


How CodeIgniter solves the problem that URLs contain Chinese strings, codeigniterurl_PHP tutorial
CodeIgniter How to solve the problem that the URL contains Chinese strings, codeigniterurl
The default configuration of codeIgniter does not allow the URL to contain non-ASCII characters. If the URL contains non-ASCII characters, then CI will throw errors unceremoniously. This article introduces coders to how CodeIgniter solves the problem of URLs containing Chinese strings.
You may say, what if I use the function urlencode on this URL? no. Because the Web Server will automatically decode a urlencoded URL after receiving it, and then convert the strings obtained in PHP into the meaning it originally represents, and use the Web Server's own URL encoding character set (IIS6 Chinese version is GBK, Apache 2.2 is UTF-8) is transmitted to the application, which makes the URL obtained by CI already decoded. Regardless of whether you have urlencoded the URL, the browser will automatically detect it when making a request. If not , the encoding will be performed automatically. Therefore, manually urlencoding does not solve the problem. So what should we do to solve this problem?
For a framework like CI, my point of view is to try not to modify it, but to extend it. CI provides a good extension mechanism. We only need to install it under application/core/ (version 2.0 The previous one was application/libraries/) and added a file MY_URI.php with the content:
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); class MY_URI extends CI_URI { /** * 自定义的url过滤函数 * * @access private * @param string * @return string */ function _filter_uri($str) { if ($str != '' AND $this->config->item('permitted_uri_chars') != '') { $str = urlencode($str); if ( ! preg_match("|^[".preg_quote($this->config->item('permitted_uri_chars'))."]+$|i", $str)) { exit('The URI you submitted has disallowed characters.'); } $str = urldecode($str); } return $str; } }
I overwrote the _filter_uri method in the original CI_URI, so that the Chinese URL can pass the detection. However, if there are spaces in the URL, it won't work. What should I do? It turns out that urlencode will convert spaces into , and the default configuration of CI does not allow it to appear in the URL. OK, put
$config ['permitted_uri_chars'] = 'a-z 0-9~%.:_\-';
changed to
$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\+\-';
That’s it.
or
The first step is to change the
in config.php$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-';Replace
with
$config['permitted_uri_chars'] ='a-z 0-9~%.:_-u4e00-u9fa5';
We have completed all the above operations, but you may encounter a new problem next, that is, the Chinese information obtained in the URL is garbled. I don’t know if you will encounter this problem on your server. But I encountered (IIS). But it is normal locally, and apache is used locally.
Okay, I printed out $_SERVER['REQUEST_URI'] in the program and found that it was garbled. I was thinking hard, what is going on? This means that before I get the parameters in the uri, they have been encoded. Well, we use iconv to decode:
iconv("gb2312","UTF-8",$uri);
Now print it out and see. Okay, the original Chinese parameters are printed out and they are correct.
This problem is solved, but there is still a question, why is the url encoded in gb2312? If it is used in my program (I use utf-8 encoding), it also needs to be converted to utf-8 encoding, yes It's not related to the web server. I hope you can help answer it.
Original address: http://www.manongjc.com/article/808.html
codeIgniter related reading:

What’s still popular is the ease of use, flexibility and a strong ecosystem. 1) Ease of use and simple syntax make it the first choice for beginners. 2) Closely integrated with web development, excellent interaction with HTTP requests and database. 3) The huge ecosystem provides a wealth of tools and libraries. 4) Active community and open source nature adapts them to new needs and technology trends.

PHP and Python are both high-level programming languages that are widely used in web development, data processing and automation tasks. 1.PHP is often used to build dynamic websites and content management systems, while Python is often used to build web frameworks and data science. 2.PHP uses echo to output content, Python uses print. 3. Both support object-oriented programming, but the syntax and keywords are different. 4. PHP supports weak type conversion, while Python is more stringent. 5. PHP performance optimization includes using OPcache and asynchronous programming, while Python uses cProfile and asynchronous programming.

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.

PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.

PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.

PHP remains important in the modernization process because it supports a large number of websites and applications and adapts to development needs through frameworks. 1.PHP7 improves performance and introduces new features. 2. Modern frameworks such as Laravel, Symfony and CodeIgniter simplify development and improve code quality. 3. Performance optimization and best practices further improve application efficiency.

PHPhassignificantlyimpactedwebdevelopmentandextendsbeyondit.1)ItpowersmajorplatformslikeWordPressandexcelsindatabaseinteractions.2)PHP'sadaptabilityallowsittoscaleforlargeapplicationsusingframeworkslikeLaravel.3)Beyondweb,PHPisusedincommand-linescrip

PHP type prompts to improve code quality and readability. 1) Scalar type tips: Since PHP7.0, basic data types are allowed to be specified in function parameters, such as int, float, etc. 2) Return type prompt: Ensure the consistency of the function return value type. 3) Union type prompt: Since PHP8.0, multiple types are allowed to be specified in function parameters or return values. 4) Nullable type prompt: Allows to include null values and handle functions that may return null values.


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

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

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SublimeText3 Chinese version
Chinese version, very easy to use