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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 |
|---|---|
| 452 | $excerpt = ''; |
| 453 | for ($i=0; $i<$k; $i++) { |
| 454 | $excerpt .= $blah[$i] . ' '; |
| 455 | } |
| 456 | $excerpt .= ($use_dotdotdot) ? '...' : ''; |
| 457 | return apply_filters('get_comment_excerpt', $excerpt); |
| 458 | } |
| 459 | |
| 460 | function comment_excerpt() { |
| 461 | echo apply_filters('comment_excerpt', get_comment_excerpt() ); |
| 462 | } |
| 463 | |
| 464 | function get_comment_date( $d = '' ) { |
| 465 | global $comment; |
| 466 | if ( '' == $d ) |
| 467 | $date = mysql2date( get_settings('date_format'), $comment->comment_date); |
| 468 | else |
| 469 | $date = mysql2date($d, $comment->comment_date); |
| 470 | return apply_filters('get_comment_date', $date); |