Table of Contents
回复讨论(解决方案)
Home Backend Development PHP Tutorial linux环境 上传文件失败 tmp_name为空

linux环境 上传文件失败 tmp_name为空

Jun 23, 2016 pm 02:17 PM

Linux 上传 权限

phpinfo显示的信息如下
file_uploads On
upload_max_filesize 2M
upload_tmp_dir /Users/ririn/Sites/tmp
然后 我对 这个目录设置了777权限 chmod 777 /Users/ririn/Sites/tmp   是不是还有什么需要设置的地方?
但是上传文件 还是不行啊 
首先tmp目录中就没有任何文件
当然后台用$tmp=$_FILES['mypic']['tmp_name']; 这个也无法得到...

在win中是可以正常运行的  win中的配置和这里的一样 我选的文件也只有100多k  

还是贴一下我的代码 是不是linux的要加上一点什么

                File1: 

                upimg

                
                
            



$tmp=$_FILES['mypic']['tmp_name'];    //空的  
$name=$_FILES['mypic']['name'];
$size=$_FILES['mypic']['size'];
$arr =array(
    'tmp'=>$tmp,
    'name'=>$name,
    'size'=>$size
    );
var_dump($arr);

?>
最后打印的是  array(3) { ["tmp"]=> string(0) "" ["name"]=> string(9) "scoot.png" ["size"]=> int(0) } 这样的
win中完全正常 

回复讨论(解决方案)

可以在form指向的php页面直接print_r($_FILE)试试有无结果.

var_dump($_FILES);

可以在form指向的php页面直接print_r($_FILE)试试有无结果.
啊  结果是这样的  
array(1) { ["mypic"]=> array(5) { ["name"]=> string(9) "scoot.png" ["type"]=> string(0) "" ["tmp_name"]=> string(0) "" ["error"]=> int(2) ["size"]=> int(0) } }
还就是什么都没有啊  只有文件名  

var_dump($_FILES);
结果是这样的  
array(1) { ["mypic"]=> array(5) { ["name"]=> string(9) "scoot.png" ["type"]=> string(0) "" ["tmp_name"]=> string(0) "" ["error"]=> int(2) ["size"]=> int(0) } }
还就是什么都没有啊  只有文件名  

结果中有  ["error"]=> int(2)
手册上说
UPLOAD_ERR_FORM_SIZE
其值为 2,上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。

我就不说了

结果中有  ["error"]=> int(2)
手册上说
UPLOAD_ERR_FORM_SIZE
其值为 2,上传文件的大小超过了 HTML 表单中 MAX_FILE_SIZE 选项指定的值。

我就不说了

嗯  我换了一个文件 好了 但是我原来的那个文件才278K  但是我设置的upload_max_filesize是2M

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

Video Face Swap

Video Face Swap

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

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)

Explain the concept of late static binding in PHP. Explain the concept of late static binding in PHP. Mar 21, 2025 pm 01:33 PM

Article discusses late static binding (LSB) in PHP, introduced in PHP 5.3, allowing runtime resolution of static method calls for more flexible inheritance.Main issue: LSB vs. traditional polymorphism; LSB's practical applications and potential perfo

Explain JSON Web Tokens (JWT) and their use case in PHP APIs. 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 does session hijacking work and how can you mitigate it in PHP? How does session hijacking work and how can you mitigate it in PHP? Apr 06, 2025 am 12:02 AM

Session hijacking can be achieved through the following steps: 1. Obtain the session ID, 2. Use the session ID, 3. Keep the session active. The methods to prevent session hijacking in PHP include: 1. Use the session_regenerate_id() function to regenerate the session ID, 2. Store session data through the database, 3. Ensure that all session data is transmitted through HTTPS.

Describe the SOLID principles and how they apply to PHP development. Describe the SOLID principles and how they apply to PHP development. Apr 03, 2025 am 12:04 AM

The application of SOLID principle in PHP development includes: 1. Single responsibility principle (SRP): Each class is responsible for only one function. 2. Open and close principle (OCP): Changes are achieved through extension rather than modification. 3. Lisch's Substitution Principle (LSP): Subclasses can replace base classes without affecting program accuracy. 4. Interface isolation principle (ISP): Use fine-grained interfaces to avoid dependencies and unused methods. 5. Dependency inversion principle (DIP): High and low-level modules rely on abstraction and are implemented through dependency injection.

How to automatically set permissions of unixsocket after system restart? How to automatically set permissions of unixsocket after system restart? Mar 31, 2025 pm 11:54 PM

How to automatically set the permissions of unixsocket after the system restarts. Every time the system restarts, we need to execute the following command to modify the permissions of unixsocket: sudo...

How to debug CLI mode in PHPStorm? How to debug CLI mode in PHPStorm? Apr 01, 2025 pm 02:57 PM

How to debug CLI mode in PHPStorm? When developing with PHPStorm, sometimes we need to debug PHP in command line interface (CLI) mode...

Explain late static binding in PHP (static::). 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.

See all articles