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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 |
|---|---|
| 484 | // WP fix for the bug with HTML comments |
| 485 | $newtext = str_replace("< !--","<!--",$newtext); |
| 486 | $newtext = str_replace("< !--","< !--",$newtext); |
| 487 | |
| 488 | return $newtext; |
| 489 | } |
| 490 | |
| 491 | |
| 492 | function format_to_edit($content) { |
| 493 | $content = apply_filters('format_to_edit', $content); |
| 494 | $content = htmlspecialchars($content); |
| 495 | return $content; |
| 496 | } |
| 497 | |
| 498 | function format_to_post($content) { |
| 499 | global $wpdb; |
| 500 | $content = apply_filters('format_to_post', $content); |
| 501 | return $content; |
| 502 | } |