Функції iconv

Прогляньте також

Прогляньте також функції GNU Recode.

Зміст

iconv — Convert a string from one character encoding to another
iconv_get_encoding — Retrieve internal configuration variables of iconv extension
iconv_mime_decode — Decodes a MIME header field
iconv_mime_decode_headers — Decodes multiple MIME header fields at once
iconv_mime_encode — Composes a MIME header field
iconv_set_encoding — Set current setting for character encoding conversion
iconv_strlen — Повертає кількість символів в рядку
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
ob_iconv_handler — Convert character encoding as output buffer handler

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User Contributed Notes 2 notes

down

Martin Petrov ¶

15 years ago

This is edited functions utf8_to_cp1251 and cp1251_to_utf8. 

Changes: Check current string encoding.



<?php

function cp1251_to_utf8($s)

  {

  if ((mb_detect_encoding($s,'UTF-8,CP1251')) == "WINDOWS-1251")

    {

    $c209 = chr(209); $c208 = chr(208); $c129 = chr(129);

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

      {

      $c=ord($s[$i]);

      if ($c>=192 and $c<=239) $t.=$c208.chr($c-48);

      elseif ($c>239) $t.=$c209.chr($c-112);

      elseif ($c==184) $t.=$c209.$c209;

      elseif ($c==168)    $t.=$c208.$c129;

      else $t.=$s[$i];

      }

    return $t;

    }

  else

    {

    return $s;

    }

   }



function utf8_to_cp1251($s)

  {

  if ((mb_detect_encoding($s,'UTF-8,CP1251')) == "UTF-8")

    {

    for ($c=0;$c<strlen($s);$c++)

      {

      $i=ord($s[$c]);

      if ($i<=127) $out.=$s[$c];

      if ($byte2)

        {

        $new_c2=($c1&3)*64+($i&63);

        $new_c1=($c1>>2)&5;

        $new_i=$new_c1*256+$new_c2;

        if ($new_i==1025)

          {

          $out_i=168;

          } else {

          if ($new_i==1105)

            {

            $out_i=184;

            } else {

            $out_i=$new_i-848;

            }

          }

        $out.=chr($out_i);

        $byte2=false;

        }

        if (($i>>5)==6)

          {

          $c1=$i;

          $byte2=true;

          }

      }

    return $out;

    }

  else

    {

    return $s;

    }

  }

?>

down

-2

nod at mobi dot kz ¶

18 years ago

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);
}

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