How to implement error handling encapsulation class in php
This article mainly introduces the error handling encapsulation class implemented by PHP, and analyzes PHP error judgment, prompts and log-related operation techniques based on specific examples. Friends in need can refer to the following
1. Create MyErrorHandler The code of the .php file
is as follows:
<?php class MyErrorHandler { public $message; public $filename; public $line; public $vars = array(); protected $_noticeLog = 'F:\root\noticeLog.log'; public function __construct ($message,$filename,$line,$vars) { $this->message = $message; $this->filename = $filename; $this->line = $line; $this->vars = $vars; } public static function deal ($errno,$errmsg,$filename,$line,$vars) { $self = new self($errno,$errmsg,$filename,$line,$vars); switch ($errno) { case E_USER_ERROR: return $self->dealError(); break; case E_USER_WARNING: case E_WARNING: return $self->dealWarning(); break; case E_NOTICE: case E_USER_NOTICE: return $self->dealNotice(); default: return false; } } /** * 致命的错误 */ public function dealError() { ob_start(); debug_print_backtrace(); $backtrace = ob_get_flush(); $errorMsg = <<<EOF 出现了致命的错误,如下: 产生错误的文件:{$this->filename} 产生错误的信息:{$this->message} 产生错误的行号:{$this->line} 追踪信息{$backtrace} EOF; error_log($errorMsg,1,'279921301@qq.com','From:php[error错误日志]'); exit(1); } /** * 警告的错误 */ public function dealWarning() { $errorMsg = <<<EOF 出现了警告的错误,如下: 产生警告的文件:{$this->filename} 产生警告的信息:{$this->message} 产生警告的行号:{$this->line} EOF; return error_log($errorMsg,1,'279921301@qq.com','From:php[error警告日志]'); } /** * 通知的错误 */ public function dealNotice() { $datetime = date('Y-m-d H:i:s'); $errorMsg = <<<EOF 出现了通知的错误,如下: 产生通知的文件:{$this->filename} 产生通知的信息:{$this->message} 产生通知的行号:{$this->line} 产生通知的时间:{$datetime} EOF; return error_log($errorMsg,3,$this->_noticeLog); } }
2. Test code
<?php include "MyErrorHandler.php"; //报告所有 PHP 错误 error_reporting(-1); //不显示错误信息 ini_set('display_errors',0); set_error_handler(array('MyErrorHandler','deal')); echo $test; //Notice错误 settype($var,'test'); //警告错误 test();
Related recommendations:
PHPError handlingUsage method of function register_shutdown_function
php basic sixError handling
##
The above is the detailed content of How to implement error handling encapsulation class in php. For more information, please follow other related articles on the PHP Chinese website!

TomodifydatainaPHPsession,startthesessionwithsession_start(),thenuse$_SESSIONtoset,modify,orremovevariables.1)Startthesession.2)Setormodifysessionvariablesusing$_SESSION.3)Removevariableswithunset().4)Clearallvariableswithsession_unset().5)Destroythe

Arrays can be stored in PHP sessions. 1. Start the session and use session_start(). 2. Create an array and store it in $_SESSION. 3. Retrieve the array through $_SESSION. 4. Optimize session data to improve performance.

PHP session garbage collection is triggered through a probability mechanism to clean up expired session data. 1) Set the trigger probability and session life cycle in the configuration file; 2) You can use cron tasks to optimize high-load applications; 3) You need to balance the garbage collection frequency and performance to avoid data loss.

Tracking user session activities in PHP is implemented through session management. 1) Use session_start() to start the session. 2) Store and access data through the $_SESSION array. 3) Call session_destroy() to end the session. Session tracking is used for user behavior analysis, security monitoring, and performance optimization.

Using databases to store PHP session data can improve performance and scalability. 1) Configure MySQL to store session data: Set up the session processor in php.ini or PHP code. 2) Implement custom session processor: define open, close, read, write and other functions to interact with the database. 3) Optimization and best practices: Use indexing, caching, data compression and distributed storage to improve performance.

PHPsessionstrackuserdataacrossmultiplepagerequestsusingauniqueIDstoredinacookie.Here'showtomanagethemeffectively:1)Startasessionwithsession_start()andstoredatain$_SESSION.2)RegeneratethesessionIDafterloginwithsession_regenerate_id(true)topreventsessi

In PHP, iterating through session data can be achieved through the following steps: 1. Start the session using session_start(). 2. Iterate through foreach loop through all key-value pairs in the $_SESSION array. 3. When processing complex data structures, use is_array() or is_object() functions and use print_r() to output detailed information. 4. When optimizing traversal, paging can be used to avoid processing large amounts of data at one time. This will help you manage and use PHP session data more efficiently in your actual project.

The session realizes user authentication through the server-side state management mechanism. 1) Session creation and generation of unique IDs, 2) IDs are passed through cookies, 3) Server stores and accesses session data through IDs, 4) User authentication and status management are realized, improving application security and user experience.


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

SublimeText3 Mac version
God-level code editing software (SublimeText3)

DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

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.

WebStorm Mac version
Useful JavaScript development tools
