is_single( int|string|int[]|string[] $post = '' )
Determines whether the query is for an existing single post.
Contents
Description
Works for any post type, except attachments and pages
If the $post parameter is specified, this function will additionally check if the query is for one of the Posts specified.
For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.
See also
Parameters
- $post
-
(int|string|int[]|string[]) (Optional) Post ID, title, slug, or array of such to check against.
Default value: ''
Return
(bool) Whether the query is for an existing single post.
More Information
- See Also: is_singular()
- Although is_single() will usually return true for attachments, this behavior should not be relied upon. It is possible for $is_page and $is_attachment to be true at the same time, and in that case $is_single will be false. For this reason, you should use is_attachment() || is_single() if you want to include attachments, or use is_singular() if you want to include pages too.
Source
File: wp-includes/query.php
function is_single( $post = '' ) {
global $wp_query;
if ( ! isset( $wp_query ) ) {
_doing_it_wrong( __FUNCTION__, __( 'Conditional query tags do not work before the query is run. Before then, they always return false.' ), '3.1.0' );
return false;
}
return $wp_query->is_single( $post );
}
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Changelog
| Version | Description |
|---|---|
| 1.5.0 | Introduced. |
User Contributed Notes
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// Run code only for Single post page if ( is_single() && 'post' == get_post_type() ) { } //if it's not a specific post-type if ( is_single() && 'portfolio' != get_post_type() ) { }is_single(); // When any single Post page is being displayed. is_single('17'); // When Post 17 (ID) is being displayed. is_single(17); // When Post 17 (ID) is being displayed. Integer parameter also works is_single('Irish Stew'); // When the Post with post_title of "Irish Stew" is being displayed. is_single('beef-stew'); // When the Post with post_name (slug) of "beef-stew" is being displayed. is_single(array(17,'beef-stew','Irish Stew')); // Returns true when the single post being displayed is either post ID 17, // or the post_name is "beef-stew", or the post_title is "Irish Stew". // Note: the array ability was added in version 2.5.Expand full source codeCollapse full source code
This is to demonstrate different kinds of Single
if ( is_single() ) { // Run code only for Single post-type 'post' } if ( is_page() ) { // Run code only for Single post-type 'page' } if ( is_singular() ) { // Run code for any Singular post of any post type }Enqueue a CSS stylesheet for any single Post page
if ( is_single() ) { // wp_enqueue_style( string $handle, string $src = '', array $deps = array(), string|bool|null $ver = false, string $media = 'all' ) }