Function Reference/wp attachment is image

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Zhuozuran讨论 | 贡献2009年3月14日 (六) 09:23的版本 (1个修订)
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Description

This function determines if a post is an image

Usage

%%% ?php wp_attachment_is_image( $post_id ); ? %%%

Example

To check if post ID 37 is an image: pre ?php

 $id = 37
 if ( wp_attachment_is_image( $id ) )
   echo Post .$id. is an image!;
 else
   echo Post .$id. is not an image.;

? /pre

Parameters

tt$post_id/tt
(int) (optional) Integer ID of the post.
Default: 0noinclude

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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