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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 |
|---|---|
| 235 | $args = wp_parse_args( $args, $defaults ); |
| 236 | |
| 237 | /** |
| 238 | * Filters the array of arguments used when generating the search form. |
| 239 | * |
| 240 | * @since 5.2.0 |
| 241 | * |
| 242 | * @param array $args The array of arguments for building the search form. |
| 243 | */ |
| 244 | $args = apply_filters( 'search_form_args', $args ); |
| 245 | |
| 246 | /** |
| 247 | * Filters the HTML format of the search form. |
| 248 | * |
| 249 | * @since 3.6.0 |
| 250 | * |
| 251 | * @param string $format The type of markup to use in the search form. |
| 252 | * Accepts 'html5', 'xhtml'. |
| 253 | */ |