note 61648 added to function.split
| From: | RE:gcerretiniattechnicadotnet/UTF8 at osu1 dot php dot net | Date: | Wed, 08 Feb 2006 12:26:10 +0000 |
| Subject: | note 61648 added to function.split | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-103305@lists.php.net to get a copy of this message | ||
Original problem:
=================
I've try using split function.
<?php
$ferro="2�12";
$valore=split("[�]",$ferro);
echo $ferro."<br>";
echo "p1-".$valore[0]."<br>";
echo "p2-".$valore[1]."<br>";
echo "p3-".$valore[2]."<br>";
$ferro="2d12";
$valore=split("[d]",$ferro);
echo $ferro."<br>";
echo "p1-".$valore[0]."<br>";
echo "p2-".$valore[1]."<br>";
echo "p3-".$valore[2]."<br>";
?>
This return:
============
2�12
p1-2
p2-
p3-12
2d12
p1-2
p2-12
p3-
I use charset UTF-8. When I use char � the split function ad an empty string between
"2" and "12"... Why?
Explanation:
============
UTF-8 charset codes some characters (like the "�" character) into two bytes. In
fact the regular expresion "[�]" contains 4 bytes (4 non-unicode characters).
To demonstrate the real situation I wrote following example:
$ferro="2de12";
$valore=split("[de]",$ferro);
echo $ferro."<br>";
echo "p1-".$valore[0]."<br>";
echo "p2-".$valore[1]."<br>";
echo "p3-".$valore[2]."<br>";
This returns:
=============
2d12
p1-2
p2-
p3-12
----
Server IP: 62.65.181.66
Probable Submitter: 193.87.54.140
----
Manual Page -- http://www.php.net/manual/en/function.split.php
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