PHP: iconv - Manual

iconv

sire at acc dot umu dot se
14-Dec-2005 01:17


If you get this error message: "Notice: iconv(): Detected an illegal character in input string in file.php on line x", and your text or database is likely to contain text copied from Microsoft Word documents, it's very likely that the error is because of the evil 0x96 "long dash" character. MS Word as default converts all double hyphens into this illegal character. The solution is either to convert 0x96 (dash) into the regular 0x2d (hyphen/minus), or to append the //TRANSLIT or //IGNORE parameters (se above).

nilcolor at gmail dot coom
24-Nov-2005 03:29


Didn't know its a feature or not but its works for me (PHP 5.0.4)



iconv('', 'UTF-8', $str)



test it to convert from windows-1251 (stored in DB) to UTF-8 (which i use for web pages).

BTW i convert each array i fetch from DB with array_walk_recursive...

anyean at gmail dot com
30-May-2005 03:23


<?php

//script from http://zizi.kxup.com/

//javascript unesape

function unescape($str) {

  $str = rawurldecode($str);

  preg_match_all("/(?:%u.{4})|&#x.{4};|&#\d+;|.+/U",$str,$r);

  $ar = $r[0];

print_r($ar);

  foreach($ar as $k=>$v) {

    if(substr($v,0,2) == "%u")

      $ar[$k] = iconv("UCS-2","UTF-8",pack("H4",substr($v,-4)));

    elseif(substr($v,0,3) == "&#x")

      $ar[$k] = iconv("UCS-2","UTF-8",pack("H4",substr($v,3,-1)));

    elseif(substr($v,0,2) == "&#") {

echo substr($v,2,-1)."<br>";

      $ar[$k] = iconv("UCS-2","UTF-8",pack("n",substr($v,2,-1)));

    }

  }

  return join("",$ar);

}

?>

zhawari at hotmail dot com
01-Feb-2005 03:27


Here is how to convert UTF-8 numbers to UCS-2 numbers in hex:



<?php

 

function utf8toucs2($str)

{

       for ($i=0;$i<strlen($str);$i+=2)

       {

                $substring1 = $str[$i].$str[$i+1];  

                $substring2 = $str[$i+2].$str[$i+3]; 

               

                if (hexdec($substring1) < 127)

                        $results = "00".$str[$i].$str[$i+1];

                else

                {

                        $results = dechex((hexdec($substring1)-192)*64 + (hexdec($substring2)-128));

                        if ($results < 1000) $results = "0".$results; 

                        $i+=2;

                }

                $ucs2 .= $results;

        }

        return $ucs2;

}

 

echo strtoupper(utf8toucs2("D985D8B1D8AD"))."\n";

echo strtoupper(utf8toucs2("456725"))."\n";

 

?>



Input:

D985D8B1D8AD

Output:

06450631062D



Input:

456725

Output:

004500670025

PHANTOm <phantom at nix dot co dot il>
27-Jan-2005 12:49


convert windows-1255 to utf-8 with the following code

<?php

$heb = 'put hebrew text here';

$utf = preg_replace("/([\xE0-\xFA])/e","chr(215).chr(ord(\${1})-80)",$heb);

?>

zhawari at hotmail dot com
18-Jan-2005 03:02


Here is how to convert UCS-2 numbers to UTF-8 numbers in hex:



function ucs2toutf8($str)

{

        for ($i=0;$i<strlen($str);$i+=4)

        {

                $substring1 = $str[$i].$str[$i+1];

                $substring2 = $str[$i+2].$str[$i+3];

 

                if ($substring1 == "00")

                {

                        $byte1 = "";

                        $byte2 = $substring2;

                }

                else

                {

                        $substring = $substring1.$substring2;

                        $byte1 = dechex(192+(hexdec($substring)/64));

                        $byte2 = dechex(128+(hexdec($substring)%64));

                }

                $utf8 .= $byte1.$byte2;

        }

        return $utf8;

}

 

echo strtoupper(ucs2toutf8("06450631062D0020"));



?>



Input:

06450631062D

Output:

D985D8B1D8AD



regards,

Ziyad

bh
04-Jan-2005 12:10


Great class to convert between charsets: http://mikolajj.republika.pl/

SiMM
10-Dec-2004 11:15


<? // it's only example

function CP1251toUTF8($string){

  $out = '';

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

    $ch = ord($string{$i});

    if ($ch < 0x80) $out .= chr($ch);

    else

      if ($ch >= 0xC0)

        if ($ch < 0xF0)

             $out .= "\xD0".chr(0x90 + $ch - 0xC0); // &#1040;-&#1071;, &#1072;-&#1087; (A-YA, a-p)

        else $out .= "\xD1".chr(0x80 + $ch - 0xF0); // &#1088;-&#1103; (r-ya)

      else

        switch($ch){

          case 0xA8: $out .= "\xD0\x81"; break; // YO

          case 0xB8: $out .= "\xD1\x91"; break; // yo

          // ukrainian

          case 0xA1: $out .= "\xD0\x8E"; break; // &#1038; (U)

          case 0xA2: $out .= "\xD1\x9E"; break; // &#1118; (u)

          case 0xAA: $out .= "\xD0\x84"; break; // &#1028; (e)

          case 0xAF: $out .= "\xD0\x87"; break; // &#1031; (I..)

          case 0xB2: $out .= "\xD0\x86"; break; // I (I)

          case 0xB3: $out .= "\xD1\x96"; break; // i (i)

          case 0xBA: $out .= "\xD1\x94"; break; // &#1108; (e)

          case 0xBF: $out .= "\xD1\x97"; break; // &#1111; (i..)

