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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 |
|---|---|
| 4595 | |
| 4596 | /** |
| 4597 | * Filters the embedded media types that are allowed to be returned from the content blob. |
| 4598 | * |
| 4599 | * @since 4.2.0 |
| 4600 | * |
| 4601 | * @param string[] $allowed_media_types An array of allowed media types. Default media types are |
| 4602 | * 'audio', 'video', 'object', 'embed', and 'iframe'. |
| 4603 | */ |
| 4604 | $allowed_media_types = apply_filters( 'media_embedded_in_content_allowed_types', array( 'audio', 'video', 'object', 'embed', 'iframe' ) ); |
| 4605 | |
| 4606 | if ( ! empty( $types ) ) { |
| 4607 | if ( ! is_array( $types ) ) { |
| 4608 | $types = array( $types ); |
| 4609 | } |
| 4610 | |
| 4611 | $allowed_media_types = array_intersect( $allowed_media_types, $types ); |
| 4612 | } |
| 4613 | |