php编程 连接数据库 读取数据表的问题
我的数据库有多张数据表,只有表order不能读取 只能打印出111
其他任何一张表都能 就是会打印出222
不知道出了什么问题QAQ
<?php $corn=mysql_connect('localhost','root',''); mysql_query('set names UTF8',$corn); if(!$corn) die('Could not connect: ' . mysql_error()); $db_selected=mysql_select_db("daydream",$corn); if (!$db_selected) die ('Can\'t use foo : ' . mysql_error()); $query=mysql_query("select * from order "); if(!$query) echo 111; else echo 222;//这三行是用来测试是否读取到数据表 $row = mysql_fetch_array($query); echo" <div> <p class='item'>购物车编号:$row[cartNo]  客户编号:$row[cusNo]  商品编号:$row[proNo]  购买时间:$row[cartDate]  购买金额:$row[cartSum]  收货地址:$row[cartAddress] </input></p> </br> </div><p> "; echo"  </p>"; ?>
回复讨论(解决方案)
真的做到最后显示订单记录这里最容易的部分啊!!!!居然读不到订单表!!!!拜托大家帮我看看!!!实在想不出什么问题QAQ
下面是我的数据表和数据库
$query=mysql_query("select * from order ");
order 是??字
改成
$query=mysql_query("select * from `order `");
就可以了。
其?表名一般都不要用??字比?好,可以用orders?做。
$query=mysql_query("select * from `order` ");
表名不能使用关键字这个我知道
但是一但有关键字,就要用‘’起来。
只有表order不能读取 只能打印出111
其他任何一张表都能 就是会打印出222 其实从你的描述就已经知道问题所在了,就是order表的问题,什么问题呢,和关键字order一样,所以改一下表名吧,或者`order`
$query=mysql_query("select * from order ") or die(mysql_error());
提示什么不就知道了
mysql 保留字 http://www.cnblogs.com/lawdong/archive/2010/08/08/2357903.html
凡是将保留字挪作他用时都不需转义:用 `` 括起来
但如下保留字可以例外:
ACTION
BIT
DATE
ENUM
NO
TEXT
TIME
TIMESTAMP
原来是关键字的问题 谢谢大家啦 我知道啦 已经改好啦~~~~

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



PHP 8.4 brings several new features, security improvements, and performance improvements with healthy amounts of feature deprecations and removals. This guide explains how to install PHP 8.4 or upgrade to PHP 8.4 on Ubuntu, Debian, or their derivati

Visual Studio Code, also known as VS Code, is a free source code editor — or integrated development environment (IDE) — available for all major operating systems. With a large collection of extensions for many programming languages, VS Code can be c

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

Python is an ideal programming introduction language for beginners through its ease of learning and powerful features. Its basics include: Variables: used to store data (numbers, strings, lists, etc.). Data type: Defines the type of data in the variable (integer, floating point, etc.). Operators: used for mathematical operations and comparisons. Control flow: Control the flow of code execution (conditional statements, loops).

Pythonempowersbeginnersinproblem-solving.Itsuser-friendlysyntax,extensivelibrary,andfeaturessuchasvariables,conditionalstatements,andloopsenableefficientcodedevelopment.Frommanagingdatatocontrollingprogramflowandperformingrepetitivetasks,Pythonprovid
