新手求教!关于搜索的一个问题
自学php,做搜索框时遇到个问题,当我输入搜索的字符串只要是空格开头后面随便什么都可以,他都就会把表里全部数据都显示出来,弄了半天不明白是什么问题,额,代码是这样的
if(isset($_GET['sousuok'])){
if(ctype_space($_GET['sousuok'])){
echo "非法数据!";
}else{
$s=explode(" ",$_GET['sousuok']);
require_once '../connvar.php';
$dbc=mysqli_connect(DB_HOST,DB_USER,DB_PASSWORD,DB_NAME);
mysql_query("SET NAMES 'UTF8'");
$exec="select * from cangku where name like '%$s[0]%' or '%$s[1]%';";
$result=mysqli_query($dbc,$exec);
if(mysqli_num_rows($result)>0){
while($rs=mysqli_fetch_object($result)){
$name=$rs->name;
$tu=$rs->biaoqiantu;
echo "
".$name.""."
};
echo mysqli_num_rows($result);
}else{
echo mysqli_num_rows($result);
echo "没有找到!";
};
mysqli_free_result();//释放内存
mysqli_close();//断开数据库
}
}
?>
回复讨论(解决方案)
$s=explode(" ",$_GET['sousuok']);
如果 $_GET['sousuok'] 以空格开头,那么 $s[0] 就是空串
于是 $exec="select * from cangku where name like '%$s[0]%' or '%$s[1]%';";
就变成 $exec="select * from cangku where name like '%%' or '%查询字%';";
name like '%%' 总是会成立的,自然就是全部内容了

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

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

In this article, we're going to explore the notification system in the Laravel web framework. The notification system in Laravel allows you to send notifications to users over different channels. Today, we'll discuss how you can send notifications ov
