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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 |
---|---|
1230 |
|
1231 | /** |
1232 | * Triggers a caching of all oEmbed results. |
1233 | * |
1234 | * @param int $post_ID Post ID to do the caching for. |
1235 | */ |
1236 | function cache_oembed( $post_ID ) { |
1237 | $post = get_post( $post_ID ); |
1238 |
|
1239 | if ( empty($post->ID) || !in_array( $post->post_type, apply_filters( 'embed_cache_oembed_types', array( 'post', 'page' ) ) ) ) |
1240 | return; |
1241 |
|
1242 | // Trigger a caching |
1243 | if ( !empty($post->post_content) ) { |
1244 | $this->post_ID = $post->ID; |
1245 | $this->usecache = false; |
1246 |
|
1247 | $content = $this->run_shortcode( $post->post_content ); |
1248 | if ( get_option('embed_autourls') ) |