apply_filters( 'post_thumbnail_html', string $html , int $post_id , int $post_thumbnail_id , string|int[] $size , string|array $attr )
Filters the post thumbnail HTML.
Parameters
-
$html
string -
The post thumbnail HTML.
-
$post_id
int -
The post ID.
-
$post_thumbnail_id
int -
The post thumbnail ID, or 0 if there isn't one.
-
$size
string|int[] -
Requested image size. Can be any registered image size name, or an array of width and height values in pixels (in that order).
-
$attr
string|array -
Query string or array of attributes.
Source
File: wp-includes/post-thumbnail-template.php
.
View all references
return apply_filters( 'post_thumbnail_html', $html, $post->ID, $post_thumbnail_id, $size, $attr );
Changelog
Version | Description |
---|---|
2.9.0 | Introduced. |
User Contributed Notes
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As of WP 5.9 (as far as I can tell), the
$attr
parameter indicates it accepts astring
orarray
. If you are using parameter-typing in your methods/functions, and you previously indicated that your function should expect a string, you will see fatal errors due to this (as arrays are also sent, now). The change appears to have occurred here.Add title attribute to post thumbnail: