Function Reference/url to postid

来自WordPress中文文档
(重定向自Url to postid
跳转至: 导航搜索

Description

Retrieve id of page/post given its url, or zero on failure. Can be thought of as the opposite function of get_permalink.

Note that this function does not return the post id for custom post types (see Trac ticket #19744).

When using this function to retrive the ID of an attachment, it is required that the url provided be in the format of example.com/?attachment_id=N and will not work with the full URL. To get the id from the full URL see this for a work around.

Usage

%%% <?php $postid = url_to_postid( $url ); ?> %%%

Parameters

tt$url/tt
(string) (required) The permalink to check.
Default: Nonenoinclude

div class=template-description style=padding: 0 1.5em; border: 1px solid #eeeeee; background-color: #f9f9f9

Notes

This template is for standardizing how parameters look in the Function Reference and in Template Tags. Here is an example of this template being called: prenowiki检查到模板循环:模板:Parameter/nowiki/pre 检查到模板循环:模板:Parameter

The usage of this template is below: prenowiki检查到模板循环:模板:Parameter/nowiki/pre Let's take a closer look at the parameters..

name
The name of the parameter.
datatype
The datatype that should be given for this parameter when called.
  • string
  • integer
  • boolean
  • mixed
description
A short description of the parameter.
importance
Set this parameter to optional if the parameter is optional. Otherwise, do not declare this parameter—it defaults to required.
  • required
  • optional
default
If this parameter is optional, ttdefault/tt is the value that will be used if the parameter is not declared.

wordpress.org.cn /div /noinclude

Return Values

(int) 
ID of the post or page that resides at the given URL, or 0 on failure.

Change Log

Since: 1.0.0

Source File

url_to_postid() is located in onlyincludecodewp-includes/rewrite.php/code/onlyinclude

div class=template-description style=padding: 0 1.5em; border: 1px solid #eeeeee; background-color: #f9f9f9

Template Description

Link to the source code on http://core.trac.wordpress.org/browser/.

Parameters

  1. filename
  2. (option) path to codetag/code (version) or codetrunk/code. This option is only used for a new function.br /Default: codetrunk/code -- trunk is the latest bleeding edge development version of WordPress.

Usage

Link to the stable version: pre检查到模板循环:模板:Trac/pre

Link to trunk: pre检查到模板循环:模板:Trac/pre

/div

wordpress.org.cn.