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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 |
|---|---|
| 600 | /** |
| 601 | * Filters the user profile picture description displayed under the Gravatar. |
| 602 | * |
| 603 | * @since 4.4.0 |
| 604 | * @since 4.7.0 Added the `$profile_user` parameter. |
| 605 | * |
| 606 | * @param string $description The description that will be printed. |
| 607 | * @param WP_User $profile_user The current WP_User object. |
| 608 | */ |
| 609 | echo apply_filters( 'user_profile_picture_description', $description, $profile_user ); |
| 610 | ?> |
| 611 | </p> |
| 612 | </td> |
| 613 | </tr> |
| 614 | <?php endif; ?> |
| 615 | <?php |
| 616 | /** |
| 617 | * Filters the display of the password fields. |
| 618 | * |