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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 |
|---|---|
| 226 | } |
| 227 | |
| 228 | /** |
| 229 | * Filters the HTML output of the search form. |
| 230 | * |
| 231 | * @since 2.7.0 |
| 232 | * |
| 233 | * @param string $form The search form HTML output. |
| 234 | */ |
| 235 | $result = apply_filters( 'get_search_form', $form ); |
| 236 | |
| 237 | if ( null === $result ) |
| 238 | $result = $form; |
| 239 | |
| 240 | if ( $echo ) |
| 241 | echo $result; |
| 242 | else |
| 243 | return $result; |
| 244 | } |