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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 |
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244 |
|
245 | /** |
246 | * Filters the HTML format of the search form. |
247 | * |
248 | * @since 3.6.0 |
249 | * |
250 | * @param string $format The type of markup to use in the search form. |
251 | * Accepts 'html5', 'xhtml'. |
252 | */ |
253 | $format = apply_filters( 'search_form_format', $format ); |
254 |
|
255 | $search_form_template = locate_template( 'searchform.php' ); |
256 | if ( '' != $search_form_template ) { |
257 | ob_start(); |
258 | require $search_form_template; |
259 | $form = ob_get_clean(); |
260 | } else { |
261 | // Build a string containing an aria-label to use for the search form. |
262 | if ( isset( $args['aria_label'] ) && $args['aria_label'] ) { |