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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 |
|---|---|
| 227 | |
| 228 | <?php |
| 229 | /** |
| 230 | * Fires after the site sign-up form. |
| 231 | * |
| 232 | * @since 3.0.0 |
| 233 | * |
| 234 | * @param WP_Error $errors A WP_Error object possibly containing 'blogname' or 'blog_title' errors. |
| 235 | */ |
| 236 | do_action( 'signup_blogform', $errors ); |
| 237 | } |
| 238 | |
| 239 | /** |
| 240 | * Validates the new site sign-up. |
| 241 | * |
| 242 | * @since MU (3.0.0) |
| 243 | * |
| 244 | * @return array Contains the new site data and error messages. |
| 245 | * See wpmu_validate_blog_signup() for details. |