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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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245 | */ |
246 | function the_post_thumbnail_caption( $post = null ) { |
247 | /** |
248 | * Filters the displayed post thumbnail caption. |
249 | * |
250 | * @since 4.6.0 |
251 | * |
252 | * @param string $caption Caption for the given attachment. |
253 | */ |
254 | echo apply_filters( 'the_post_thumbnail_caption', get_the_post_thumbnail_caption( $post ) ); |
255 | } |
256 |
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