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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 |
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979 | } |
980 |
|
981 | /** |
982 | * Filters the authentication redirect scheme. |
983 | * |
984 | * @since 2.9.0 |
985 | * |
986 | * @param string $scheme Authentication redirect scheme. Default empty. |
987 | */ |
988 | $scheme = apply_filters( 'auth_redirect_scheme', '' ); |
989 |
|
990 | if ( $user_id = wp_validate_auth_cookie( '', $scheme) ) { |
991 | /** |
992 | * Fires before the authentication redirect. |
993 | * |
994 | * @since 2.8.0 |
995 | * |
996 | * @param int $user_id User ID. |
997 | */ |