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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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208 |
|
209 | /** |
210 | * Filter the image HTML markup including the caption shortcode. |
211 | * |
212 | * @since 2.6.0 |
213 | * |
214 | * @param string $shcode The image HTML markup with caption shortcode. |
215 | * @param string $html The image HTML markup. |
216 | */ |
217 | return apply_filters( 'image_add_caption_shortcode', $shcode, $html ); |
218 | } |
219 | add_filter( 'image_send_to_editor', 'image_add_caption', 20, 8 ); |
220 |
|
221 | /** |
222 | * Private preg_replace callback used in image_add_caption() |
223 | * |
224 | * @access private |
225 | * @since 3.4.0 |
226 | */ |