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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 |
---|---|
954 | $scheme = 'logged_in'; |
955 | } else { |
956 | /** |
957 | * Filter the authentication redirect scheme. |
958 | * |
959 | * @since 2.9.0 |
960 | * |
961 | * @param string $scheme Authentication redirect scheme. Default empty. |
962 | */ |
963 | $scheme = apply_filters( 'auth_redirect_scheme', '' ); |
964 | } |
965 |
|
966 | if ( $user_id = wp_validate_auth_cookie( '', $scheme) ) { |
967 | /** |
968 | * Fires before the authentication redirect. |
969 | * |
970 | * @since 2.8.0 |
971 | * |
972 | * @param int $user_id User ID. |