php执行mysql语句问题
$id=1; 这个是确定没问题
这个执行就错误
$sql="update admin set pass='$pass1' where id=$id;";
$mysql=new MysqlHelper();
$count=$mysql->query($sql);
$mysql.close();
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 '' at line 1
这个执行就正确
$sql="update admin set pass='$pass1' where id=1;";‘
$mysql=new MysqlHelper();
$count=$mysql->query($sql);
$mysql.close();
回复讨论(解决方案)
打印出 $sql 就知道了
$id=1; 这个是确定没问题
这个执行就错误
$sql="update admin set pass='$pass1' where id=$id;";
$mysql=new MysqlHelper();
$count=$mysql->query($sql);
$mysql.close();
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 '' at line 1
这个执行就正确
$sql="update admin set pass='$pass1' where id=1;";‘
$mysql=new MysqlHelper();
$count=$mysql->query($sql);
$mysql.close();
红色部分有个分号
$sql="update admin set pass='".$pass1."' where id=$id;"; 改成这个试试
2L正解 不需要加分号 版大说的是解决此类问题的共通办法:查询遇到问题 先打印出sql语句检查一下 十有八九就明白了./
<?php $pass1="123"; $id=1; $sql="update admin set pass='".$pass1."' where id=$id;"; echo $sql; ?>
测试了下,还真是这个问题
同意一楼的的,打印sql语句就知道了
$sql="update admin set pass='".$pass1."' where id=".$id;

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

Long URLs, often cluttered with keywords and tracking parameters, can deter visitors. A URL shortening script offers a solution, creating concise links ideal for social media and other platforms. These scripts are valuable for individual websites a

Following its high-profile acquisition by Facebook in 2012, Instagram adopted two sets of APIs for third-party use. These are the Instagram Graph API and the Instagram Basic Display API.As a developer building an app that requires information from a

Laravel simplifies handling temporary session data using its intuitive flash methods. This is perfect for displaying brief messages, alerts, or notifications within your application. Data persists only for the subsequent request by default: $request-

This is the second and final part of the series on building a React application with a Laravel back-end. In the first part of the series, we created a RESTful API using Laravel for a basic product-listing application. In this tutorial, we will be dev

Laravel provides concise HTTP response simulation syntax, simplifying HTTP interaction testing. This approach significantly reduces code redundancy while making your test simulation more intuitive. The basic implementation provides a variety of response type shortcuts: use Illuminate\Support\Facades\Http; Http::fake([ 'google.com' => 'Hello World', 'github.com' => ['foo' => 'bar'], 'forge.laravel.com' =>

The PHP Client URL (cURL) extension is a powerful tool for developers, enabling seamless interaction with remote servers and REST APIs. By leveraging libcurl, a well-respected multi-protocol file transfer library, PHP cURL facilitates efficient execution of various network protocols, including HTTP, HTTPS, and FTP. This extension offers granular control over HTTP requests, supports multiple concurrent operations, and provides built-in security features.

Do you want to provide real-time, instant solutions to your customers' most pressing problems? Live chat lets you have real-time conversations with customers and resolve their problems instantly. It allows you to provide faster service to your custom

The 2025 PHP Landscape Survey investigates current PHP development trends. It explores framework usage, deployment methods, and challenges, aiming to provide insights for developers and businesses. The survey anticipates growth in modern PHP versio
