Home Backend Development PHP Tutorial Specific analysis of PHP general file upload class_PHP tutorial

Specific analysis of PHP general file upload class_PHP tutorial

Jul 15, 2016 pm 01:29 PM
php upload Down specific Can us document user of kind parse explain Universal

We will explain it to you in detail belowFor example: the user can upload an exhibit and a thumbnail for the exhibit, then the thumbnail file restriction type may be jpg, gif, png, etc., while the exhibit file limit types may be mov, avi, mpeg, etc., the image size may be limited to 100KB, and the audio and video size may be limited to 2MB. The class code is as follows:

<ol class="dp-xml">
<li class="alt"><span><span>class Upload  </span></span></li>
<li class=""><span>{  </span></li>
<li class="alt"><span>    public $InputName;    // 文件上传域控件名  </span></li>
<li class=""><span>      </span></li>
<li class="alt"><span>    /**    </span></li>
<li class=""><span>    * 允许上传的文件类型  </span></li>
<li class="alt"><span>    * 形式为 array('image/jpeg', 'image/png', 'image/gif') 或包含此类数组的数组(与每个上传域控件对应)  </span></li>
<li class=""><span>    */  </span></li>
<li class="alt"><span>    public $FileType;  </span></li>
<li class=""><span>      </span></li>
<li class="alt"><span>    /**    </span></li>
<li class=""><span>    * 最大上传文件大小(单位:byte)  </span></li>
<li class="alt">
<span>    * 形式为 array('image' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $size, 'audio' =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $size)(表示每种应用文件类型所对应的上传大小) 或包含此类数组的数组(与每个上传域控件对应)或一数值(表示所有上传文件均限制在此大小之下)  </span>
</li>
<li class=""><span>    */  </span></li>
<li class="alt"><span>    public $FileMaxSize;   </span></li>
<li class=""><span>      </span></li>
<li class="alt"><span>    public $FileSavePath;  // 文件保存路径(可为数组形式,表示不同上传域上传文件到不同的路径)  </span></li>
<li class=""><span>    public $FileSaveName;  // 文件保存名(不包含后缀名)(可为数组形式,表示不同上传域上传文件保存的不同名称)  </span></li>
<li class="alt"><span>    public $NoteFileFalse; // 文件错误提示  </span></li>
<li class=""><span>    public $NoteFileType;  // 文件类型不符提示  </span></li>
<li class="alt"><span>    public $NoteFileSize;  // 文件大小超出提示  </span></li>
<li class=""><span>      </span></li>
<li class="alt"><span>    /* 上传文件并返回文件名信息(包含后缀名) */  </span></li>
<li class=""><span>    public function UploadFile()  </span></li>
<li class="alt"><span>    {  </span></li>
<li class="">
<span>        $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>CheckFile(); // 检验文件  </span>
</li>
<li class="alt">
<span>        $</span><span class="attribute"><font color="#ff0000">file</font></span><span> = $_FILES[$this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>InputName];  </span>
</li>
<li class="">
<span>        $</span><span class="attribute"><font color="#ff0000">file_save_full_name</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">array</font></span><span>(); // 文件保存名(包含后缀名)  </span>
</li>
<li class="alt"><span>          </span></li>
<li class="">
<span>        foreach ($file['name'] as $</span><span class="attribute"><font color="#ff0000">key</font></span><span> =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $name)  </span>
</li>
<li class="alt"><span>        {  </span></li>
<li class=""><span>            if (!empty($name)) // 文件不为空  </span></li>
<li class="alt"><span>            {  </span></li>
<li class=""><span>                /* 确定文件保存路径 */  </span></li>
<li class="alt">
<span>                if (is_array($this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileSavePath))  </span>
</li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_save_path</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileSavePath[$key];  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>                else   </span></li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_save_path</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileSavePath;  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>                  </span></li>
<li class=""><span>                /* 确定文件保存名(不包含后缀名) */  </span></li>
<li class="alt">
<span>                if (is_array($this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileSaveName))  </span>
</li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_save_name</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileSaveName[$key];  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>                else   </span></li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_save_name</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileSaveName;  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>                  </span></li>
<li class=""><span>                /* 开始保存 */  </span></li>
<li class="alt">
<span>                $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>CreatePath($file_save_path); // 如果路径不存在则创建路径  </span>
</li>
<li class="">
<span>                move_uploaded_file($file["tmp_name"][$key], $file_save_path . $file_save_name . $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>GetSuffix($file['name'][$key]));  </span>
</li>
<li class="alt">
<span>                $file_save_full_name[] = $file_save_name . $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>GetSuffix($file['name'][$key]);  </span>
</li>
<li class=""><span>            }  </span></li>
<li class="alt"><span>            else   </span></li>
<li class=""><span>            {  </span></li>
<li class="alt"><span>                $file_save_full_name[] = null;  </span></li>
<li class=""><span>            }  </span></li>
<li class="alt"><span>        }  </span></li>
<li class=""><span>          </span></li>
<li class="alt"><span>        unlink($file);  </span></li>
<li class=""><span>          </span></li>
<li class="alt"><span>        /* 如果只有一个文件,则返回单个文件名 */  </span></li>
<li class=""><span>        if (count($file_save_full_name) == 1)  </span></li>
<li class="alt"><span>        {  </span></li>
<li class="">
<span>            $</span><span class="attribute"><font color="#ff0000">file_save_full_name</font></span><span> = $file_save_full_name[0];  </span>
</li>
<li class="alt"><span>        }  </span></li>
<li class=""><span>          </span></li>
<li class="alt"><span>        return $file_save_full_name;  </span></li>
<li class=""><span>    }  </span></li>
<li class="alt"><span>      </span></li>
<li class=""><span>    /* 检验文件 */  </span></li>
