无效的 SQL 语句。您的 SQL 语法有错误;检查与您的 MySQL 服务器版本相对应的手册,以在第 5 行的“.A Biography of the Rev. Absalom Dawe.”附近使用正确的语法。
$CDTitle = $_REQUEST['CDTitle']; // make sure its only an id (SQL Incjection problems)
$sql = "SELECT nmc_cd.CDTitle, nmc_cd.CDYear, nmc_cd.CDPrice, nmc_category.catDesc, nmc_publisher.pubName
FROM nmc_cd
NATURAL JOIN nmc_category
NATURAL JOIN nmc_publisher
WHERE nmc_cd.CDTitle = '$CDTitle'
ORDER BY nmc_cd.CDTitle
LIMIT 0 , 30";