How to implement php multi-file upload encapsulation-PHP Tutorial-php.cn

Home

Backend Development

PHP Tutorial

How to implement php multi-file upload encapsulation

伊谢尔伦

Jun 27, 2017 pm 02:17 PM

php upload encapsulation

Multiple file upload implementation

1 Use single file encapsulation

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="doAction5.php" method="post" enctype="multipart/form-data">
请选择您要上传的文件：<input type="file" name="myFile1" /><br/>
请选择您要上传的文件：<input type="file" name="myFile2" /><br/>
请选择您要上传的文件：<input type="file" name="myFile3" /><br/>
请选择您要上传的文件：<input type="file" name="myFile4" /><br/>
<input type="submit" value="上传"/>
</form>
</body>
</html>

Copy after login

<?php
//print_r($_FILES);
header(&#39;content-type:text/html;charset=utf-8&#39;);
include_once &#39;upFunc.php&#39;;
foreach ($_FILES as $fileInfo){
    $file[]=uploadFile($fileInfo);
}

Copy after login

The idea here is found in print_r($_FILES). When it is printed out, it is a two-dimensional array, which is very It’s simple, just go through it and use it!

Change the definition of the function above and give some default values

function uploadFile($fileInfo,$path="uploads",$allowExt=array(&#39;jpeg&#39;,&#39;jpg&#39;,&#39;png&#39;,&#39;tif&#39;),$maxSize=10485760){

Copy after login

This way, it is simple, but there are some problems.

It is no problem to upload 4 pictures normally, but if the exit in the function is activated in the middle, it will stop immediately, causing other pictures to be unable to be uploaded.

2 Upgraded version of encapsulation

Aims to implement encapsulation for multiple or single file uploads

First write a static file like this

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="doAction5.php" method="post" enctype="multipart/form-data">
请选择您要上传的文件：<input type="file" name="myFile[]" /><br/>
请选择您要上传的文件：<input type="file" name="myFile[]" /><br/>
请选择您要上传的文件：<input type="file" name="myFile[]" /><br/>
请选择您要上传的文件：<input type="file" name="myFile[]" /><br/>
<input type="submit" value="上传"/>
</form>
</body>
</html>

Copy after login

Print $_FILES

Array
(
    [myFile] => Array
        (
            [name] => Array
                (
                    [0] => test32.png
                    [1] => test32.png
                    [2] => 333.png
                    [3] => test41.png
                )
            [type] => Array
                (
                    [0] => image/png
                    [1] => image/png
                    [2] => image/png
                    [3] => image/png
                )
            [tmp_name] => Array
                (
                    [0] => D:\wamp\tmp\php831C.tmp
                    [1] => D:\wamp\tmp\php834C.tmp
                    [2] => D:\wamp\tmp\php837C.tmp
                    [3] => D:\wamp\tmp\php83BB.tmp
                )
            [error] => Array
                (
                    [0] => 0
                    [1] => 0
                    [2] => 0
                    [3] => 0
                )
            [size] => Array
                (
                    [0] => 46174
                    [1] => 46174
                    [2] => 34196
                    [3] => 38514
                )
        )
)

Copy after login

to get a three-dimensional array.

Complexity is complicated, but it is complicated in a regular way. All the values are together, which is very convenient for us to get the values! !

So first get the file information and turn it into a single file processing information

function getFiles(){
    $i=0;
    foreach($_FILES as $file){
        if(is_string($file[&#39;name&#39;])){  //单文件判定
            $files[$i]=$file;
            $i++;
        }elseif(is_array($file[&#39;name&#39;])){
            foreach($file[&#39;name&#39;] as $key=>$val){  //我的天，这个$key用的diao
                $files[$i][&#39;name&#39;]=$file[&#39;name&#39;][$key];
                $files[$i][&#39;type&#39;]=$file[&#39;type&#39;][$key];
                $files[$i][&#39;tmp_name&#39;]=$file[&#39;tmp_name&#39;][$key];
                $files[$i][&#39;error&#39;]=$file[&#39;error&#39;][$key];
                $files[$i][&#39;size&#39;]=$file[&#39;size&#39;][$key];
                $i++;
            }
        }
    }
    return $files;
    
