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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 |
|---|---|
| 240 | |
| 241 | /** |
| 242 | * Filters the image HTML markup including the caption shortcode. |
| 243 | * |
| 244 | * @since 2.6.0 |
| 245 | * |
| 246 | * @param string $shcode The image HTML markup with caption shortcode. |
| 247 | * @param string $html The image HTML markup. |
| 248 | */ |
| 249 | return apply_filters( 'image_add_caption_shortcode', $shcode, $html ); |
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Private preg_replace callback used in image_add_caption(). |
| 254 | * |
| 255 | * @access private |
| 256 | * @since 3.4.0 |
| 257 | */ |
| 258 | function _cleanup_image_add_caption( $matches ) { |