Very strange behaviour with UTF-8 [duplicate]

2019-02-26 03:10发布

站内问答 / PHP
1289 1 5

This question already has an answer here:

How can I echo a sql text field into a paragraph?

My code does puts the text in but changes the accents like á to this -> �. I tried adding UTF-8 in the header and removing it.

Removing UTF-A makes the sql content is ok but all the content outside the paragraph messes up.

I checked the DB was using (UTF-8-unicode), The files were saved with UTF-8

Any ideas on what might be wrong?

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<textarea class="texto" name="textoarticulo"  id="textoarticulo" form="formarticulo" placeholder="Texto del art&iacute;culo...">
 <?
    echo $row['txt4'];

 ?>
</textarea>

1条回答
等我变得足够好
2楼-- · 2019-02-26 03:32

It's important that your entire code has the same charset to avoid issues where characters displays incorrectly.

Here's a little list of things that has to be set to a specific charset.

Headers

  • Setting the charset in both HTML and PHP headers to UTF-8

    • PHP (PHP headers has to be placed before any output: PHP echo, whitespace, HTML!):

      header('Content-Type: text/html; charset=utf-8');

    • HTML (HTML-headers are placed within the <head> / </head> tag): 

      <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

Connection

  • You also need to specify the charset in the connection itself.

    • PDO (specified in the object itself): 

      $handler = new PDO('mysql:host=localhost;dbname=database;charset=utf8', 'username', 'password');

    • MySQLi: (placed directly after creating the connection, $mysqli is the connection object) 

      $mysqli->set_charset("utf8"); // OOP style
mysqli_set_charset($mysqli, "utf8"); // procedural style

    • MySQL (depricated): (placed directly after creating the connection) 

      mysql_set_charset("utf8");

Database

  • Your database and its tables has to be set to UTF-8. Note that charset is not the same as collation.

    You can do that by running the queries below once for each database and tables (for example in phpMyAdmin)

    ALTER DATABASE databasename CHARACTER SET utf8 COLLATE utf8_unicode_ci;
ALTER TABLE tablename CONVERT TO CHARACTER SET utf8 COLLATE utf8_unicode_ci;

    Caution... There are various different situations that need different ALTERs. Details Here . Doing the wrong ALTER is likely to make things worse. -- Rick James

php.ini specification

  • In your php.ini file, you should specify the default charset for your platform, like this 

    default_charset = "utf-8";

    (This is in essence the same as doing header('Content-Type: text/html; charset=utf-8'); on all pages)

File-encoding

  • It's also important that the .php file itself is UTF-8 encoded. If you're using Notepad++ to write your code, this can be done in the "Format" drop-down on the taskbar. You should use UTF-8 w/o BOM.

Should you follow all of the pointers above, chances are your problem will be solved. If not, you can take a look at this StackOverflow post: UTF-8 all the way through.

查看更多
0人赞 添加讨论(0) 举报
登录 后发表回答
相关问题
查看全部
相关文章
查看全部
收藏的人(5)