Pourquoi le widget de publication populaire wordpress affiche-t-il un index non défini?
Pendant la création d'un widget de publication populaire, je vois cette notification:
Notice: Undefined index: popular_posts_order_by in /hermes/bosnaweb09a/b2039/ipg.tutorialcoursecom/arifhossin/wp-content/themes/testtheme/framework/widgets/pb-popular-post.php on line 26.
Voici mon code ... Quelqu'un peut-il résoudre ce problème?
<?php
add_action( 'widgets_init', 'personalblog_popular_posts_widget' );
function personalblog_popular_posts_widget() {
register_widget( 'Personalblog_Popular_Posts' );
}
class Personalblog_Popular_Posts extends WP_Widget{
// Initialize the widget
public function __construct() {
parent::__construct(
'personalblog_popular_posts_widget', esc_html__('Strawberry: Popular Posts Widget','strawberry'), array('description' => esc_html__('Strawberry:A widget that shows Polupar Posts', 'strawberry')));
}
// Output of the widget
public function widget( $args, $instance ) {
extract($args);
$title = apply_filters('widget_title', $instance['title']);
$popular_posts_order_by = $instance['popular_posts_order_by'];
$poular_posts_time_range = $instance['poular_posts_time_range'];
$num_fetch = $instance['num_fetch'];
// Opening of widget
echo $before_widget;
// Open of title tag
if( !empty($title) ){
echo $before_title . $title . $after_title;
}
$args = array(
'post_type' => 'post',
'posts_per_page' => $num_fetch,
'ignore_sticky_posts' => true,
'no_found_rows' => true,
'post_status' => 'publish',
'orderby' => $popular_posts_order_by,
'order' => 'DESC',
'date_query' => array(
array(
'after' => $poular_posts_time_range,
),
),
);
$posts_query = new WP_Query($args); ?>
<?php if ( $posts_query->have_posts() ) { ?>
<div class="pb-recent-posts-widget-section clearfix">
<ul class="pb-recent-post-widget-list">
<?php while ( $posts_query->have_posts() ) : $posts_query->the_post(); ?>
<li id="post-<?php the_ID(); ?>">
<figure class="pb-recent-post-widget-thumbnail-section">
<a href="<?php the_permalink(); ?>" title="<?php echo esc_attr( the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark">
<?php the_post_thumbnail( 'widget-post-image' ); ?>
</a>
</figure>
<div class="pb-recent-post-widget-section">
<h2 class="pb-recent-post-widget-title"><a href="<?php the_permalink(); ?>" title="<?php echo esc_attr( the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h2>
<?php if( pb_theme_options('enable_widget_meta') == '1' ) { ?>
<div class="pb-recent-post-widget-meta clearfix">
<ul>
<?php if( pb_theme_options('widget_meta_date') == '1' ) { ?>
<li><i class="fa fa-clock-o"></i><span><?php echo get_the_date(); ?></span></li>
<?php } ?>
<?php if( pb_theme_options('widget_meta_comments') == '1' ) { ?>
<li><i class="fa fa-comments">
<span>
<?php printf( _nx( '', '%1$s', 'comments title', get_comments_number(), 'personalblog' ), number_format_i18n( get_comments_number() ) ); ?>
</span>
</i>
</li>
<?php } ?>
</ul>
<ul>
<?php if( pb_theme_options('widget_meta_category') == '1' ) { ?>
<li><p class="category"><i class="fa fa-folder-open"> </i> <?php the_category(', '); ?></p></li>
<?php } ?>
<?php if( pb_theme_options('widget_meta_likes') == '1' ) { ?>
<li><?php echo getPostLikeLink( get_the_ID() )?> </li>
<?php } ?>
</ul>
</div>
<?php } ?>
</div>
</li>
<?php endwhile; ?>
</ul>
</div>
<?php }
wp_reset_postdata();
// Closing of widget
echo $after_widget;
}
// Widget Form
public function form( $instance ) {
$defaults = array(
