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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 |
|---|---|
| 132 | |
| 133 | /** |
| 134 | * For multisite blogs, check if the authenticated user has been marked as a |
| 135 | * spammer, or if the user's primary blog has been marked as spam. |
| 136 | * |
| 137 | * @since 3.7.0 |
| 138 | */ |
| 139 | function wp_authenticate_spam_check( $user ) { |
| 140 | if ( $user && is_a( $user, 'WP_User' ) && is_multisite() ) { |
| 141 | $spammed = apply_filters( 'check_is_user_spammed', is_user_spammy(), $user ); |
| 142 | |
| 143 | if ( $spammed ) |
| 144 | return new WP_Error( 'spammer_account', __( '<strong>ERROR</strong>: Your account has been marked as a spammer.' ) ); |
| 145 | } |
| 146 | return $user; |
| 147 | } |
| 148 | |
| 149 | /** |
| 150 | * Number of posts user has written. |