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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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371 | * Passing a non-null value to the filter will effectively short-circuit retrieval, |
372 | * returning the passed value instead. |
373 | * |
374 | * @since 4.5.3 |
375 | * |
376 | * @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. Default null. |
377 | * @param string $url The URL to the content that should be attempted to be embedded. |
378 | * @param array $args Optional. Arguments, usually passed from a shortcode. Default empty. |
379 | */ |
380 | $pre = apply_filters( 'pre_oembed_result', null, $url, $args ); |
381 |
|
382 | if ( null !== $pre ) { |
383 | return $pre; |
384 | } |
385 |
|
386 | $data = $this->get_data( $url, $args ); |
387 |
|
388 | if ( false === $data ) { |
389 | return false; |