iconv Functions

iconv_get_encoding — Retrieve internal configuration variables of iconv extension
iconv_mime_decode_headers — Decodes multiple MIME header fields at once
iconv_mime_decode — Decodes a MIME header field
iconv_mime_encode — Composes a MIME header field
iconv_set_encoding — Set current setting for character encoding conversion
iconv_strlen — Returns the character count of string
iconv_strpos — Finds position of first occurrence of a needle within a haystack
iconv_strrpos — Finds the last occurrence of a needle within a haystack
iconv_substr — Cut out part of a string
iconv — Convert string to requested character encoding
ob_iconv_handler — Convert character encoding as output buffer handler

iconv_get_encoding

iconv

Last updated: Fri, 27 Jun 2008

add a note User Contributed Notes
iconv Functions

nospam at nihonbunka dot com
16-May-2008 05:40


iconv does not convert to sjis tildes unless you do something like this



<?PHP 

$string = 'where are the (~) (~) tildes?'; // This is what we start off with, you can put any string in here that contains problematic characters in utf8 format

echo ('this is what we start with = '.$string.'<BR />'); //print string at start

$conv_str = iconv('utf-8','shift-jis'.'//TRANSLIT',$string); 

echo ('this is not working = '.$conv_str.'<BR />'); //Just to show that this is not working.



$rstring = preg_replace ('/~/','1bytetilde',$string);   //replace before conversion

echo ('this is modified string here = '.$rstring.'<BR />'); //This is the modified string



$conv_str2 = iconv('utf-8','shift-jis'.'//TRANSLIT',$rstring); //convert modified string

$rereplace=chr(126); //$rereplace is now a one byte tilde in shift_jis

$rerstring = preg_replace ('/1bytetilde/',$rereplace,$conv_str2); //rereplace with tildes

echo ('this is the correct result = '.$rerstring.'<BR />'); //the correct result

?>

09-Apr-2007 11:43


Just a little fix for the utf8_to_windows1255 function above. The original function doesn't convert English characters well:



function utf8_to_windows1255($utf8) {

    $windows1255 = "";

    $chars = preg_split("//",$utf8);

    for ($i=1; $i<count($chars)-1; $i++) {

        $prefix = ord($chars[$i]);

        $suffix = ord($chars[$i+1]);

        //print ("<p>$prefix $suffix");

        if ($prefix==215) {

            $windows1255 .= chr($suffix+80);

            $i++;

        }

        elseif ($prefix==214) {

            $windows1255 .= chr($suffix+16);

            $i++;

        }

        else {

            $windows1255 .= $chars[$i];

        }

    }

    return $windows1255;

}

Erel Segal - Rent a Brain
25-Mar-2007 09:32


Note that my mysql_iconv will not translate correctly the Hebrew dotting symbols (Niqqud) - they will be converted into question marks.



Here is a straightforward (and not very efficient) solution:



function utf8_to_windows1255($utf8) {

    $windows1255 = "";

    $chars = preg_split("//",$utf8);

    for ($i=1; $i<count($chars)-1; $i+=2) {

        $prefix = ord($chars[$i]);

        $suffix = ord($chars[$i+1]);

        print ("<p>$prefix $suffix");

        if ($prefix==215)

            $windows1255 .= chr($suffix+80);

        elseif ($prefix==214)

            $windows1255 .= chr($suffix+16);

        else

            $windows1255 .= $chars[$i];

    }

    return $windows1255;

}

Fabian Ketchup
13-Sep-2006 03:00


// Simple file translation.



$FileToconvert = "menu.xml";

$FileConverted = "menu2.xml";



echo "Converting $FileToconvert ...";



file_put_contents($FileConverted, iconv("ISO-8859-1","UTF-8",file_get_contents($FileToconvert))); 



echo "File converted in $FileConverted";

nod at mobi dot kz
17-Jul-2006 04:17


If you need convert string from Windows-1251 to 866. Some characters of 1251 haven't representation on DOS 866. For example, long dash -- chr(150) will be converted to 0, after that iconv finish his work and other charactes  will be skiped. Problem characters range in win1251 (128-159,163,165-167,169,171-174,177-182,187-190).



