges-and-points">
<li>Badges: <strong>200</strong></li>
<li>Points: <strong>10000</strong></li>
</ul>
<form name="wptreehouse_username_form" method="post" action="">
<p>
<input type="hidden" name="wptreehouse_form_submitted" value="Y">
<label for="wptreehouse_username">Username</label>
<input type="text" name="wptreehouse_username" id="wptreehouse_username" value="<?php echo $wptreehouse_username ?>" />
<input class="button-primary" type="submit" name="treehouse_username_submit" value="Update" />
</p>
</form>
</div>
<!-- .inside -->
</div>
<!-- .postbox -->
<?php endif; ?>
</div>
<!-- .meta-box-sortables -->
</div>
<!-- #postbox-container-1 .postbox-container -->
</div>
<!-- #post-body .metabox-holder .columns-2 -->
<br class="clear">
</div>
<!-- #poststuff -->
</div> <!-- .wrap -->
答案 0 :(得分：1)
您正在尝试访问未设置的数组中的索引。这提出了一个通知。您收到此通知是因为您的php.ini已将 error_reporting 设置为包含 E_NOTICE 。
因此在PHP中，您必须在分配值之前检查变量是否已设置。 所以你的代码将如下所示，
if(isset($options['wptreehouse_profile'])) {
$wptreehouse_profile = $options['wptreehouse_profile'];
}
你将摆脱这种通知。