所以就像我在标题中所说的那样,我正在创建一个最近的帖子小部件以供练习。它包括不同的功能,我遇到的问题是允许管理员选择他们想要显示的类别。我目前已对其进行设置,以便在表单中它有一个文本字段,管理员可以在其中手动输入类别,但我需要它有一个下拉菜单,其中已经有类别,所以管理员可以只需选择它。我根本不知道该怎么做,所以如果我能得到一些帮助,那就太好了。对不起,如果我含糊其辞,我是新手。我在下面发布我的代码。
<?php
/*
Plugin Name: News Recent Posts Widget
Plugin URI:
Description: A recent post widget with extra functions that allow admin to make changes to certain values
Author: Kevin Ullyott
Version: 1.0
Author URI: http://modmacro.com/
*/
class recentpost extends WP_Widget {
public function __construct() {
parent::WP_Widget(
// or parent::__construct(
false,
'Kevin - Recent Posts Widget',
array(
'description' => __('A recent post widget with extra functions that allow admin to make changes to certain values')
)
);
;
}
public function widget( $args, $instance ) {
extract( $args );
$headline = $instance['headline'];
$category = $instance['category'];
$numberposts = $instance['numberposts'];
$readmore = $instance['readmore'];
echo $before_widget;
echo $before_title;
echo "<p class=\"headline\">$headline</p>";
echo $after_title;
$args = array( 'numberposts' => $numberposts, 'category_name' => $category );
$recent_posts = wp_get_recent_posts( $args );
foreach( $recent_posts as $recent ){
setup_postdata(get_post($recent['ID']));
echo '<a href="' . get_permalink($recent['ID']) . '" title=" '.esc_attr(get_the_title($recent['ID'])).'" >' . get_the_title($recent['ID']).'</a> ';
echo get_the_time('F j, Y', $recent['ID']);
the_excerpt();
}
wp_reset_postdata();
echo $after_widget;
}
public function update( $new_instance, $old_instance ) {
$instance = array();
$instance['headline'] = ( $new_instance['headline'] );
$instance['category'] = ( $new_instance['category'] );
$instance['numberposts'] = ( $new_instance['numberposts'] );
$instance['readmore'] = ( $new_instance['readmore'] );
return $instance;
}
public function form( $instance ) {
$headline = $instance[ 'headline' ];
$category = $instance[ 'category' ];
$numberposts = $instance[ 'numberposts' ];
$readmore = $instance[ 'readmore' ];
?>
<p>
<label for="<?php echo $this->get_field_id( 'headline' ); ?>">
<?php _e( 'Headline:' ); ?>
</label>
<input class="widefat" id="<?php echo $this->get_field_id( 'headline' ); ?>" name="<?php echo $this->get_field_name( 'headline' ); ?>" type="text" value="<?php echo esc_attr( $headline ); ?>" />
</p>
<label for="<?php echo $this->get_field_id( 'category' ); ?>">
<?php _e( 'Category:' ); ?>
</label>
<input class="widefat" id="<?php echo $this->get_field_id( 'category' ); ?>" name="<?php echo $this->get_field_name( 'category' ); ?>" type="text" value="<?php echo esc_attr( $category ); ?>" />
</p>
<label for="<?php echo $this->get_field_id( 'numberposts' ); ?>">
<?php _e( 'Number of posts:' ); ?>
</label>
<input class="widefat" id="<?php echo $this->get_field_id( 'numberposts' ); ?>" name="<?php echo $this->get_field_name( 'numberposts' ); ?>" type="text" value="<?php echo esc_attr( $numberposts ); ?>" />
</p>
<label for="<?php echo $this->get_field_id( 'readmore' ); ?>">
<?php _e( 'Read More:' ); ?>
</label>
<input class="widefat" id="<?php echo $this->get_field_id( 'readmore' ); ?>" name="<?php echo $this->get_field_name( 'readmore' ); ?>" type="text" value="<?php echo esc_attr( $readmore ); ?>" />
</p>
<?php
}
}
add_action( 'widgets_init', create_function('', 'return register_widget("recentpost");') );
?>