<li class="alt"><span>    private function CheckFile()  </span></li>
<li class=""><span>    {  </span></li>
<li class="alt">
<span>        $</span><span class="attribute"><font color="#ff0000">file</font></span><span> = $_FILES[$this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>InputName];  </span>
</li>
<li class=""><span>          </span></li>
<li class="alt">
<span>        foreach ($file['name'] as $</span><span class="attribute"><font color="#ff0000">key</font></span><span> =</span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $name)  </span>
</li>
<li class=""><span>        {  </span></li>
<li class="alt"><span>            if (!empty($name)) // 文件不为空  </span></li>
<li class=""><span>            {  </span></li>
<li class="alt">
<span>                $</span><span class="attribute"><font color="#ff0000">type</font></span><span>  = $file['type'][$key];  </span>
</li>
<li class="">
<span>                $</span><span class="attribute"><font color="#ff0000">size</font></span><span>  = $file['size'][$key];  </span>
</li>
<li class="alt">
<span>                $</span><span class="attribute"><font color="#ff0000">error</font></span><span> = $file['error'][$key];  </span>
</li>
<li class=""><span>                  </span></li>
<li class="alt"><span>                /* 确定允许上传文件类型列表 */  </span></li>
<li class="">
<span>                if (is_array($this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileType[0]))  </span>
</li>
<li class="alt"><span>                {  </span></li>
<li class="">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_type</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileType[$key];  </span>
</li>
<li class="alt"><span>                }  </span></li>
<li class=""><span>                else   </span></li>
<li class="alt"><span>                {  </span></li>
<li class="">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_type</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileType;  </span>
</li>
<li class="alt"><span>                }  </span></li>
<li class=""><span>                  </span></li>
<li class="alt"><span>                /* 确定最大上传文件大小 */  </span></li>
<li class="">
<span>                if (is_array($this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileMaxSize))  </span>
</li>
<li class="alt"><span>                {  </span></li>
<li class="">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_max_size_key</font></span><span> = </span><span class="attribute-value"><font color="#0000ff">explode</font></span><span>('/', $type);  </span>
</li>
<li class="alt">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_max_size_key</font></span><span> = $file_max_size_key[0];  </span>
</li>
<li class="">
<span>                    if (is_array($this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileMaxSize[0]))  </span>
</li>
<li class="alt"><span>                    {  </span></li>
<li class="">
<span>                        $</span><span class="attribute"><font color="#ff0000">file_max_size</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileMaxSize[$key][$file_max_size_key];  </span>
</li>
<li class="alt"><span>                    }  </span></li>
<li class=""><span>                    else   </span></li>
<li class="alt"><span>                    {  </span></li>
<li class="">
<span>                        $</span><span class="attribute"><font color="#ff0000">file_max_size</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileMaxSize[$file_max_size_key];  </span>
</li>
<li class="alt"><span>                    }  </span></li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>                else   </span></li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    $</span><span class="attribute"><font color="#ff0000">file_max_size</font></span><span> = $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>FileMaxSize;  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>                  </span></li>
<li class=""><span>                /* 文件错误 */  </span></li>
<li class="alt">
<span>                if ($error </span><span class="tag"><strong><font color="#006699">></font></strong></span><span> 0)  </span>
</li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    die($name . $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>NoteFileFalse);  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>                  </span></li>
<li class=""><span>                /* 文件大小超过最大上传文件大小 */  </span></li>
<li class="alt">
<span>                if ((!is_null($file_max_size) && $size </span><span class="tag"><strong><font color="#006699">></font></strong></span><span> $file_max_size) || ($</span><span class="attribute"><font color="#ff0000">size</font></span><span> == 0))  </span>
</li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    die($name . $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>NoteFileSize);  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span> </span></li>
<li class=""><span>                    /* 文件类型不符 */  </span></li>
<li class="alt"><span>                if (!in_array($type, $file_type))  </span></li>
<li class=""><span>                {  </span></li>
<li class="alt">
<span>                    die($name . $this-</span><span class="tag"><strong><font color="#006699">></font></strong></span><span>NoteFileType);  </span>
</li>
<li class=""><span>                }  </span></li>
<li class="alt"><span>            }  </span></li>
<li class=""><span>        }  </span></li>
<li class="alt"><span>    }  </span></li>
<li class=""><span>      </span></li>
<li class="alt"><span>    /* 获取文件后缀名 */  </span></li>
<li class=""><span>    private function GetSuffix($fileName)  </span></li>
<li class="alt"><span>    {  </span></li>
<li class=""><span>        return substr($fileName, strrpos($fileName, "."));  </span></li>
<li class="alt"><span>    }  </span></li>
<li class=""><span> </span></li>
<li class="alt"><span>    /* 如果路径不存在则创建路径 */  </span></li>
<li class=""><span>    private function CreatePath($filePath)  </span></li>
<li class="alt"><span>    {  </span></li>
<li class=""><span>        if (!file_exists($filePath))  </span></li>
<li class="alt"><span>        {  </span></li>
<li class=""><span>            mkdir($filePath);  </span></li>
<li class="alt"><span>        }  </span></li>
<li class=""><span>    }  </span></li>
<li class="alt"><span>} </span></li>
</ol>
Copy after login

