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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 |
|---|---|
| 328 | if ( ! in_array($value, $targets) ) |
| 329 | $value = ''; |
| 330 | break; |
| 331 | } |
| 332 | |
| 333 | if ( 'raw' == $context ) |
| 334 | return $value; |
| 335 | |
| 336 | if ( 'edit' == $context ) { |
| 337 | $value = apply_filters("edit_$field", $value, $bookmark_id); |
| 338 | |
| 339 | if ( 'link_notes' == $field ) { |
| 340 | $value = esc_html( $value ); // textarea_escaped |
| 341 | } else { |
| 342 | $value = esc_attr($value); |
| 343 | } |
| 344 | } else if ( 'db' == $context ) { |
| 345 | $value = apply_filters("pre_$field", $value); |
| 346 | } else { |