28

I have a script which combines a number of files into one, and it breaks when one of the files has UTF8 encoding. I figure that I should be using the utf8_decode() function when reading the files, but I don't know how to tell which need decoding.

My code is basically:

$output = '';
foreach ($files as $filename) {
    $output .= file_get_contents($filename) . "\n";
}
file_put_contents('combined.txt', $output);

Currently, at the start of a UTF8 file, it adds these characters in the output: 

nickf
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10 Answers10

35

Try using the mb_detect_encoding function. This function will examine your string and attempt to "guess" what its encoding is. You can then convert it as desired. As brulak suggested, however, you're probably better off converting to UTF-8 rather than from, to preserve the data you're transmitting.

Community
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Ben Blank
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  • @bobince — I *swear* I've used them before without problems. Guess I won't anymore. ;-) – Ben Blank Feb 03 '09 at 18:05
  • Thanks for the link. Helped take care of my problem! – Just a guy Feb 16 '11 at 16:37
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    mb_detect_encoding() does not properly detect encoding changes within the text. Therefore the workaround in line 2 of my script: https://stackoverflow.com/a/15100592/22470 – powtac Jun 27 '17 at 13:42
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    mb_detect_encoding() return almost always ASCII. This is not a good way to check for UTF-8. Consider using mb_check_encoding instead. – Nek Sep 18 '17 at 12:50
  • please update the link for mb_detect_encoding to http://php.net/manual/en/function.mb-detect-encoding.php – vishwakarma09 Feb 20 '19 at 12:07
28

mb_detect_encoding function should be your last choice. That could return the wrong encoding. Linux command file -i /path/myfile.txt is working great. In PHP you could use:

function _detectFileEncoding($filepath) {
    // VALIDATE $filepath !!!
    $output = array();
    exec('file -i ' . $filepath, $output);
    if (isset($output[0])){
        $ex = explode('charset=', $output[0]);
        return isset($ex[1]) ? $ex[1] : null;
    }
    return null;
}
Peter Mortensen
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yanek1988m
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27

To make sure that the output is UTF-8, no matter what kind of input it was, I use this check:

if(!mb_check_encoding($output, 'UTF-8')
    OR !($output === mb_convert_encoding(mb_convert_encoding($output, 'UTF-32', 'UTF-8' ), 'UTF-8', 'UTF-32'))) {

    $output = mb_convert_encoding($content, 'UTF-8', 'pass'); 
}

// $output is now safely converted to UTF-8!
powtac
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    Thank you ... this solved a file encoding problem I had been bashing my head against a brick wall for hours on!! – GuruJ Jun 06 '14 at 05:37
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    Shouldn't the `$content` in the second `mb_convert_encoding` call be `$output`, too? Otherwise, where is `$content` coming from? – Oliver May 03 '16 at 12:52
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    If someone wondering about the "pass" => If "pass" is set, no character encoding conversion is performed. http://php.net/manual/en/mbstring.supported-encodings.php – 4wk_ Jun 22 '16 at 07:22
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    `echo mb_convert_encoding("žūų", 'UTF-8', 'pass');` in gnome-terminal (via php -a) outputs `žūų`. So despite documentation - character encoding conversion IS performed. And this is understandable - you can't go to miami beach if you are lost in forest – Agnius Vasiliauskas Oct 26 '17 at 07:55
  • @AgniusVasiliauskas sure! But therefore I make this rather complicated check to make sure it is UTF-8 before. – powtac Oct 26 '17 at 11:59
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    In your example on php.net site you use `system's internal encoding` in function mb_convert_encoding(). You are assuming that input string encoding will be the same as system's internal encoding. Don't assume anything – Agnius Vasiliauskas Oct 26 '17 at 16:20
  • @agnius what is your reccomendation? – powtac Oct 26 '17 at 20:31
  • i would suggest to detect input string encoding and pass it into convert encoding function. Detection: option 1 - with `mb_detect_encoding()`. This function is sensitive to "possible encodings list" parameter and also it depends on the order of encodings in that list. (Switching list items may produce different detected encoding). Option 2 : trying to apply two convert operations forward and back and checking if result is the same as input string for all encodings. One which gives same result - detected encoding. Several encodings may not change input string, so no guarantee in both methods. – Agnius Vasiliauskas Oct 27 '17 at 09:57
  • @AgniusVasiliauskas when I remember it correctly the mb_detect_encoding() did not return useful information. The only way to achive a conversion was via checking the result of convert_encoding. This was the big point of this pice of code. (the detect not beeing useful + making a == comparison and then a convert if necessary.) – powtac Oct 23 '20 at 11:02
3

This is my solution which worked like a charm:

//check string strict for encoding out of list of supported encodings
$enc = mb_detect_encoding($str, mb_list_encodings(), true);

if ($enc===false){
    //could not detect encoding
}
else if ($enc!=="UTF-8"){
    $str = mb_convert_encoding($str, "UTF-8", $enc);
}
else {
    //UTF-8 detected
}
PapaKai
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3

For Linux servers, I use this command: 

$file = 'your/file.ext'
exec( "from=`file -bi $file | awk -F'=' '{print $2 }'` && iconv -f \$from -t utf-8 $file -o $file" );
Peter Mortensen
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eleuteron
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1

I recently encountered this issue and the mb_convert_encoding() function output was UTF-8.

After taking a look at the response headers, there wasn't anything mentioning the encoding type, so I found Set HTTP header to UTF-8 using PHP, which proposes the following:

<?php
header('Content-Type: text/html; charset=utf-8');

After adding that to the top of the PHP file, all of the funky characters went away and it rendered as it should. I am not sure if that's the issue the original poster was seeking for, but I found this in trying to solve the issue myself and figured I'd share.