How to use the PHP general file upload class: Next, use the example given at the beginning of this article to illustrate the calling method of this class (haha, the call is very convenient):

$upload_obj = new Upload(); // File upload object

$upload_obj->InputName = 'upload_test'; // File upload domain control name

$upload_obj->FileType = array(array('image/jpeg' , 'image/png'), array('audio/mpeg', 'video/x-msvideo')); // File types allowed to be uploaded

$upload_obj->FileMaxSize = array('image' => ; 100 * 1024, 'audio' => 2 * 1024 * 1024, 'video' => 2 * 1024 * 1024);

$upload_obj->FileSavePath = array('upload/files/s/' , 'upload/files/z/');

$upload_obj->FileSaveName = time();

$upload_obj->NoteFileFalse = 'File error';

$upload_obj->NoteFileType = 'File type does not match';

$upload_obj->NoteFileSize = 'File size exceeds';

$file_save_full_name = $upload_obj->UploadFile(); // Upload and get the full name of the file (base name plus extension name) (if there are multiple files, it is in the form of an array) (the full name is used to store information in the database)

Summary: This can easily achieve several file uploads. In fact, the PHP general file upload class ultimately uses PHP When uploading group files, please note that don’t forget to add [] after the name of the control. The advantage of this is that when you encounter multiple file uploads, you don’t need to loop in the call layer or process the uploads one by one. Our application also Hence the ease.


www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/446390.htmlTechArticleWe will give you a detailed explanation below. For example: users can upload one type of exhibit and upload one for the exhibit. Thumbnail, then the thumbnail file restriction type may be jpg,, gif, png, etc.,...
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

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Repo: How To Revive Teammates
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
4 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

CakePHP Project Configuration CakePHP Project Configuration Sep 10, 2024 pm 05:25 PM

In this chapter, we will understand the Environment Variables, General Configuration, Database Configuration and Email Configuration in CakePHP.

PHP 8.4 Installation and Upgrade guide for Ubuntu and Debian 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

CakePHP Date and Time CakePHP Date and Time Sep 10, 2024 pm 05:27 PM

To work with date and time in cakephp4, we are going to make use of the available FrozenTime class.

CakePHP File upload CakePHP File upload Sep 10, 2024 pm 05:27 PM

To work on file upload we are going to use the form helper. Here, is an example for file upload.

CakePHP Routing CakePHP Routing Sep 10, 2024 pm 05:25 PM

In this chapter, we are going to learn the following topics related to routing ?

Discuss CakePHP Discuss CakePHP Sep 10, 2024 pm 05:28 PM

CakePHP is an open-source framework for PHP. It is intended to make developing, deploying and maintaining applications much easier. CakePHP is based on a MVC-like architecture that is both powerful and easy to grasp. Models, Views, and Controllers gu

How To Set Up Visual Studio Code (VS Code) for PHP Development 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

CakePHP Creating Validators CakePHP Creating Validators Sep 10, 2024 pm 05:26 PM

Validator can be created by adding the following two lines in the controller.

See all articles