#20221 [Com]: str_replace

heinz at hhombergs dot de Thu, 19 Jun 2003 14:28:50 -0700

 ID:               20221
 Comment by:       heinz at hhombergs dot de
 Reported By:      panacode at skynet dot be
 Status:           Bogus
 Bug Type:         Strings related
 Operating System: Linux
 PHP Version:      4.2.3
 New Comment:


Sorry but there is a bug in the str_replace function. Reproduced under
4.2.2 and 4.3.2

function recode_charset($string,$cs_from,$cs_to) {
  $trans_tbl["ASCII"] = array("&", "�", "�", "�", "�", "�", "�", "�",
"�", "�", "�", "�", "�", "", "�", "�", "�", "�", "�", "�", "�", "�",
"�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�",
"�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�",
"�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�",
"�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�",
"�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�", "�",
"�", "�", "�", "�");

  $trans_tbl["UNICODE"] = array("&#x26;", "&#161;", "&#162;", "&#163;",
"&#164;", "&#165;", "&#166;", "&#167;", "&#168;", "&#169;", "&#170;",
"&#171;", "&#172;", "&#173;", "&#174;", "&#175;", "&#176;", "&#177;",
"&#178;", "&#179;", "&#180;", "&#181;", "&#182;", "&#183;", "&#184;",
"&#185;", "&#186;", "&#187;", "&#188;", "&#189;", "&#190;", "&#191;",
"&#192;", "&#193;", "&#194;", "&#195;", "&#196;", "&#197;", "&#198;",
"&#199;", "&#200;", "&#201;", "&#202;", "&#203;", "&#204;", "&#205;",
"&#206;", "&#207;", "&#208;", "&#209;", "&#210;", "&#211;", "&#212;",
"&#213;", "&#214;", "&#215;", "&#216;", "&#217;", "&#218;", "&#219;",
"&#220;", "&#221;", "&#222;", "&#223;", "&#224;", "&#225;", "&#226;",
"&#227;", "&#228;", "&#229;", "&#230;", "&#231;", "&#232;", "&#233;",
"&#234;", "&#235;", "&#236;", "&#237;", "&#238;", "&#239;", "&#240;",
"&#241;", "&#242;", "&#243;", "&#244;", "&#245;", "&#246;", "&#247;",
"&#248;", "&#249;", "&#250;", "&#251;", "&#252;", "&#253;", "&#254;",
"&#255;");

  $trans_tbl["HTML"] = array("&amp;", "&iexcl;", "&cent;", "&pound;",
"&curren;", "&yen;", "&brvbar;", "&sect;", "&uml;", "&copy;", "&ordf;",
"&laquo;", "&not;", "&shy;", "&reg;", "&macr;", "&deg;", "&plusmn;",
"&sup2;", "&sup3;", "&acute;", "&micro;", "&para;", "&middot;",
"&cedil;", "&sup1;", "&ordm;", "&raquo;", "&frac14;", "&frac12;",
"&frac34;", "&iquest;", "&Agrave;", "&Aacute;", "&Acirc;", "&Atilde;",
"&Auml;", "&Aring;", "&AElig;", "&Ccedil;", "&Egrave;", "&Eacute;",
"&Ecirc;", "&Euml;", "&Igrave;", "&Iacute;", "&Icirc;", "&Iuml;",
"&ETH;", "&Ntilde;", "&Ograve;", "&Oacute;", "&Ocirc;", "&Otilde;",
"&Ouml;", "&times;", "&Oslash;", "&Ugrave;", "&Uacute;", "&Ucirc;",
"&Uuml;", "&Yacute;", "&THORN;", "&szlig;", "&agrave;", "&aacute;",
"&acirc;", "&atilde;", "&auml;", "&aring;", "&aelig;", "&ccedil;",
"&egrave;", "&eacute;", "&ecirc;", "&euml;", "&igrave;", "&iacute;",
"&icirc;", "&iuml;", "&eth;", "&ntilde;", "&ograve;", "&oacute;",
"&ocirc;", "&otilde;", "&ouml;", "&divide;", "&oslash;", "&ugrave;",
"&uacute;", "&ucirc;", "&uuml;", "&yacute;", "&thorn;", "&yuml;");

  return str_replace($trans_tbl[$cs_from],  $trans_tbl[$cs_to], 
$string);
}

$string = recode_charset('�������','ASCII','HTML');

will produce &Atilde;&atilde;&Ucirc;&ucirc;&Otilde;&otilde;&THORN;

but &Auml;&auml;&Uuml;&uuml;&Ouml;&ouml;&szlig; is correct.


Previous Comments:
------------------------------------------------------------------------

[2002-11-02 17:46:51] [EMAIL PROTECTED]

Sorry, but your problem does not imply a bug in PHP itself.  For a
list of more appropriate places to ask for help using PHP, please
visit http://www.php.net/support.php as this bug system is not the
appropriate forum for asking support questions. 

Thank you for your interest in PHP.



------------------------------------------------------------------------

[2002-11-02 17:43:08] panacode at skynet dot be

Sorry for bothering (and for my writing errors).

There actually is another function in PHP that has the
behaviour that I expect: strtr(str, arr)

$vReplace['@gill'] = '@doubleyou';
$vReplace['@doubleyou'] = '@bates';

$sSubject = "@gill @doubleyou is not my friend";
$sResult = strtr($sSubject, $vReplace);

echo $sResult; 
// will output "@doubleyou @bates is not my friend"

------------------------------------------------------------------------

[2002-11-02 14:22:23] [EMAIL PROTECTED]

Please try using this CVS snapshot:

  http://snaps.php.net/php4-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php4-win32-latest.zip



------------------------------------------------------------------------

[2002-11-02 13:04:24] panacode at skynet dot be

str_replace when used with with arrays,
for every element in the search/replace arrays
a simple replace in the source string (rather than
using an external string) is performed.

This causes an unexpected result like
if one of the replace values includes
a search value it will be replaced in a subsequent
replacing action.

If this is a feature rather than a bug (which I doubt)
please state it in the documentation.

An example:

$vSearch[] = '@gill';
$vSearch[] = '@doubleyou';

$vReplace[] = '@doubleyou';
$vReplace[] = '@bates';

$sSubject = "@gill is my friend";
$sResult = str_replace($vSearch, $vReplace, $sSubject);

echo $sResult; 
// will output "@bates is not my friend" instead
// of "@doubleyou is not my friend"



Best regards,
Eugen Fernea
IT Manager
Panacode Software
rue de la Station, 1/1
7090 Braine-Le-Comte
Belgium
E-mail: [EMAIL PROTECTED]
Phone: +32 067/48 58 94
Mobile: +32 (0)472 95 15 48
Web: http://www.panacode.com

------------------------------------------------------------------------


-- 
Edit this bug report at http://bugs.php.net/?id=20221&edit=1

#20221 [Com]: str_replace

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