mb_preferred_mime_name
To change algo the regex_encodign
<?php
echo "current mb_internal_encoding: ".mb_internal_encoding()."<br />";
echo "changing mb_internal_encoding to UTF-8<br />";
mb_internal_encoding("UTF-8");
echo "new mb_internal_encoding: ".mb_internal_encoding()."<br />";
echo "current mb_regex_encoding: ".mb_regex_encoding()."<br />";
echo "changing mb_regex_encoding to UTF-8<br />";
mb_regex_encoding('UTF-8');
echo "new mb_regex_encoding: ".mb_regex_encoding()."<br />";
?>
mb_regex_encoding
(PHP 4 >= 4.2.0, PHP 5)
mb_regex_encoding — Returns current encoding for multibyte regex as string
Description
Returns the current encoding for a multibyte regex as a string.
Parameters
- encoding
-
The encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used.
Return Values
Returns the character encoding used by multibyte regex functions.
See Also
- mb_internal_encoding() - Set/Get internal character encoding
- mb_ereg() - Regular expression match with multibyte support
add a note
User Contributed Notesmb_regex_encoding
Anonymous
28-Jun-2009 02:07
28-Jun-2009 02:07
zl at zl dot hu
29-May-2009 10:05
29-May-2009 10:05
Return values vary in setting and getting:
<?php
echo mb_regex_encoding();
// returns encoding name as a string
?>
<?php
echo mb_regex_encoding("UTF-8");
// returns true (success) of false as a boolean
?>
/me
02-Feb-2008 11:30
02-Feb-2008 11:30
Note, that the regex encoding is only set to the initial internal character encoding. If you change the internal encoding in your script with mb_internal_encoding() the regex encoding does not change. For example:
<?php
echo "current mb_internal_encoding: ".mb_internal_encoding()."<br />";
echo "current mb_regex_encoding: ".mb_regex_encoding()."<br />";
echo "changing mb_internal_encoding to UTF-8<br />";
mb_internal_encoding("UTF-8");
echo "new mb_internal_encoding: ".mb_internal_encoding()."<br />";
echo "new mb_regex_encoding: ".mb_regex_encoding()."<br />";
?>
This code might output (depending on your initial internal character encoding):
current mb_internal_encoding: ISO-8859-1
current mb_regex_encoding: ISO-8859-1
changing mb_internal_encoding to UTF-8
new mb_internal_encoding: UTF-8
new mb_regex_encoding: ISO-8859-1
Furthermore the sentence "The default value is the internal character encoding." in the documentation might be misleading because the initial default value of the regex encoding is meant, and not the default value for the optional encoding parameter.