Question

get_the_ID()

Retrieve the ID of the current item in the WordPress Loop.

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description

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返回值

(int|false) The ID of the current item in the WordPress Loop. False if $post is not set.

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源代码

File: wp-includes/post-template.php

function get_the_ID() {
	$post = get_post();
	return ! empty( $post ) ? $post->ID : false;
}

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更新日志

Version	description
2.1.0	Introduced.

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相关函数

Uses

• wp-includes/post.php: get_post()

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Used By

• wp-admin/includes/dashboard.php: wp_dashboard_recent_posts()
• wp-includes/link-template.php: get_post_comments_feed_link()
• wp-includes/post-template.php: prepend_attachment()
• wp-includes/post-template.php: the_ID()
• wp-includes/media.php: wp_video_shortcode()
• wp-includes/media.php: wp_audio_shortcode()
• wp-includes/post.php: is_sticky()
• wp-includes/post.php: get_post_custom()
• wp-includes/comment-template.php: get_comment_id_fields()
• wp-includes/comment-template.php: wp_list_comments()
• wp-includes/comment-template.php: comment_form()
• wp-includes/comment-template.php: get_trackback_url()
• wp-includes/comment-template.php: comments_popup_link()
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User Contributed Notes

1. Skip to note content You must log in to vote on the helpfulness of this noteVote results for this note: 2You must log in to vote on the helpfulness of this note Contributed by Codex

   Post Anchor Identifier
   get_the_ID() can be used to provide a unique anchor in a script. For instance, a dynamically-generated drop down menu with actions for each post in an archive could have

   
   <?php
   	$id = get_the_ID();
   	$dropdown = "<select name='dropdown-".$id."' >";
   	$dropdown .= "<option id='option1-". $id ."'>Option 1</option>";
   	$dropdown .= "</select>";
   ?>
   

   This would allow us to use JavaScript to control the element as it has a unique ID, and when submitting it as a form through the POST or GET methods the dropdown box will be sent with a unique ID which allows the script to note which post it is working on. Alternatively a hidden variable could be sent which will allow the script to see which post the submission is referring to

   
   <?php
   	echo '<input type="hidden" name="activepost" id="activepost" value="'.get_the_ID().'" />';
   ?>
   

Store the ID
The ID can be stored as a variable using

<?php $postid = get_the_ID(); ?>

Should be noted that if this is ran on the Blog homepage, it instead returns the first listed Post ID instead of the blog homepage ID.