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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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204 |
|
205 | /** |
206 | * Filters the HTML format of the search form. |
207 | * |
208 | * @since 3.6.0 |
209 | * |
210 | * @param string $format The type of markup to use in the search form. |
211 | * Accepts 'html5', 'xhtml'. |
212 | */ |
213 | $format = apply_filters( 'search_form_format', $format ); |
214 |
|
215 | $search_form_template = locate_template( 'searchform.php' ); |
216 | if ( '' != $search_form_template ) { |
217 | ob_start(); |
218 | require( $search_form_template ); |
219 | $form = ob_get_clean(); |
220 | } else { |
221 | if ( 'html5' == $format ) { |
222 | $form = '<form role="search" method="get" class="search-form" action="' . esc_url( home_url( '/' ) ) . '"> |