php导出csv文件乱码有关问题解决办法
php导出csv文件乱码问题解决方法
php导出csv文件乱码问题解决方法
说 这个问题之前首先来说一下什么是CSV文件?Comma Separator Value(逗号分隔值)是也。常常用来数据转换的中间文件存在,比如:从Mysql中导出数据到CSV,导入CSV到SqlServer中。在 Linux下用PHP脚本从Mysql数据库中将表的数据按照条件导出成csv,使用utf-8编码导出CSV文件,打开后里边的中文成了乱码 (Windows下CSV文件默认与Microsoft Excel关联),用Notepad++或者Word打开正常,不过排版很乱。原因:BOM惹的祸,微软惹的祸。
什么是BOM?Byte Order Mark(比特序标记)是也。
为 了识别 Unicode 文件,Microsoft 建议所有的 Unicode 文件应该以 ZERO WIDTH NOBREAK SPACE字符开头。这作为一个”特征符”或”字节顺序标记(byte-order mark,BOM)”来识别文件中使用的编码和字节顺序(big-endian或little-endian),具体的对应关系见下表。
?
00 00 FE FF | UTF-32, big-endian |
FF FE 00 00 | UTF-32, little-endian |
FE FF | UTF-16, big-endian |
FF FE | UTF-16, little-endian |
EF BB BF | UTF-8 |
?
类Unix系统中并没有使用 BOM,因为它会破坏现有的 ASCII 文件的语法约定。
实现代码如果
<?php$str = "哈,哈,哈,哈";$fp = fopen("a.csv","a");//在写入数据之前先把bom头写到文件里fwrite($fp,"\xEF\xBB\xBF");//再写入数据 php程序员站fwrite($fp,$str);phperz.comfclose($fp);phperz.com?>
注:在写csv文件时确保php源码是utf-8,并且无BOM,并且没有输出任何内容。
BOM实际上挺烦人,如果你的网页(*.html)有BOM,在IE6.x下面打开会发现一神奇的空行,Firefox下却没有
?
来源:http://www.i-felix.cn/blog/phpdao-chu-csvwen-jian-luan-ma-wen-ti-jie-jue-fang-fa-gai-si-de-wei-ruan
?
?

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

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

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

If you are an experienced PHP developer, you might have the feeling that you’ve been there and done that already.You have developed a significant number of applications, debugged millions of lines of code, and tweaked a bunch of scripts to achieve op

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

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,

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

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

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.

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.