'title' => 'Popular Posts',
'popular_posts_order_by' => 'post_views_count',
'num_fetch' => '5',
'poular_posts_time_range' => '0'
);
$instance = wp_parse_args( (array) $instance, $defaults ); ?>
<p>
<label for="<?php echo $this->get_field_id('title'); ?>"><?php esc_html_e( 'Title:', 'strawberry' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" />
</p>
<p>
<label for="<?php echo esc_attr ($this->get_field_id('popular_posts_order_by')); ?>"><?php esc_html_e( 'Order by:', 'strawberry' ); ?></label>
<select name="<?php echo esc_attr ($this->get_field_name('popular_posts_order_by')); ?>" id="<?php echo esc_attr ($this->get_field_id('popular_posts_order_by')); ?>" class="widefat">
<option value="post_views_count"<?php selected( $instance['popular_posts_order_by'], 'post_views_count' ); ?>><?php esc_html_e( 'View Count', 'strawberry' ); ?></option>
<option value="comment_count"<?php selected( $instance['popular_posts_order_by'], 'comment_count' ); ?>><?php esc_html_e( 'Most commented', 'strawberry' ); ?></option>
</select>
</p>
<p>
<label for="<?php echo esc_attr ($this->get_field_id('poular_posts_time_range')); ?>"><?php esc_html_e( 'Time Range:', 'strawberry' ); ?></label>
<select name="<?php echo esc_attr ( $this->get_field_name('poular_posts_time_range')); ?>" id="<?php echo esc_attr ( $this->get_field_id('poular_posts_time_range')); ?>" class="widefat">
<option value="0"<?php selected( $instance['poular_posts_time_range'], '0' ); ?>><?php esc_html_e( 'All time', 'strawberry' ); ?></option>
<option value="1 year ago"<?php selected( $instance['poular_posts_time_range'], '1 year ago' ); ?>><?php _e( 'This year', 'strawberry' ); ?></option>
<option value="1 month ago"<?php selected( $instance['poular_posts_time_range'], '1 month ago' ); ?>><?php esc_html_e( 'This month', 'strawberry' ); ?></option>
<option value="1 week ago"<?php selected( $instance['poular_posts_time_range'], '1 week ago' ); ?>><?php esc_html_e( 'This week', 'strawberry' ); ?></option>
<option value="1 day ago"<?php selected( $instance['poular_posts_time_range'], '1 day ago' ); ?>><?php esc_html_e( 'Past 24 hours', 'strawberry' ); ?></option>
</select>
</p>
<p>
<label for="<?php echo $this->get_field_id('num_fetch'); ?>"><?php esc_html_e( 'Number of posts to show:', 'strawberry' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id('num_fetch'); ?>" name="<?php echo $this->get_field_name('num_fetch'); ?>" type="text" value="<?php echo intval( $instance['num_fetch'] ); ?>" />
</p>
<?php
}
// Update the widget
public function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = strip_tags($new_instance['title']);
$instance['popular_posts_order_by'] = $new_instance['popular_posts_order_by'];
$instance['poular_posts_time_range'] =$new_instance['poular_posts_time_range'];
$instance['num_fetch'] = $new_instance['num_fetch'];
return $instance;
}
}
?>
Merci
Cet avis apparaît lorsque vous essayez d'accéder à un index non défini d'un tableau.
Pour résoudre ce problème, vous devez vérifier si l'index existe avant de pouvoir y accéder. Pour cela, vous pouvez utiliser isset() ou array_key_exists() :
J'aurais besoin de voir la ligne de code exacte à laquelle l'avis fait référence ( ligne 26 ) afin de vous fournir une réponse exacte à votre code. Voici un exemple général:
// Options 1: isset()
$value = isset($array['my_index']) ? $array['my_index'] : '';
// Options 2: array_key_exists()
$value = array_key_exists('my_index', $array) ? $array['my_index'] : '';