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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 |
|---|---|
| 8477 | * Filters the URL to learn more about updating the HTTPS version the site is running on. |
| 8478 | * |
| 8479 | * Providing an empty string is not allowed and will result in the default URL being used. Furthermore |
| 8480 | * the page the URL links to should preferably be localized in the site language. |
| 8481 | * |
| 8482 | * @since 5.7.0 |
| 8483 | * |
| 8484 | * @param string $update_url URL to learn more about updating HTTPS. |
| 8485 | */ |
| 8486 | $update_url = apply_filters( 'wp_update_https_url', $update_url ); |
| 8487 | if ( empty( $update_url ) ) { |
| 8488 | $update_url = $default_url; |
| 8489 | } |
| 8490 | |
| 8491 | return $update_url; |
| 8492 | } |
| 8493 | |
| 8494 | /** |
| 8495 | * Gets the default URL to learn more about updating the site to use HTTPS. |