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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 |
|---|---|
| 314 | function signup_user($user_name = '', $user_email = '', $errors = '') { |
| 315 | global $current_site, $active_signup; |
| 316 | |
| 317 | if ( !is_wp_error($errors) ) |
| 318 | $errors = new WP_Error(); |
| 319 | |
| 320 | $signup_for = isset( $_POST[ 'signup_for' ] ) ? esc_html( $_POST[ 'signup_for' ] ) : 'blog'; |
| 321 | |
| 322 | // allow definition of default variables |
| 323 | $filtered_results = apply_filters('signup_user_init', array('user_name' => $user_name, 'user_email' => $user_email, 'errors' => $errors )); |
| 324 | $user_name = $filtered_results['user_name']; |
| 325 | $user_email = $filtered_results['user_email']; |
| 326 | $errors = $filtered_results['errors']; |
| 327 | |
| 328 | ?> |
| 329 | |
| 330 | <h2><?php printf( __( 'Get your own %s account in seconds' ), $current_site->site_name ) ?></h2> |
| 331 | <form id="setupform" method="post" action="wp-signup.php"> |
| 332 | <input type="hidden" name="stage" value="validate-user-signup" /> |