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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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193 | * |
194 | * Passing an empty value also prevents the {@see 'image_add_caption_shortcode'} |
195 | * Filters from being evaluated at the end of image_add_caption(). |
196 | * |
197 | * @since 4.1.0 |
198 | * |
199 | * @param string $caption The original caption text. |
200 | * @param int $id The attachment ID. |
201 | */ |
202 | $caption = apply_filters( 'image_add_caption_text', $caption, $id ); |
203 |
|
204 | /** |
205 | * Filters whether to disable captions. |
206 | * |
207 | * Prevents image captions from being appended to image HTML when inserted into the editor. |
208 | * |
209 | * @since 2.6.0 |
210 | * |
211 | * @param bool $bool Whether to disable appending captions. Returning true from the filter |