PHP array_key_exists和UTF 8 [英] PHP array_key_exists and UTF 8

问题描述

我有一个数据库，其中编码是UTF-8，用于多语言目的。
这样我的应用程序中的所有内容都是UTF-8。

尽管我对array_key_exists函数有问题。

1. 它以对数据库的查询开始

SELECT name，from TABLE

1. 然后我填写一个哈希图，结果如下：

$ hashmap [$ row ['name']] = $ row ['value']

但是当DB中的名称包含é等重音符时，以下内容返回false：

  $这 - > DB->选择（ '姓名'）; 
 $ this-> db-> select（'value'）; 
 $ this-> db-> from（'table'）; 
 $ q = $ this-> db-> get（）; 
 $ res = $ q-> result_array（）; 
 
 foreach（$ res as $ value）{
 $ hashmap [$ value ['name']] = $ value ['value']; 
} 
 
 $ key ='nameé'; //这里的ord返回233 
 array_key_exists（$ key，$ hashmap）
  

我不知道如何进一步，你是否遇到这个问题？

我有一个表现要求。

感谢您的帮助。

解决方案

数组键以UTF-8编码，如果它确实来自UTF-8字符串数据库。显然，您的源代码文件不是用UTF-8编码的，我猜这是在Latin-1编码的。因此UTF-8字节序列与拉丁字节序列之间的比较不成功。以UTF-8保存源代码文件，并且它应该工作（请咨询您的文本编辑器）。

I have a database where encoding is UTF-8 for multilingual purpose. I this that everything in my app is in UTF-8.

Though I have a problem with the array_key_exists function.

1. It starts by a query to the database

SELECT name, value from TABLE

1. Then I fill a hash map with the result :

$hashmap[ $row['name'] ] = $row['value']

But when the name in the DB contains accents like 'é', the following returns false :

$this->db->select('name');
$this->db->select('value');
$this->db->from('table');
$q = $this->db->get();
$res = $q->result_array();

    foreach ($res as $value) {
        $hashmap[$value['name']] = $value['value'];
    }

$key = 'name é'; // an ord here returns 233
array_key_exists($key, $hashmap) 

I dont know how to go further with that, did you encountered the problem ?

I have a performance requirement.

Thanks for your help.

解决方案

The array key is encoded in UTF-8 if it indeed comes as UTF-8 string from the database. Apparently your source code file is not encoded in UTF-8, I'd guess it's encoded in Latin-1. A comparison between a UTF-8 byte sequence and a Latin-1 byte sequence is therefore unsuccessful. Save you source code files in UTF-8 and it should work (consult your text editor).

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