sql - insert - 表中未记录的字段

Question

INSERT INTO `jos1_content` 
  (`title`, `introtext`, `fulltext`, `state`, `sectionid`, `catid`, `attribs`)
VALUES  
  ($title, $introtext, $fulltext, 1, 1, $catid, 5)

查询由 php 脚本组成。变量的推导表明它们不为空。应 phpMyAdmin 的要求显示错误:

1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '

Answer 1

您需要使用单引号向 SQL 指示字符串 - 使用:

INSERT INTO `jos1_content` 
  (`title`, `introtext`, `fulltext`, `state`, `sectionid`, `catid`, `attribs`)
VALUES  
  ('". $title ."', '". $introtext ."', '". $fulltext ."', 1, 1, $catid, 5)

更安全的方法是使用:

$query = sprintf("INSERT INTO `jos1_content` 
                    (`title`, `introtext`, `fulltext`, `state`, `sectionid`, `catid`, `attribs`)
                  VALUES  
                   ('%s', '%s', '%s', 1, 1, %d, 5)",
        mysql_real_escape_string($title),
        mysql_real_escape_string($introtext),
        mysql_real_escape_string($fulltext),
        $catid);

引用:

• SPRINTF
• MYSQL_REAL_ESCAPE_STRING