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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 |
---|---|
454 |
|
455 | echo $before_widget; |
456 | if ( $title ) |
457 | echo $before_title . $title . $after_title; |
458 |
|
459 | $cat_args = array('orderby' => 'name', 'show_count' => $c, 'hierarchical' => $h); |
460 |
|
461 | if ( $d ) { |
462 | $cat_args['show_option_none'] = __('Select Category'); |
463 | wp_dropdown_categories(apply_filters('widget_categories_dropdown_args', $cat_args)); |
464 | ?> |
465 |
|
466 | <script type='text/javascript'> |
467 | /* <![CDATA[ */ |
468 | var dropdown = document.getElementById("cat"); |
469 | function onCatChange() { |
470 | if ( dropdown.options[dropdown.selectedIndex].value > 0 ) { |
471 | location.href = "<?php echo home_url(); ?>/?cat="+dropdown.options[dropdown.selectedIndex].value; |
472 | } |