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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 |
---|---|
116 | /** |
117 | * Fires after fetching the post thumbnail HTML. |
118 | * |
119 | * @since 2.9.0 |
120 | * |
121 | * @param string $post_id The post ID. |
122 | * @param string $post_thumbnail_id The post thumbnail ID. |
123 | * @param string $size The post thumbnail size. |
124 | */ |
125 | do_action( 'end_fetch_post_thumbnail_html', $post_id, $post_thumbnail_id, $size ); |
126 |
|
127 | } else { |
128 | $html = ''; |
129 | } |
130 | /** |
131 | * Filter the post thumbnail HTML. |
132 | * |
133 | * @since 2.9.0 |
134 | * |