Specific analysis of PHP general file upload class

Home

Backend Development

PHP Tutorial

Specific analysis of PHP general file upload class_PHP tutorial

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jul 15, 2016 pm 01:29 PM

phpuploadDownspecificCanusdocumentuserofkindparseexplainUniversal

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>

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.

Statement

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

PHP Performance Tuning for High Traffic WebsitesMay 14, 2025 am 12:13 AM

ThesecrettokeepingaPHP-poweredwebsiterunningsmoothlyunderheavyloadinvolvesseveralkeystrategies:1)ImplementopcodecachingwithOPcachetoreducescriptexecutiontime,2)UsedatabasequerycachingwithRedistolessendatabaseload,3)LeverageCDNslikeCloudflareforservin

Dependency Injection in PHP: Code Examples for BeginnersMay 14, 2025 am 12:08 AM

You should care about DependencyInjection(DI) because it makes your code clearer and easier to maintain. 1) DI makes it more modular by decoupling classes, 2) improves the convenience of testing and code flexibility, 3) Use DI containers to manage complex dependencies, but pay attention to performance impact and circular dependencies, 4) The best practice is to rely on abstract interfaces to achieve loose coupling.

PHP Performance: is it possible to optimize the application?May 14, 2025 am 12:04 AM

Yes,optimizingaPHPapplicationispossibleandessential.1)ImplementcachingusingAPCutoreducedatabaseload.2)Optimizedatabaseswithindexing,efficientqueries,andconnectionpooling.3)Enhancecodewithbuilt-infunctions,avoidingglobalvariables,andusingopcodecaching

PHP Performance Optimization: The Ultimate GuideMay 14, 2025 am 12:02 AM

ThekeystrategiestosignificantlyboostPHPapplicationperformanceare:1)UseopcodecachinglikeOPcachetoreduceexecutiontime,2)Optimizedatabaseinteractionswithpreparedstatementsandproperindexing,3)ConfigurewebserverslikeNginxwithPHP-FPMforbetterperformance,4)

PHP Dependency Injection Container: A Quick StartMay 13, 2025 am 12:11 AM

APHPDependencyInjectionContainerisatoolthatmanagesclassdependencies,enhancingcodemodularity,testability,andmaintainability.Itactsasacentralhubforcreatingandinjectingdependencies,thusreducingtightcouplingandeasingunittesting.

Dependency Injection vs. Service Locator in PHPMay 13, 2025 am 12:10 AM

Select DependencyInjection (DI) for large applications, ServiceLocator is suitable for small projects or prototypes. 1) DI improves the testability and modularity of the code through constructor injection. 2) ServiceLocator obtains services through center registration, which is convenient but may lead to an increase in code coupling.

PHP performance optimization strategies.May 13, 2025 am 12:06 AM

PHPapplicationscanbeoptimizedforspeedandefficiencyby:1)enablingopcacheinphp.ini,2)usingpreparedstatementswithPDOfordatabasequeries,3)replacingloopswitharray_filterandarray_mapfordataprocessing,4)configuringNginxasareverseproxy,5)implementingcachingwi

PHP Email Validation: Ensuring Emails Are Sent CorrectlyMay 13, 2025 am 12:06 AM

PHPemailvalidationinvolvesthreesteps:1)Formatvalidationusingregularexpressionstochecktheemailformat;2)DNSvalidationtoensurethedomainhasavalidMXrecord;3)SMTPvalidation,themostthoroughmethod,whichchecksifthemailboxexistsbyconnectingtotheSMTPserver.Impl

See all articles

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

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

How to fix KB5055612 fails to install in Windows 10?

4 weeks agoByDDD

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Roblox: Grow A Garden - Complete Mutation Guide

3 weeks agoByDDD

Nordhold: Fusion System, Explained

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook

3 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

MantisBT

Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SecLists

SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.