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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 |
|---|---|
| 4457 | $same_domain = ( strpos( $login_url, $current_domain ) === 0 ); |
| 4458 | |
| 4459 | /** |
| 4460 | * Filter whether the authentication check originated at the same domain. |
| 4461 | * |
| 4462 | * @since 3.6.0 |
| 4463 | * |
| 4464 | * @param bool $same_domain Whether the authentication check originated at the same domain. |
| 4465 | */ |
| 4466 | $same_domain = apply_filters( 'wp_auth_check_same_domain', $same_domain ); |
| 4467 | $wrap_class = $same_domain ? 'hidden' : 'hidden fallback'; |
| 4468 | |
| 4469 | ?> |
| 4470 | <div id="wp-auth-check-wrap" class="<?php echo $wrap_class; ?>"> |
| 4471 | <div id="wp-auth-check-bg"></div> |
| 4472 | <div id="wp-auth-check"> |
| 4473 | <div class="wp-auth-check-close" tabindex="0" title="<?php esc_attr_e('Close'); ?>"></div> |
| 4474 | <?php |
| 4475 | |