}

Copy after login

Then if there is an exit error like before, just change the exit. Use res

here

function uploadFile($fileInfo,$path=&#39;./uploads&#39;,$flag=true,$maxSize=1048576,$allowExt=array(&#39;jpeg&#39;,&#39;jpg&#39;,&#39;png&#39;,&#39;gif&#39;)){
    //$flag=true;
    //$allowExt=array(&#39;jpeg&#39;,&#39;jpg&#39;,&#39;gif&#39;,&#39;png&#39;);
    //$maxSize=1048576;//1M
    //判断错误号
    $res=array();
    if($fileInfo[&#39;error&#39;]===UPLOAD_ERR_OK){
        //检测上传得到小
        if($fileInfo[&#39;size&#39;]>$maxSize){
            $res[&#39;mes&#39;]=$fileInfo[&#39;name&#39;].&#39;上传文件过大&#39;;
        }
        $ext=getExt($fileInfo[&#39;name&#39;]);
        //检测上传文件的文件类型
        if(!in_array($ext,$allowExt)){
            $res[&#39;mes&#39;]=$fileInfo[&#39;name&#39;].&#39;非法文件类型&#39;;
        }
        //检测是否是真实的图片类型
        if($flag){
            if(!getimagesize($fileInfo[&#39;tmp_name&#39;])){
                $res[&#39;mes&#39;]=$fileInfo[&#39;name&#39;].&#39;不是真实图片类型&#39;;
            }
        }
        //检测文件是否是通过HTTP POST上传上来的
        if(!is_uploaded_file($fileInfo[&#39;tmp_name&#39;])){
            $res[&#39;mes&#39;]=$fileInfo[&#39;name&#39;].&#39;文件不是通过HTTP POST方式上传上来的&#39;;
        }
        if($res) return $res;
        //$path=&#39;./uploads&#39;;
        if(!file_exists($path)){
            mkdir($path,0777,true);
            chmod($path,0777);
        }
        $uniName=getUniName();
        $destination=$path.&#39;/&#39;.$uniName.&#39;.&#39;.$ext;
        if(!move_uploaded_file($fileInfo[&#39;tmp_name&#39;],$destination)){
            $res[&#39;mes&#39;]=$fileInfo[&#39;name&#39;].&#39;文件移动失败&#39;;
        }
        $res[&#39;mes&#39;]=$fileInfo[&#39;name&#39;].&#39;上传成功&#39;;
        $res[&#39;dest&#39;]=$destination;
        return $res;
        
    }else{
        //匹配错误信息
        switch ($fileInfo [&#39;error&#39;]) {
            case 1 :
                $res[&#39;mes&#39;] = &#39;上传文件超过了PHP配置文件中upload_max_filesize选项的值&#39;;
                break;
            case 2 :
                $res[&#39;mes&#39;] = &#39;超过了表单MAX_FILE_SIZE限制的大小&#39;;
                break;
            case 3 :
                $res[&#39;mes&#39;] = &#39;文件部分被上传&#39;;
                break;
            case 4 :
                $res[&#39;mes&#39;] = &#39;没有选择上传文件&#39;;
                break;
            case 6 :
                $res[&#39;mes&#39;] = &#39;没有找到临时目录&#39;;
                break;
            case 7 :
            case 8 :
                $res[&#39;mes&#39;] = &#39;系统错误&#39;;
                break;
        }
        return $res;
    }
}

Copy after login

encapsulates two small

function getExt($filename){
    return strtolower(pathinfo($filename,PATHINFO_EXTENSION));
}
/**
 * 产生唯一字符串
 * @return string
 */
function getUniName(){
    return md5(uniqid(microtime(true),true));
}

Copy after login

and then uses the multiple attribute to input multiple files statically;

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="doAction6.php" method="POST" enctype="multipart/form-data">
请选择您要上传的文件：<input type="file" name="myFile[]" multiple=&#39;multiple&#39; /><br/>
<input type="submit" value="上传"/>
</form>
</body>
</html>

Copy after login

<?php 
//print_r($_FILES);
header("content-type:text/html;charset=utf-8");
require_once &#39;upFunc2.php&#39;;
require_once &#39;common.func.php&#39;;
$files=getFiles();
// print_r($files);
foreach($files as $fileInfo){
    $res=uploadFile($fileInfo);
    echo $res[&#39;mes&#39;],&#39;<br/>&#39;;
    $uploadFiles[]=@$res[&#39;dest&#39;];
}
$uploadFiles=array_values(array_filter($uploadFiles));
//print_r($uploadFiles);

Copy after login

Several files like this can achieve a more powerful implementation The process-oriented function of uploading files.

The above is the detailed content of How to implement php multi-file upload encapsulation. For more information, please follow other related articles on the PHP Chinese website!

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

Video Face Swap

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

Hot Article

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

4 weeks ago By DDD

How to fix KB5055523 fails to install in Windows 11?

3 weeks ago By DDD

InZoi: How To Apply To School And University

1 months ago By DDD

How to fix KB5055518 fails to install in Windows 10?

3 weeks ago By DDD

Where to find the Site Office Key in Atomfall

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?

7906

Java Tutorial

1652

CakePHP Tutorial

1411

Laravel Tutorial

1303

PHP Tutorial

1248

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

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,

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 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.

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

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.

PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

See all articles