Practical PHP file upload code demonstration_PHP tutorial-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

Practical PHP file upload code demonstration_PHP tutorial

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jul 15, 2016 pm 01:26 PM

php one time upload learn code develop publish Multi-user Actual combat I document Demo

After a long period of development of PHP, many users know PHP very well. Here I will publish the PHP file upload code and discuss it with everyone. PHP itself is a simple yet powerful language. The PHP language has core features such as powerful string and array processing capabilities, and has greatly improved support for object-oriented programming (PHP5 and above). By using standard and optional extension modules, PHP applications can connect to more than a dozen databases such as MySQL or Oracle, draw, create PDF files, and create and parse XML files. You can also use C language to write your own PHP extension module.

For example, provide a PHP interface function in an existing code base. You can also run PHP under Windows, use COM to control other Windows applications such as Word and Excel, or use ODBC to connect to a database. In China, PHP once kept pace with Microsoft's ASP and was a commonly used network programming language. ASP3.0 has been abandoned by Microsoft and will no longer be updated. Some people may think that PHP is also going to be dead soon, right? However, the fact is exactly the opposite. PHP is not only developing at a high speed, leaving ASP far behind, but also gradually becoming the most widely used and popular language on the Internet.

PHP upload file code

<ol class="dp-xml">
<li class="alt"><span><span class="tag"><</SPAN><SPAN class=tag-name>html</SPAN><SPAN class=tag>></span><span class="tag"><</SPAN><SPAN class=tag-name>head</SPAN><SPAN class=tag>></span><span> </span></span></li>
<li class="">
<span></span><span class="tag"><</SPAN><SPAN class=tag-name>title</SPAN><SPAN class=tag>></span><span>上载文件表单</span><span class="tag"></</SPAN><SPAN class=tag-name>title</SPAN><SPAN class=tag>></span><span class="tag"></</SPAN><SPAN class=tag-name>head</SPAN><SPAN class=tag>></span><span>   </span>
</li>
<li class="alt">
<span></span><span class="tag"><</SPAN><SPAN class=tag-name>body</SPAN><SPAN class=tag>></span><span>   </span>
</li>
<li class="">
<span></span><span class="tag"><</SPAN><SPAN class=tag-name>form</SPAN><SPAN> </SPAN><SPAN class=attribute>enctype</SPAN><SPAN>=</SPAN><SPAN class=attribute-value>"multipart/form-data"</SPAN><SPAN> </SPAN><SPAN class=attribute>action</SPAN><SPAN>=</SPAN><SPAN class=attribute-value>""</SPAN><SPAN> </SPAN><SPAN class=attribute>method</SPAN><SPAN>=</SPAN><SPAN class=attribute-value>"post"</SPAN><SPAN class=tag>></span><span>   </span>
</li>
<li class="alt">
<span>请选择文件： </span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span><span> </span>
</li>
<li class="">
<span></span><span class="tag"><</SPAN><SPAN class=tag-name>input</SPAN><SPAN> </SPAN><SPAN class=attribute>name</SPAN><SPAN>=</SPAN><SPAN class=attribute-value>"upload_file"</SPAN><SPAN> </SPAN><SPAN class=attribute>type</SPAN><SPAN>=</SPAN><SPAN class=attribute-value>"file"</SPAN><SPAN class=tag>></span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span><span> </span>
</li>
<li class="alt">
<span></span><span class="tag"><</SPAN><SPAN class=tag-name>input</SPAN><SPAN> </SPAN><SPAN class=attribute>type</SPAN><SPAN>=</SPAN><SPAN class=attribute-value>"submit"</SPAN><SPAN> </SPAN><SPAN class=attribute>value</SPAN><SPAN>=</SPAN><SPAN class=attribute-value>"上传文件"</SPAN><SPAN class=tag>></span><span>   </span>
</li>
<li class="">
<span></span><span class="tag"></</SPAN><SPAN class=tag-name>form</SPAN><SPAN class=tag>></span><span>   </span>
</li>
<li class="alt">
<span></span><span class="tag"></</SPAN><SPAN class=tag-name>body</SPAN><SPAN class=tag>></span><span> </span>
</li>
<li class="">
<span></span><span class="tag"></</SPAN><SPAN class=tag-name>html</SPAN><SPAN class=tag>></span><span>   </span>
</li>
<li class="alt">
<span></span><span class="tag"><?</SPAN><SPAN> </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute>upload_file</SPAN><SPAN>=$_FILES['upload_file']['tmp_name'];  </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute>upload_file_name</SPAN><SPAN>=$_FILES['upload_file']['name'];  </SPAN></SPAN><LI class=""><SPAN> </SPAN><LI class=alt><SPAN>if($upload_file){  </SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute>file_size_max</SPAN><SPAN> = </SPAN><SPAN class=attribute-value>1000</SPAN><SPAN>*1000;// 1M限制文件上传最大容量(bytes)  </SPAN></SPAN><LI class=alt><SPAN>$</SPAN><SPAN class=attribute>store_dir</SPAN><SPAN> = </SPAN><SPAN class=attribute-value>"d:/"</SPAN><SPAN>;// 上传文件的储存位置  </SPAN></SPAN><LI class=""><SPAN>$</SPAN><SPAN class=attribute>accept_overwrite</SPAN><SPAN> = </SPAN><SPAN class=attribute-value>1</SPAN><SPAN>;//是否允许覆盖相同文件  </SPAN></SPAN><LI class=alt><SPAN>// 检查文件大小  </SPAN><LI class=""><SPAN>if ($upload_file_size </SPAN><SPAN class=tag>></span><span> $file_size_max) {  </span>
</li>
<li class="alt"><span>echo "对不起，你的文件容量大于规定";  </span></li>
<li class=""><span>exit;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span> </span></li>
<li class="alt"><span>// 检查读写文件  </span></li>
<li class=""><span>if (file_exists($store_dir . $upload_file_name) && !$accept_overwrite) {  </span></li>
<li class="alt"><span>Echo "存在相同文件名的文件";  </span></li>
<li class=""><span>exit;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span> </span></li>
<li class="alt"><span>//复制文件到指定目录  </span></li>
<li class=""><span>if (!move_uploaded_file($upload_file,$store_dir.$upload_file_name)) {  </span></li>
<li class="alt"><span>echo "复制文件失败";  </span></li>
<li class=""><span>exit;  </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span> </span></li>
<li class="alt"><span>}  </span></li>
<li class=""><span> </span></li>
<li class="alt">
<span>Echo "</span><span class="tag"><</SPAN><SPAN class=tag-name>p</SPAN><SPAN class=tag>></span><span>你上传了文件:";  </span>
</li>
<li class=""><span>echo$_FILES['upload_file']['name'];  </span></li>
<li class="alt">
<span>echo "</span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span><span>";  </span>
</li>
<li class=""><span>//客户端机器文件的原名称。   </span></li>
<li class="alt"><span> </span></li>
<li class=""><span>Echo "文件的 MIME 类型为:";  </span></li>
<li class="alt"><span>echo $_FILES['upload_file']['type'];  </span></li>
<li class=""><span>//文件的 MIME 类型，需要浏览器提供该信息的支持，例如“image/gif”。   </span></li>
<li class="alt">
<span>echo "</span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span><span>";  </span>
</li>
<li class=""><span> </span></li>
<li class="alt"><span>Echo "上传文件大小:";  </span></li>
<li class=""><span>echo $_FILES['upload_file']['size'];  </span></li>
<li class="alt"><span>//已上传文件的大小，单位为字节。   </span></li>
<li class="">
<span>echo "</span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span><span>";  </span>
</li>
<li class="alt"><span> </span></li>
<li class=""><span>Echo "文件上传后被临时储存为:";  </span></li>
<li class="alt"><span>echo $_FILES['upload_file']['tmp_name'];  </span></li>
<li class=""><span>//文件被上传后在服务端储存的临时文件名。   </span></li>
<li class="alt">
<span>echo "</span><span class="tag"><</SPAN><SPAN class=tag-name>br</SPAN><SPAN class=tag>></span><span>";  </span>
</li>
<li class=""><span> </span></li>
<li class="alt"><span> </span></li>
<li class="">
<span>$</span><span class="attribute">Erroe</span><span>=$_FILES['upload_file']['error'];  </span>
</li>
<li class="alt"><span>switch($Erroe){  </span></li>
<li class=""><span>case 0:  </span></li>
<li class="alt"><span>Echo "上传成功"; break;  </span></li>
<li class=""><span>case 1:  </span></li>
<li class="alt"><span>Echo "上传的文件超过了 php.ini 中 upload_max_filesize 选项限制的值."; break;  </span></li>
<li class=""><span>case 2:  </span></li>
<li class="alt"><span>Echo "上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。";break;  </span></li>
<li class=""><span>case 3:  </span></li>
<li class="alt"><span>Echo "文件只有部分被上传";break;  </span></li>
<li class=""><span>case 4:  </span></li>
<li class="alt"><span>Echo "没有文件被上传";break;  </span></li>
<li class=""><span>}  </span></li>
<li class="alt">
<span></span><span class="tag">?></span><span> </span>
</li>
</ol>