Use this:



//$text  -  input text in windows-1251

//$cout  -  output text in 866 (cp866, dos ru ascii)



for($i=0;$i<strlen($text);$i++) {

    $ord=ord($text[$i]);

    if($ord>=192&&$ord<=239) $cout.=chr($ord-64);

    elseif($ord>=240&&$ord<=255) $cout.=chr($ord-16);

    elseif($ord==168) $cout.=chr(240);

    elseif($ord==184) $cout.=chr(241);

    elseif($ord==185) $cout.=chr(252);

    elseif($ord==150||$ord==151) $cout.=chr(45);

    elseif($ord==147||$ord==148||$ord==171||$ord==187) $cout.=chr(34);

    elseif($ord>=128&&$ord<=190) $i=$i; //нет представления данному символу

    else $cout.=chr($ord);

}

andrej009
16-Mar-2006 01:22


There's one more special german character: ß (sometimes displayed as Ϋ)



so: case 159: $out .= "ß";break;

08-Nov-2005 09:05


But this is a very slow method to convert this:



// function to change german umlauts into ue, oe, etc.

function cv_input($str){



Better try this:

$tr = array(chr(xyz) => '�', chr(160) => ' '); // Just a simple example, put all your characters in there

$string = strtr($string, $tr);

Christophe Lienert
27-Sep-2005 11:09


In addition to Godfather's note below, you may find this function useful just as well. 



// function to change german umlauts into ue, oe, etc. 

function cv_input($str){

      $out = "";

      for ($i = 0; $i<strlen($str);$i++){

           $ch= ord($str{$i});

           switch($ch){

                case 195: $out .= "";break;     

                case 164: $out .= "ae"; break; 

                case 188: $out .= "ue"; break; 

                case 182: $out .= "oe"; break; 

                case 132: $out .= "Ae"; break; 

                case 156: $out .= "Ue"; break; 

                case 150: $out .= "Oe"; break;

                default : $out .= chr($ch) ;

           }

      }

      return $out;

}

The Godfather
15-Dec-2004 02:36


With this function you can translate the german Symbols from the character set UTF-8 in windows-1252. 



function convert_text($str){

  $out = '';

  for ($i = 0; $i<strlen($str);$i++){

   $ch = ord($str{$i});

   switch($ch){

         case 252: $out .= chr(129);break; //u Umlaut

         case 220: $out .= chr(154);break;//U Umlaut 

         case 228: $out .= chr(132);break;//a Umlaut  

         case 196: $out .= chr(142);break;//A Umlaut 

         case 214: $out .= chr(153);break;//O Umlaut  

         case 246: $out .= chr(148);break;//o Umlaug 

         case 223: $out .= chr(225);break;//SZ 

         default : $out .= chr($ch) ;

   }

  }

  return $out;

}

tokiee at hotmail dot com
19-Aug-2004 10:40


iconv now has been built-in, at least in PHP >= 5.0.1 for win32. You don't have to modify php.ini for this. Actually you should not. And clearly, libiconv does not need to be installed.

thierry.bo
23-Dec-2003 11:26


Windows users.



Personaly I leaved all php dlls in \php\dlls\ directory, just adding this path to my system path, and iconv.dll supplied with php 4.3.2 works fine, also leaving supplied php_iconv.dll in my \php\extensions\ directory. This was working fine with Apache and Omnihttpd server I use.



As soon I installed IIS on the same server, php complained about not finding php_iconv.dll in the extensions directory. In fact PHP with IIS loads all extensions in my \php\extensions directory correctly, except php_iconv.dll. 

Although iconv.dll is in my system path, the only way to load php_iconv.dll was to copy iconv.dll file in \%winnt\system32 directory. With other servers, iconv.dll can be in anywhere in the system path.

14-Sep-2002 02:23


I'm not sure how recent version of

glibc 2.x Slackware 7.x/8.x comes with, but

it's very likely that it comes with glibc 2.2.x.

In that case, you don't have to bother at all to

install libiconv in /usr/local. iconv(3) in glibc 2.2.x

is very good (thanks to Ulrich Drepper and

Bruno Haible. the latter is the author of libiconv).

libiconv is very handy for those outdated/non-standard-compliant Unix 

and non-Unix systems that don't have 

sufficiently good iconv(3) in their C library.

elk at NOSPAMmodel-fx dot com
25-Jul-2002 05:39


To compile libiconv under Slackware 7.0 or 8.0 without errors (either with the apache module of PHP or the CGI version), you must specify the full path of the libiconv installation.



Exemple :



       --with-iconv=/usr/local

add a note

iconv_get_encoding

iconv

Last updated: Fri, 27 Jun 2008

iconv Functions

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