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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 |
---|---|
1749 | } |
1750 |
|
1751 | if ( empty($post->post_excerpt) ) |
1752 | $excerpt = apply_filters('the_content', $post->post_content, $post->ID); |
1753 | else |
1754 | $excerpt = apply_filters('the_excerpt', $post->post_excerpt); |
1755 | $excerpt = str_replace(']]>', ']]>', $excerpt); |
1756 | $excerpt = wp_html_excerpt($excerpt, 252, '…'); |
1757 |
|
1758 | $post_title = apply_filters('the_title', $post->post_title, $post->ID); |
1759 | $post_title = strip_tags($post_title); |
1760 |
|
1761 | if ( $to_ping ) { |
1762 | foreach ( (array) $to_ping as $tb_ping ) { |
1763 | $tb_ping = trim($tb_ping); |
1764 | if ( !in_array($tb_ping, $pinged) ) { |
1765 | trackback($tb_ping, $post_title, $excerpt, $post_id); |
1766 | $pinged[] = $tb_ping; |
1767 | } else { |