看看get_user_meta 作用

假设用户配置文件中的litecoin地址存储为用户元，键为litecoin_address 您可以这样输出链接：-

$litecoin_address = get_user_meta( get_current_user_id(), \'litecoin_address\', true );

if( !empty( $litecoin_address ) ){
    // maybe do some additional sanitation of the litecoin address here
    $link = sprintf( \'http://free-liteco.in/?r=%s\', $litecoin_address );
    echo $link;
} else {
    echo \'Please login and complete the litecoin address in your profile\';
}