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mb_internal_encoding

(PHP 4 >= 4.0.6, PHP 5)

mb_internal_encodingLit/modifie l'encodage interne

Description

mixed mb_internal_encoding ([ string $encoding = mb_internal_encoding() ] )

Lit/modifie l'encodage interne.

Liste de paramètres

encoding

encoding sert lors des conversions des chaînes en provenance et en direction du web, ainsi que lors de la création de chaînes avec le module mbstring. Vous devez garder à l'esprit que l'encodage interne est totalement différent de celui pour les regex multi-octets.

Valeurs de retour

Si encoding est fourni, Cette fonction retourne TRUE en cas de succès ou FALSE si une erreur survient. Dans ce cas, l'encodage des caractères pour les regex multi-octets n'est pas changé. Si encoding est omis, mb_internal_encoding() retourne le nom de l'encodage courant.

Exemples

Exemple #1 Exemple avec mb_internal_encoding()

<?php
/* Utilise l'encodage interne UTF-8 */
mb_internal_encoding("UTF-8");

/* Affiche l'encodage interne courant */
echo mb_internal_encoding();
?>

Voir aussi

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User Contributed Notes 5 notes

up
3
mortoray at ecircle-ag dot com
9 years ago
Be aware that the strings in your source files must match the encoding you specify by mb_internal_encoding.  It appears the Parser loads raw bytes from the file and refers to its internal encoding to determine their actual encoding.

To demonstrate, the following outputs as espected when the /source/ file is Latin-1 encoded:

<?php
    mb_internal_encoding
("iso-8859-1");
   
mb_http_output( "UTF-8" );
   
ob_start("mb_output_handler");

    echo
"<br/>";

   
?>

Now, a typical use of mb_internal_encoding is shown as follows.  Make the change to "utf-8" but leave the /source/ file encoding unchanged:

<?php
    mb_internal_encoding
("UTF-8");
   
mb_http_output( "UTF-8" );
   
ob_start("mb_output_handler");

    echo
"<br/>";

   
?>

The output will just show the <br/> tag and no text.

Save the file as UTF-8 encoding and then the results will be as expected.
up
1
mdirks at gulfstreamcoach dot com
7 years ago
In response to mortoray at ecircle-ag dot com:

The characters display fine as long as you set the Encoding to something more "Latin 1" compatible (i.e. US-ACSII, ISO-8859-1, ISO-8859-1, or  Windows 1252). PHP.net auto-detects to UTF-8
up
0
john leborgne
2 years ago
i noticed that setting mb_internal_encoding('UTF-8') in my global site config.inc.php, doesn't work in my classes : it reverse back to ISO-8859-1.
Adding the call to the constructor of my top site class resolve this.
up
0
Joachim Kruyswijk
8 years ago
Especially when writing PHP scripts for use on different servers, it is a very good idea to explicitly set the internal encoding somewhere on top of every document served, e.g.

mb_internal_encoding("UTF-8");

This, in combination with mysql-statement "SET NAMES 'utf8'", will save a lot of debugging trouble.

Also, use the multi-byte string functions instead of the ones you may be used to, e.g. mb_strlen() instead of strlen(), etc.
up
0
mortoray at ecircle-ag dot com
9 years ago
To previous example, the PHP notes don't appear to support umlauted characters so there are question marks  (?) there instead of what should be umlauated oue.  Just substitute any high-order/accented character to see the effect.
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