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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 |
|---|---|
| 188 | |
| 189 | <?php |
| 190 | /** |
| 191 | * Fires after the site sign-up form. |
| 192 | * |
| 193 | * @since 3.0.0 |
| 194 | * |
| 195 | * @param WP_Error $errors A WP_Error object possibly containing 'blogname' or 'blog_title' errors. |
| 196 | */ |
| 197 | do_action( 'signup_blogform', $errors ); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * Validate the new site signup |
| 202 | * |
| 203 | * @since MU (3.0.0) |
| 204 | * |
| 205 | * @return array Contains the new site data and error messages. |
| 206 | */ |