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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 |
|---|---|
| 236 | if ( isset( $_POST[ 'signup_for' ] ) ) |
| 237 | $signup[ esc_html( $_POST[ 'signup_for' ] ) ] = 'checked="checked"'; |
| 238 | else |
| 239 | $signup[ 'blog' ] = 'checked="checked"'; |
| 240 | |
| 241 | //TODO - This doesn't seem to do anything do we really need it? |
| 242 | $signup['user'] = isset( $signup['user'] ) ? $signup['user'] : ''; |
| 243 | |
| 244 | // allow definition of default variables |
| 245 | $filtered_results = apply_filters('signup_user_init', array('user_name' => $user_name, 'user_email' => $user_email, 'errors' => $errors )); |
| 246 | $user_name = $filtered_results['user_name']; |
| 247 | $user_email = $filtered_results['user_email']; |
| 248 | $errors = $filtered_results['errors']; |
| 249 | |
| 250 | ?> |
| 251 | |
| 252 | <h2><?php printf( __( 'Get your own %s account in seconds' ), $current_site->site_name ) ?></h2> |
| 253 | <form id="setupform" method="post" action="wp-signup.php"> |
| 254 | <input type="hidden" name="stage" value="validate-user-signup" /> |