Copy after login

The above is the detailed PHP file upload code, I hope it will be helpful to everyone.

Statement of this Website

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

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

Assassin's Creed Shadows: Seashell Riddle Solution

3 weeks ago By DDD

What's New in Windows 11 KB5054979 & How to Fix Update Issues

2 weeks ago By DDD

Where to find the Crane Control Keycard in Atomfall

3 weeks ago By DDD

Saving in R.E.P.O. Explained (And Save Files)

1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Assassin's Creed Shadows - How To Find The Blacksmith And Unlock Weapon And Armour Customisation

4 weeks ago By DDD

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

Where is the login entrance for gmail email?

7569

CakePHP Tutorial

1386

What is the format of the account name of steam

win11 activation key permanent

nyt connections hints and answers

107

Related knowledge

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian Dec 24, 2024 pm 04:42 PM

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

How To Set Up Visual Studio Code (VS Code) for PHP Development Dec 20, 2024 am 11:31 AM

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

7 PHP Functions I Regret I Didn't Know Before Nov 13, 2024 am 09:42 AM

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

How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

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

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. Apr 05, 2025 am 12:04 AM

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,

PHP Program to Count Vowels in a String Feb 07, 2025 pm 12:12 PM

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

Explain late static binding in PHP (static::). Apr 03, 2025 am 12:04 AM

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

What are PHP magic methods (__construct, __destruct, __call, __get, __set, etc.) and provide use cases? Apr 03, 2025 am 12:03 AM

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

See all articles