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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 |
|---|---|
| 250 | } |
| 251 | |
| 252 | /** |
| 253 | * Filter the HTML output of the search form. |
| 254 | * |
| 255 | * @since 2.7.0 |
| 256 | * |
| 257 | * @param string $form The search form HTML output. |
| 258 | */ |
| 259 | $result = apply_filters( 'get_search_form', $form ); |
| 260 | |
| 261 | if ( null === $result ) |
| 262 | $result = $form; |
| 263 | |
| 264 | if ( $echo ) |
| 265 | echo $result; |
| 266 | else |
| 267 | return $result; |
| 268 | } |