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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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1042 | } |
1043 |
|
1044 | /** |
1045 | * Filters the authentication redirect scheme. |
1046 | * |
1047 | * @since 2.9.0 |
1048 | * |
1049 | * @param string $scheme Authentication redirect scheme. Default empty. |
1050 | */ |
1051 | $scheme = apply_filters( 'auth_redirect_scheme', '' ); |
1052 |
|
1053 | $user_id = wp_validate_auth_cookie( '', $scheme ); |
1054 | if ( $user_id ) { |
1055 | /** |
1056 | * Fires before the authentication redirect. |
1057 | * |
1058 | * @since 2.8.0 |
1059 | * |
1060 | * @param int $user_id User ID. |