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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 |
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235 |
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236 | /** |
237 | * Filters the image HTML markup including the caption shortcode. |
238 | * |
239 | * @since 2.6.0 |
240 | * |
241 | * @param string $shcode The image HTML markup with caption shortcode. |
242 | * @param string $html The image HTML markup. |
243 | */ |
244 | return apply_filters( 'image_add_caption_shortcode', $shcode, $html ); |
245 | } |
246 |
|
247 | /** |
248 | * Private preg_replace callback used in image_add_caption() |
249 | * |
250 | * @access private |
251 | * @since 3.4.0 |
252 | */ |
253 | function _cleanup_image_add_caption( $matches ) { |