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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 |
---|---|
2990 | } else { |
2991 | /** This filter is documented in wp-includes/post-template.php */ |
2992 | $excerpt = apply_filters( 'the_excerpt', $post->post_excerpt ); |
2993 | } |
2994 |
|
2995 | $excerpt = str_replace( ']]>', ']]>', $excerpt ); |
2996 | $excerpt = wp_html_excerpt( $excerpt, 252, '…' ); |
2997 |
|
2998 | /** This filter is documented in wp-includes/post-template.php */ |
2999 | $post_title = apply_filters( 'the_title', $post->post_title, $post->ID ); |
3000 | $post_title = strip_tags( $post_title ); |
3001 |
|
3002 | if ( $to_ping ) { |
3003 | foreach ( (array) $to_ping as $tb_ping ) { |
3004 | $tb_ping = trim( $tb_ping ); |
3005 | if ( ! in_array( $tb_ping, $pinged, true ) ) { |
3006 | trackback( $tb_ping, $post_title, $excerpt, $post->ID ); |
3007 | $pinged[] = $tb_ping; |
3008 | } else { |