          // chuvashian

          case 0x8C: $out .= "\xD3\x90"; break; // &#1232; (A)

          case 0x8D: $out .= "\xD3\x96"; break; // &#1238; (E)

          case 0x8E: $out .= "\xD2\xAA"; break; // &#1194; (SCH)

          case 0x8F: $out .= "\xD3\xB2"; break; // &#1266; (U)

          case 0x9C: $out .= "\xD3\x91"; break; // &#1233; (a)

          case 0x9D: $out .= "\xD3\x97"; break; // &#1239; (e)

          case 0x9E: $out .= "\xD2\xAB"; break; // &#1195; (sch)

          case 0x9F: $out .= "\xD3\xB3"; break; // &#1267; (u)

        }

  }

  return $out;

}

?>

aissam at yahoo dot com
29-Nov-2004 08:20


For those who have troubles in displaying UCS-2 data on browser, here's a simple function that convert ucs2 to html unicode entities :



<?php



 function ucs2html($str) {

    $str=trim($str); // if you are reading from file

    $len=strlen($str);

    $html='';

    for($i=0;$i<$len;$i+=2)

        $html.='&#'.hexdec(dechex(ord($str[$i+1])).

                   sprintf("%02s",dechex(ord($str[$i])))).';';

    return($html);

 }

?>

nikolai-dot-zujev-at-gmail-dot-com
18-Nov-2004 01:14


Here is an example how to convert windows-1251 (windows) or cp1251(Linux/Unix) encoded string to UTF-8 encoding.



<?php

function cp1251_utf8( $sInput )

{

    $sOutput = "";



    for ( $i = 0; $i < strlen( $sInput ); $i++ )

    {

        $iAscii = ord( $sInput[$i] );



        if ( $iAscii >= 192 && $iAscii <= 255 )

            $sOutput .=  "&#".( 1040 + ( $iAscii - 192 ) ).";";

        else if ( $iAscii == 168 )

            $sOutput .= "&#".( 1025 ).";";

        else if ( $iAscii == 184 )

            $sOutput .= "&#".( 1105 ).";";

        else

            $sOutput .= $sInput[$i];

    }

    

    return $sOutput;

}

?>

vitek at 4rome dot ru
15-Nov-2004 11:53


On some systems there may be no such function as iconv(); this is due to the following reason: a constant is defined named `iconv` with the value `libiconv`. So, the string PHP_FUNCTION(iconv) transforms to PHP_FUNCTION(libiconv), and you have to call libiconv() function instead of iconv().

I had seen this on FreeBSD, but I am sure that was a rather special build.

If you'd want not to be dependent on this behaviour, add the following to your script:

<?php

if (!function_exists('iconv') && function_exists('libiconv')) {

    function iconv($input_encoding, $output_encoding, $string) {

        return libiconv($input_encoding, $output_encoding, $string);

    }

}

?>

Thanks to tony2001 at phpclub.net for explaining this behaviour.

ng4rrjanbiah at rediffmail dot com
22-Jun-2004 08:10


Here is a code to convert ISO 8859-1 to UTF-8 and vice versa without using iconv.



<?php

//Logic from http://twiki.org/cgi-bin/view/Codev/InternationalisationUTF8

$str_iso8859_1 = 'foo in ISO 8859-1';

//ISO 8859-1 to UTF-8

$str_utf8 = preg_replace("/([\x80-\xFF])/e", 

            "chr(0xC0|ord('\\1')>>6).chr(0x80|ord('\\1')&0x3F)",

             $str_iso8859_1);

//UTF-8 to ISO 8859-1

$str_iso8859_1 = preg_replace("/([\xC2\xC3])([\x80-\xBF])/e", 

                "chr(ord('\\1')<<6&0xC0|ord('\\2')&0x3F)",

                 $str_utf8);

?>



HTH,

R. Rajesh Jeba Anbiah

Igu4n4 at example dot com
05-Jul-2003 09:03


Maybe I was a fool in placing the charset definition string as ISO8859-1 instead of ISO-8859-1 (note the - after ISO) but it worked in PHP 4.3. When I ported the system back to 4.2.2 iconv gave back an empty string without error messages. So beware in PHP 4.2.2 use allways the ISO-88....  charset definition.

iconv

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