Home Backend Development PHP Tutorial php导出csv文件乱码有关问题解决办法

php导出csv文件乱码有关问题解决办法

Jun 13, 2016 pm 01:02 PM
bom csv php

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。

?

Bytes Encoding Form
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.com
fclose($fp);
phperz.com
?>
Copy after login

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

?

?

1 楼 xiaoshenge 2012-09-03  
学习了,以前只知道需要把编码转换一下,原来还有一种简单的方法。

2 楼 天梯梦 2012-09-05  
是的,编码转换有时候不实际!
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 Article

Roblox: Bubble Gum Simulator Infinity - How To Get And Use Royal Keys
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Nordhold: Fusion System, Explained
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Mandragora: Whispers Of The Witch Tree - How To Unlock The Grappling Hook
3 weeks ago By 尊渡假赌尊渡假赌尊渡假赌

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)

Hot Topics

Java Tutorial
1666
14
PHP Tutorial
1273
29
C# Tutorial
1253
24
PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP in Action: Real-World Examples and Applications PHP in Action: Real-World Examples and Applications Apr 14, 2025 am 12:19 AM

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP vs. Python: Understanding the Differences PHP vs. Python: Understanding the Differences Apr 11, 2025 am 12:15 AM

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

The Enduring Relevance of PHP: Is It Still Alive? The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP and Python: Code Examples and Comparison PHP and Python: Code Examples and Comparison Apr 15, 2025 am 12:07 AM

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP vs. Other Languages: A Comparison PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python: Different Paradigms Explained PHP and Python: Different Paradigms Explained Apr 18, 2025 am 12:26 AM

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

See all articles