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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 |
|---|---|
| 193 | if ( ! in_array($value, $targets) ) |
| 194 | $value = ''; |
| 195 | } |
| 196 | |
| 197 | if ( 'raw' == $context ) |
| 198 | return $value; |
| 199 | |
| 200 | if ( 'edit' == $context ) { |
| 201 | $format_to_edit = array('link_notes'); |
| 202 | $value = apply_filters("edit_$field", $value, $bookmark_id); |
| 203 | |
| 204 | if ( in_array($field, $format_to_edit) ) { |
| 205 | $value = format_to_edit($value); |
| 206 | } else { |
| 207 | $value = attribute_escape($value); |
| 208 | } |
| 209 | } else if ( 'db' == $context ) { |
| 210 | $value = apply_filters("pre_$field", $value); |
| 211 | } else { |