Question

is_local_attachment( string $url )

Check if the attachment URI is local one and is really an attachment.

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description

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参数

$url

(string) (Required) URL to check

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返回值

(bool) True on success, false on failure.

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源代码

File: wp-includes/post.php

function is_local_attachment($url) {
	if (strpos($url, home_url()) === false)
		return false;
	if (strpos($url, home_url('/?attachment_id=')) !== false)
		return true;
	if ( $id = url_to_postid($url) ) {
		$post = get_post($id);
		if ( 'attachment' == $post->post_type )
			return true;
	}
	return false;
}

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更新日志

Version	description
2.0.0	Introduced.

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相关函数

Uses

• wp-includes/link-template.php: home_url()
• wp-includes/post.php: get_post()
• wp-includes/rewrite.php: url_to_postid()

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Used By

• wp-includes/comment.php: pingback()

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User Contributed Notes