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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 |
---|---|
382 | $value = apply_filters( "edit_$field", $value, $bookmark_id ); |
383 |
|
384 | if ( 'link_notes' == $field ) { |
385 | $value = esc_html( $value ); // textarea_escaped |
386 | } else { |
387 | $value = esc_attr($value); |
388 | } |
389 | } else if ( 'db' == $context ) { |
390 | /** This filter is documented in wp-includes/post.php */ |
391 | $value = apply_filters( "pre_$field", $value ); |
392 | } else { |
393 | /** This filter is documented in wp-includes/post.php */ |
394 | $value = apply_filters( $field, $value, $bookmark_id, $context ); |
395 |
|
396 | if ( 'attribute' == $context ) |
397 | $value = esc_attr($value); |
398 | else if ( 'js' == $context ) |
399 | $value = esc_js($value); |
400 | } |