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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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196 | function get_search_form( $echo = true ) { |
197 | /** |
198 | * Fires before the search form is retrieved, at the start of get_search_form(). |
199 | * |
200 | * @since 2.7.0 as 'get_search_form' action. |
201 | * @since 3.6.0 |
202 | * |
203 | * @link https://core.trac.wordpress.org/ticket/19321 |
204 | */ |
205 | do_action( 'pre_get_search_form' ); |
206 |
|
207 | $format = current_theme_supports( 'html5', 'search-form' ) ? 'html5' : 'xhtml'; |
208 |
|
209 | /** |
210 | * Filter the HTML format of the search form. |
211 | * |
212 | * @since 3.6.0 |
213 | * |
214 | * @param string $format The type of markup to use in the search form. |