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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 |
|---|---|
| 505 | if ( $user instanceof WP_User && is_multisite() ) { |
| 506 | /** |
| 507 | * Filters whether the user has been marked as a spammer. |
| 508 | * |
| 509 | * @since 3.7.0 |
| 510 | * |
| 511 | * @param bool $spammed Whether the user is considered a spammer. |
| 512 | * @param WP_User $user User to check against. |
| 513 | */ |
| 514 | $spammed = apply_filters( 'check_is_user_spammed', is_user_spammy( $user ), $user ); |
| 515 | |
| 516 | if ( $spammed ) { |
| 517 | return new WP_Error( 'spammer_account', __( '<strong>Error:</strong> Your account has been marked as a spammer.' ) ); |
| 518 | } |
| 519 | } |
| 520 | return $user; |
| 521 | } |
| 522 | |
| 523 | /** |