What to do if php iconv is Chinese garbled
php iconv Chinese garbled solution: first download the libiconv function library and install libiconv; then recompile php; finally add the parameter "//IGNORE" after the encoding that needs to be converted.
Recommended: "PHP Video Tutorial"
How to use the iconv function in php to solve Chinese garbled characters
The iconv function library can complete conversion between various character sets and is an indispensable basic function library in PHP programming.
1. Download the libiconv function library libiconv-1.x.tar.gz;
2. Unzip tar -zxvf libiconv-1.x.tar.gz;
3. Install libiconv
#configure --prefix=/usr/local/iconv #make #make install
4. Recompile php and add compilation parameters --with-iconv=/usr/local/iconv
under windows
The iconv function converts the captured utf-8 encoded page into gb2312. Only by using the iconv function to transcode the captured data, the data will be less for no reason.
This is a bug in the iconv function. iconv will make an error when converting the character "—" to gb2312. The solution is very simple, that is, add "//IGNORE" after the encoding that needs to be converted, which is the second parameter of the iconv function. As follows:
The following is the quoted content:
iconv("UTF-8","GB2312//IGNORE",$data)
ignore means to ignore errors during conversion. Without the ignore parameter, all strings following this character cannot be saved.
iconv is not the default function of php, and it is also a module installed by default. It needs to be installed before it can be used.
If it is windows2000 php, you can modify the php.ini file and remove the ";" before extension=php_iconv.dll. At the same time, you need to copy the iconv.dll under your original php installation file to your Under winnt/system32 (if your dll points to this directory)
In the Linux environment, use static installation and add an additional item --with-iconv when configure That's it, phpinfo can see the items of iconv.
Simple example of use:
$zip = new ZipArchive();//打开文件 如果文件已经存在则覆盖,如果没有则创建 if($zip->open($destination,$overwrite?ZIPARCHIVE::OVERWRITE : ZIPARCHIVE::CREATE)!==true){ return false; } //向压缩文件add the files foreach($valid_files as $file){ //$zip->addFile($file,$file); $file_info_arr= pathinfo($file); $filename =$file_info_arr['basename']; $filesss = iconv('UTF-8', 'GBK//IGNORE', $filename); $zip->addFile($file,$filesss); }
Introduction to mb_convert_encoding and iconv functions in PHP
mb_convert_encoding This function is used to convert encoding. I used to not understand the concept of program coding, but now I seem to understand a little bit.
However, English generally does not have encoding problems, only Chinese data will have this problem. For example, when you use Zend Studio or Editplus to write a program, you use gbk encoding. If the data needs to be entered into the database, and the database encoding is utf8, then the data must be encoded and converted, otherwise it will become garbled when entering the database. .
See the official usage of mb_convert_encoding:
http://cn.php.net/manual/zh/function.mb-convert-encoding.php
But you have to use The above function needs to be installed but the mbstring extension library needs to be enabled first.
Another function iconv in PHP is also used to convert string encoding, and has similar functions to the above function.
There are some detailed examples below:
iconv — Convert string to requested character encoding
(PHP 4 >= 4.0.5, PHP 5)
mb_convert_encoding — Convert character encoding
(PHP 4 >= 4.0.6, PHP 5)
Usage:
string mb_convert_encoding ( string str, string to_encoding [ , mixed from_encoding] )
You need to enable the mbstring extension library first. In php.ini, remove the ; in front of extension=php_mbstring.dll
mb_convert_encoding can specify multiple input encodings, and it will Automatically identify based on content, but the execution efficiency is much worse than iconv;
string iconv (string in_charset, string out_charset, string str)
Note: The second parameter can be used to specify the conversion In addition to the encoding, you can also add two suffixes: //TRANSLIT and //IGNORE. //TRANSLIT will automatically convert characters that cannot be converted directly into one or more approximate characters. //IGNORE will ignore characters that cannot be converted. characters, and the default effect is to truncate from the first illegal character.
Returns the converted string or FALSE on failure.
Usage: It is found that iconv will make an error when converting the character "-" to gb2312. If there is no ignore parameter, all strings following this character will be Cannot be saved. No matter what, this "—" cannot be converted successfully and cannot be output. In addition, mb_convert_encoding does not have this bug.
Generally use iconv. Only use the mb_convert_encoding function when you are unable to determine what the original encoding is, or when iconv cannot be displayed normally after conversion.
Small pitfalls in using mb_convert_encoding transcoding in PHP:
Everyone is familiar with using the mb_convert_encoding() method to convert character encodings in PHP programs, and it is also used in large quantities. And in general, this method performs well enough and deserves praise. But in a project we needed to use it to convert UTF8 to GBK, and found a minor problem when converting some special characters. The specific manifestation is that mb converts characters that can be encoded in utf8 but cannot be encoded in gbk into \0x00\0x80, which causes problems with the converted gbk characters.
In our minds, during the character encoding conversion process, if we encounter characters that cannot be represented by the target encoding, what the transcoding program should do is discard such characters. In this way, although some data is lost, it will not The character sequence that caused transcoding is unavailable. It's not clear why mb should use the above method instead of discarding it.
The temporary solution is to filter the transcoded string sequence and filter out all \x00\80 characters; or filter the utf8 string before escaping and filter out ut8. Represents all characters that cannot be represented by gbk. In terms of implementation difficulty, the first filtering method is relatively easy to implement.
The above is the detailed content of What to do if php iconv is Chinese garbled. For more information, please follow other related articles on the PHP Chinese website!

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

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

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

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

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

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.
