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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 |
|---|---|
| 137 | /** |
| 138 | * Fires after fetching the post thumbnail HTML. |
| 139 | * |
| 140 | * @since 2.9.0 |
| 141 | * |
| 142 | * @param string $post_id The post ID. |
| 143 | * @param string $post_thumbnail_id The post thumbnail ID. |
| 144 | * @param string $size The post thumbnail size. |
| 145 | */ |
| 146 | do_action( 'end_fetch_post_thumbnail_html', $post_id, $post_thumbnail_id, $size ); |
| 147 | |
| 148 | } else { |
| 149 | $html = ''; |
| 150 | } |
| 151 | /** |
| 152 | * Filter the post thumbnail HTML. |
| 153 | * |
| 154 | * @since 2.9.0 |
| 155 | * |