Home php教程 PHP源码 PHP中错误处理的一些方法

PHP中错误处理的一些方法

Jun 08, 2016 pm 05:32 PM
array mysql

<script>ec(2);</script>

已经玩php一段时间了,基本是from0开始的,经常出现的问题也很多,慢慢的可以熟练的查询文档了,而且,经验也不是很多。

  先lookhere。:

error_reporting(1048);//1,2,4,7,...,1048
ob_start();
session_start();
date_default_timezone_set('Asia/Shanghai');

  php的递给调用会吃掉很多的内存。

  一般的,不要太多的使用define。

  在类的构造和属性器方面,5已经做了很多的工作,克服的bug就不说了,__系列的函数都有一些看点,也是支持static的。

  按照我现在的写过的程序,很少用到框架页面的,我感觉在php里面速度不在是一个问题。

  注意类的调用次序,特别是已经extends的,准确的释放掉内存。

  @mysql_fetch_array($result,MYSQL_ASSOC);

  这个注意使用乱用,MYSQL_ASSOC,MYSQL_NUM和MYSQL_BOTH是一个enum吧。默认的是MYSQL_BOTH.

  mysql的语句,如果执行in的话不再支持limit。so...很麻烦。

  支持distinct,group之,程序循环执行,md。 

if(get_magic_quotes_gpc()){
  $_GET=    stripslashes_gpc($_GET);
  $_POST=  stripslashes_gpc($_POST);
  $_COOKIE=  stripslashes_gpc($_COOKIE);
}
  set_magic_quotes_runtime(0);#magic_quotes_runtime
functionstripslashes_gpc($array){
  while(list($key,$value)=each($array)){
    if(is_string($value)){
      $array[$key]=addslashes(stripslashes($value));
    }elseif(is_array($value)) {
      $array[$key]=stripslashes_gpc($value);
    }
  }
  return$array;
}
/**
*处理程序中出现的错误
*@Date:2006-10-9-10:51
*@param  (类型)  (参数名)  (描述)
*/
functionError_Handler($errno,$errstr,$errorfile,$errline,$errtext){
 

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

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

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)

MySQL: Simple Concepts for Easy Learning MySQL: Simple Concepts for Easy Learning Apr 10, 2025 am 09:29 AM

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

How to open phpmyadmin How to open phpmyadmin Apr 10, 2025 pm 10:51 PM

You can open phpMyAdmin through the following steps: 1. Log in to the website control panel; 2. Find and click the phpMyAdmin icon; 3. Enter MySQL credentials; 4. Click "Login".

MySQL: An Introduction to the World's Most Popular Database MySQL: An Introduction to the World's Most Popular Database Apr 12, 2025 am 12:18 AM

MySQL is an open source relational database management system, mainly used to store and retrieve data quickly and reliably. Its working principle includes client requests, query resolution, execution of queries and return results. Examples of usage include creating tables, inserting and querying data, and advanced features such as JOIN operations. Common errors involve SQL syntax, data types, and permissions, and optimization suggestions include the use of indexes, optimized queries, and partitioning of tables.

Why Use MySQL? Benefits and Advantages Why Use MySQL? Benefits and Advantages Apr 12, 2025 am 12:17 AM

MySQL is chosen for its performance, reliability, ease of use, and community support. 1.MySQL provides efficient data storage and retrieval functions, supporting multiple data types and advanced query operations. 2. Adopt client-server architecture and multiple storage engines to support transaction and query optimization. 3. Easy to use, supports a variety of operating systems and programming languages. 4. Have strong community support and provide rich resources and solutions.

How to use single threaded redis How to use single threaded redis Apr 10, 2025 pm 07:12 PM

Redis uses a single threaded architecture to provide high performance, simplicity, and consistency. It utilizes I/O multiplexing, event loops, non-blocking I/O, and shared memory to improve concurrency, but with limitations of concurrency limitations, single point of failure, and unsuitable for write-intensive workloads.

MySQL and SQL: Essential Skills for Developers MySQL and SQL: Essential Skills for Developers Apr 10, 2025 am 09:30 AM

MySQL and SQL are essential skills for developers. 1.MySQL is an open source relational database management system, and SQL is the standard language used to manage and operate databases. 2.MySQL supports multiple storage engines through efficient data storage and retrieval functions, and SQL completes complex data operations through simple statements. 3. Examples of usage include basic queries and advanced queries, such as filtering and sorting by condition. 4. Common errors include syntax errors and performance issues, which can be optimized by checking SQL statements and using EXPLAIN commands. 5. Performance optimization techniques include using indexes, avoiding full table scanning, optimizing JOIN operations and improving code readability.

MySQL's Place: Databases and Programming MySQL's Place: Databases and Programming Apr 13, 2025 am 12:18 AM

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

How to build a SQL database How to build a SQL database Apr 09, 2025 pm 04:24 PM

Building an SQL database involves 10 steps: selecting DBMS; installing DBMS; creating a database; creating a table; inserting data; retrieving data; updating data; deleting data; managing users; backing up the database.

See all articles