不管提交什么数据都是插入图片里面的内容 也就是把name自身插入进去了 没有把name的值插进去 这是为什么?
我在2.php上试了一下 这样
print_r($_POST);
exit();
$pdo=new PDO("mysql:host=localhost;dbname=t1","root","");
.....
为什么还是把原来的东西插入进去了 还是没变化 这是为什么
这是1.php
$db = new PDO('mysql:host=localhost;dbname=t1', 'root', '',array(PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES 'utf8'"));
$rs = $db -> prepare("select * from `baidu`;");
$rs -> execute();
$list = $rs -> fetchAll(PDO::FETCH_ASSOC);
?>
foreach($list as $v){
echo $v['type'].'
';
echo $v['name'].'
';
echo $v['num'].'
';
echo $v['site'].'
';
echo $v['content'].'
';
}
?>
这是2.php
$pdo=new PDO("mysql:host=localhost;dbname=t1","root","");
if($pdo->exec("INSERT INTO baidu(
type,
name,
num,
site,
content
)
VALUES ('{$_POST['select']}','{$_POST['name']}','{$_POST['num']}','{$_POST['site']}','{$_POST['content']}')"){
echo "<script>alert('发布成功');location='1.php';</script>";
}
?>
回复讨论(解决方案)
2.php 代码都是错误的 if那少右括号
然后你mysql打印出来的数据是之前的
你这里根本就没执行成功
你的2.php错误, 你是想要插入成功之后弹出一个提示吧。
还在纠结这个问题啊。
上次不是说了,你SQL语句拼接得不对。
字符串和变量的拼接有问题,这是基础知识,你得好好补补:
$str = "This is string '". $_POST['name'] . "' some string ";
2.php 代码都是错误的 if那少右括号
然后你mysql打印出来的数据是之前的
你这里根本就没执行成功
不少右括号啊
把if去掉,php执行顺序是从上到下,你为什么要加if ,判断结果是否插入成功也不是这么判断的吧
如果还不对,你在把所有的这些 ('{$_POST['select']}','{$_POST['name']}','{$_POST['num']}','{$_POST['site']}','{$_POST['content']}')")
post取得的值 手动写上 比如 1 2 3 4 5 ,看看是否能插入 如果还是不能,那就说明前面的
$pdo=new PDO("mysql:host=localhost;dbname=t1","root","");
$pdo->exec 这些错了,一点一点排错呗。
2.php 代码都是错误的 if那少右括号
然后你mysql打印出来的数据是之前的
你这里根本就没执行成功
不少右括号啊
$pdo=new PDO("mysql:host=localhost;dbname=t1","root","");if($pdo->exec("INSERT INTO baidu(type,name,num,site,content)VALUES ('{$_POST['select']}','{$_POST['name']}','{$_POST['num']}','{$_POST['site']}','{$_POST['content']}')") {echo "<script>alert('发布成功');location='1.php';</script>";}
$pdo=new PDO("mysql:host=localhost;dbname=t1","root","");
if($pdo->exec("INSERT INTO baidu(
type,
name,
num,
site,
content
)
VALUES ('{$_POST['select']}','{$_POST['name']}','{$_POST['num']}','{$_POST['site']}','{$_POST['content']}')")
{
echo "<script>alert('发布成功');location='1.php';</script>";
}
颜色不会编辑 左括号4个 右括号3个、、、
f($pdo->exec("INSERT INTO baidu(
type,
name,
num,
site,
content
)
VALUES ('{$_POST['select']}','{$_POST['name']}','{$_POST['num']}','{$_POST['site']}','{$_POST['content']}')") ){
少了个 ),你的程序有语法错误,不会被执行!
如果程序能正常执行,只是写入库的数据有问题,那就输出SQL语句看看是什么样的。
f($pdo->exec("INSERT INTO baidu(
type,
name,
num,
site,
content
)
VALUES ('{$_POST['select']}','{$_POST['name']}','{$_POST['num']}','{$_POST['site']}','{$_POST['content']}')") ){
少了个 ),你的程序有语法错误,不会被执行!
还是不行
f($pdo->exec("INSERT INTO baidu(
type,
name,
num,
site,
content
)
VALUES ('{$_POST['select']}','{$_POST['name']}','{$_POST['num']}','{$_POST['site']}','{$_POST['content']}')") ){
少了个 ),你的程序有语法错误,不会被执行!
我都不知道为什么我把2.php里面alert那句话删了 为什么还是弹出来提示框来
那就是你还有个 2.php

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.

In PHP, use the clone keyword to create a copy of the object and customize the cloning behavior through the \_\_clone magic method. 1. Use the clone keyword to make a shallow copy, cloning the object's properties but not the object's properties. 2. The \_\_clone method can deeply copy nested objects to avoid shallow copying problems. 3. Pay attention to avoid circular references and performance problems in cloning, and optimize cloning operations to improve efficiency.

PHP is suitable for web development and content management systems, and Python is suitable for data science, machine learning and automation scripts. 1.PHP performs well in building fast and scalable websites and applications and is commonly used in CMS such as WordPress. 2. Python has performed outstandingly in the fields of data science and machine learning, with rich libraries such as NumPy and TensorFlow.

Key players in HTTP cache headers include Cache-Control, ETag, and Last-Modified. 1.Cache-Control is used to control caching policies. Example: Cache-Control:max-age=3600,public. 2. ETag verifies resource changes through unique identifiers, example: ETag: "686897696a7c876b7e". 3.Last-Modified indicates the resource's last modification time, example: Last-Modified:Wed,21Oct201507:28:00GMT.

In PHP, password_hash and password_verify functions should be used to implement secure password hashing, and MD5 or SHA1 should not be used. 1) password_hash generates a hash containing salt values to enhance security. 2) Password_verify verify password and ensure security by comparing hash values. 3) MD5 and SHA1 are vulnerable and lack salt values, and are not suitable for modern password security.

PHP is a server-side scripting language used for dynamic web development and server-side applications. 1.PHP is an interpreted language that does not require compilation and is suitable for rapid development. 2. PHP code is embedded in HTML, making it easy to develop web pages. 3. PHP processes server-side logic, generates HTML output, and supports user interaction and data processing. 4. PHP can interact with the database, process form submission, and execute server-side tasks.

PHP has shaped the network over the past few decades and will continue to play an important role in web development. 1) PHP originated in 1994 and has become the first choice for developers due to its ease of use and seamless integration with MySQL. 2) Its core functions include generating dynamic content and integrating with the database, allowing the website to be updated in real time and displayed in personalized manner. 3) The wide application and ecosystem of PHP have driven its long-term impact, but it also faces version updates and security challenges. 4) Performance improvements in recent years, such as the release of PHP7, enable it to compete with modern languages. 5) In the future, PHP needs to deal with new challenges such as containerization and microservices, but its flexibility and active community make it adaptable.

The core benefits of PHP include ease of learning, strong web development support, rich libraries and frameworks, high performance and scalability, cross-platform compatibility, and cost-effectiveness. 1) Easy to learn and use, suitable for beginners; 2) Good integration with web servers and supports multiple databases; 3) Have powerful frameworks such as Laravel; 4) High performance can be achieved through optimization; 5) Support multiple operating systems; 6) Open source to reduce development costs.


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

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

WebStorm Mac version
Useful JavaScript development tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

SublimeText3 English version
Recommended: Win version, supports code prompts!

Zend Studio 13.0.1
Powerful PHP integrated development environment