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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 |
---|---|
1125 | } |
1126 |
|
1127 | /** |
1128 | * Filters the authentication redirect scheme. |
1129 | * |
1130 | * @since 2.9.0 |
1131 | * |
1132 | * @param string $scheme Authentication redirect scheme. Default empty. |
1133 | */ |
1134 | $scheme = apply_filters( 'auth_redirect_scheme', '' ); |
1135 |
|
1136 | $user_id = wp_validate_auth_cookie( '', $scheme ); |
1137 | if ( $user_id ) { |
1138 | /** |
1139 | * Fires before the authentication redirect. |
1140 | * |
1141 | * @since 2.8.0 |
1142 | * |
1143 | * @param int $user_id User ID. |