Call-time pass-by-reference has been deprecated 问题
这是一个获取本地IP的函数
源码如下:
- PHP code
<!--Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->public function winip( ) { @$this->execcmd( "ipconfig /all", &$this->return_array ); if ( $this->return_array ) { return $this->return_array; } $cmdir= $_SERVER['WINDIR']."\\system32\\ipconfig.exe"; if ( file_exists( $cmdir) ) { @$this->execcmd??( $_ocmdir ." /all", &$this->return_array ); } else { @$this->execcmd??( $_SERVER['WINDIR']."\\system\\ipconfig.exe /all", &$this->return_array ); } return $this->return_array; } public function linuxip( ) { @$this->execcmd ( "ifconfig -a", &$this->return_array ); return $this->return_array; } public function execcmd ( $a , $b) { $b=shell_exec($a); }}
执行后提示标题错误,请高手帮忙~
------解决方案--------------------
execcmd 后面有 ?? 是怎么回事?
------解决方案--------------------
http://yourin.blogbus.com/logs/43604755.html
------解决方案--------------------
又被无视了,算……
------解决方案--------------------
@$this->execcmd和左括号之间有unicode字符,难道你的编辑器没显示这个?
------解决方案--------------------
public function execcmd ( $a , $b)
{
$b=shell_exec($a);
}
在类内这样写会不会有问题?
你的出错信息主要是说引用传递被抛弃
会不会是这个? &$this->return_array
------解决方案--------------------
呵呵,
这句说的是不推荐对函数调用的参数使用"引用", 这个是php5(或5.3)后新引进的错误信息,因为php5开始对象都是用引用操作的.
这只是一个警告信息,所以程序运行不应该被影响. 你可以屏蔽错误信息,或将allow_call_time_pass_reference 设为true
如果你的朋友没报该信息,只是他的版本问题或设置或他屏蔽了错误信息.
如果你的运行有其它问题,应该与此无关.

Load balancing affects session management, but can be resolved with session replication, session stickiness, and centralized session storage. 1. Session Replication Copy session data between servers. 2. Session stickiness directs user requests to the same server. 3. Centralized session storage uses independent servers such as Redis to store session data to ensure data sharing.

Sessionlockingisatechniqueusedtoensureauser'ssessionremainsexclusivetooneuseratatime.Itiscrucialforpreventingdatacorruptionandsecuritybreachesinmulti-userapplications.Sessionlockingisimplementedusingserver-sidelockingmechanisms,suchasReentrantLockinJ

Alternatives to PHP sessions include Cookies, Token-based Authentication, Database-based Sessions, and Redis/Memcached. 1.Cookies manage sessions by storing data on the client, which is simple but low in security. 2.Token-based Authentication uses tokens to verify users, which is highly secure but requires additional logic. 3.Database-basedSessions stores data in the database, which has good scalability but may affect performance. 4. Redis/Memcached uses distributed cache to improve performance and scalability, but requires additional matching

Sessionhijacking refers to an attacker impersonating a user by obtaining the user's sessionID. Prevention methods include: 1) encrypting communication using HTTPS; 2) verifying the source of the sessionID; 3) using a secure sessionID generation algorithm; 4) regularly updating the sessionID.

The article discusses PHP, detailing its full form, main uses in web development, comparison with Python and Java, and its ease of learning for beginners.

PHP handles form data using $\_POST and $\_GET superglobals, with security ensured through validation, sanitization, and secure database interactions.

The article compares PHP and ASP.NET, focusing on their suitability for large-scale web applications, performance differences, and security features. Both are viable for large projects, but PHP is open-source and platform-independent, while ASP.NET,

PHP's case sensitivity varies: functions are insensitive, while variables and classes are sensitive. Best practices include consistent naming and using case-insensitive functions for comparisons.


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

Hot Tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

Zend Studio 13.0.1
Powerful PHP integrated development environment

Atom editor mac version download
The most popular open source editor

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
