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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 |
---|---|
387 | * |
388 | * @since 4.5.3 |
389 | * |
390 | * @param null|string $result The UNSANITIZED (and potentially unsafe) HTML that should be used to embed. |
391 | * Default null to continue retrieving the result. |
392 | * @param string $url The URL to the content that should be attempted to be embedded. |
393 | * @param string|array $args Optional. Additional arguments for retrieving embed HTML. |
394 | * See wp_oembed_get() for accepted arguments. Default empty. |
395 | */ |
396 | $pre = apply_filters( 'pre_oembed_result', null, $url, $args ); |
397 |
|
398 | if ( null !== $pre ) { |
399 | return $pre; |
400 | } |
401 |
|
402 | $data = $this->get_data( $url, $args ); |
403 |
|
404 | if ( false === $data ) { |
405 | return false; |