WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
Line | Code |
---|---|
108 | $post_thumbnail_id = get_post_thumbnail_id( $post_id ); |
109 |
|
110 | /** |
111 | * Filter the post thumbnail size. |
112 | * |
113 | * @since 2.9.0 |
114 | * |
115 | * @param string $size The post thumbnail size. |
116 | */ |
117 | $size = apply_filters( 'post_thumbnail_size', $size ); |
118 |
|
119 | if ( $post_thumbnail_id ) { |
120 |
|
121 | /** |
122 | * Fires before fetching the post thumbnail HTML. |
123 | * |
124 | * Provides "just in time" filtering of all filters in wp_get_attachment_image(). |
125 | * |
126 | * @since 2.9.0 |