Peter Mortensen
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Amereservant
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1

Scans all file, finds any kind of encoding from mb_list_encodings, good performance..

    function detectFileEncoding($filePath){

    $fopen=fopen($filePath,'r');

    $row = fgets($fopen);
    $encodings = mb_list_encodings();
    $encoding = mb_detect_encoding( $row, "UTF-8, ASCII, Windows-1252, Windows-1254" );//these are my favorite encodings

    if($encoding !== false) {
        $key = array_search($encoding, $encodings) !== false;
        if ($key !== false)
            unset($encodings[$key]);
        $encodings = array_values($encodings);
    }

    $encKey = 0;
    while ($row = fgets($fopen)) {
        if($encoding == false){
            $encoding = $encodings[$encKey++];
        }

        if(!mb_check_encoding($row, $encoding)){
            $encoding =false;
            rewind($fopen);
        }

    }

    return $encoding;
}
akakargul
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1

How are you going to handle the non-ASCII characters from the UTF-8 or 16 or 32 file?

I ask because I think you may have a design issue here.

I would convert your output file into UTF-8 (or 16 or 32) instead of the other way around.

Then you won't have this problem.

Have you also considered the security issues that may arise from converting an escaped UTF-8 code? See this comment:

Detecting multi-byte encoding

Figure out what encoding your source file is in, then convert it to UTF-8, and you should be good to go.

Peter Mortensen
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cbrulak
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  • ok, so I should convert the non UTF-8 files into UTF-8... how do I tell which need a call to utf_encode()? – nickf Feb 03 '09 at 00:29
  • You don't. You have to know which encoding data are in - There is no reliable way to determine it, if you don't know. – troelskn Feb 04 '09 at 20:39
0
<?php

$file = 'myfile.csv';

function detect_encoding($file){
    return mb_detect_encoding(file_get_contents($file), mb_list_encodings());
}

if ( detect_encoding($file) == 'ISO-8859-1' ) {
    echo "ISO-8859-1 detected";
}
Arnoldas
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0

You can try this, I use a below method for checking it is ISO-8859-2 .I am looking for polish characters

public static function findEncoding($text)
 {
               $plUTF8 = array("ą","ę","ć","ż","ź","ł","ó","ń");                   
               
               //$lista = '437, 500, 500V1, 850, 851, 852, 855, 856, 857, 860, 861, 862, 863, 864, 865, 866, 866NAV, 869, 874, 904, 1026, 1046, 1047, 8859_1, 8859_2, 8859_3, 8859_4, 8859_5, 8859_6, 8859_7, 8859_8, 8859_9, 10646-1:1993, 10646-1:1993/UCS4, ANSI_X3.4-1968, ANSI_X3.4-1986, ANSI_X3.4, ANSI_X3.110-1983, ANSI_X3.110, ARABIC, ARABIC7, ARMSCII-8, ASCII, ASMO-708, ASMO_449, BALTIC, BIG-5, BIG-FIVE, BIG5-HKSCS, BIG5, BIG5HKSCS, BIGFIVE, BRF, BS_4730, CA, CN-BIG5, CN-GB, CN, CP-AR, CP-GR, CP-HU, CP037, CP038, CP273, CP274, CP275, CP278, CP280, CP281, CP282, CP284, CP285, CP290, CP297, CP367, CP420, CP423, CP424, CP437, CP500, CP737, CP770, CP771, CP772, CP773, CP774, CP775, CP803, CP813, CP819, CP850, CP851, CP852, CP855, CP856, CP857, CP860, CP861, CP862, CP863, CP864, CP865, CP866, CP866NAV, CP868, CP869, CP870, CP871, CP874, CP875, CP880, CP891, CP901, CP902, CP903, CP904, CP905, CP912, CP915, CP916, CP918, CP920, CP921, CP922, CP930, CP932, CP933, CP935, CP936, CP937, CP939, CP949, CP950, CP1004, CP1008, CP1025, CP1026, CP1046, CP1047, CP1070, CP1079, CP1081, CP1084, CP1089, CP1097, CP1112, CP1122, CP1123, CP1124, CP1125, CP1129, CP1130, CP1132, CP1133, CP1137, CP1140, CP1141, CP1142, CP1143, CP1144, CP1145, CP1146, CP1147, CP1148, CP1149, CP1153, CP1154, CP1155, CP1156, CP1157, CP1158, CP1160, CP1161, CP1162, CP1163, CP1164, CP1166, CP1167, CP1250, CP1251, CP1252, CP1253, CP1254, CP1255, CP1256, CP1257, CP1258, CP1282, CP1361, CP1364, CP1371, CP1388, CP1390, CP1399, CP4517, CP4899, CP4909, CP4971, CP5347, CP9030, CP9066, CP9448, CP10007, CP12712, CP16804, CPIBM861, CSA7-1, CSA7-2, CSASCII, CSA_T500-1983, CSA_T500, CSA_Z243.4-1985-1, CSA_Z243.4-1985-2, CSA_Z243.419851, CSA_Z243.419852, CSDECMCS, CSEBCDICATDE, CSEBCDICATDEA, CSEBCDICCAFR, CSEBCDICDKNO, CSEBCDICDKNOA, CSEBCDICES, CSEBCDICESA, CSEBCDICESS, CSEBCDICFISE, CSEBCDICFISEA, CSEBCDICFR, CSEBCDICIT, CSEBCDICPT, CSEBCDICUK, CSEBCDICUS, CSEUCKR, CSEUCPKDFMTJAPANESE, CSGB2312, CSHPROMAN8, CSIBM037, CSIBM038, CSIBM273, CSIBM274, CSIBM275, CSIBM277, CSIBM278, CSIBM280, CSIBM281, CSIBM284, CSIBM285, CSIBM290, CSIBM297, CSIBM420, CSIBM423, CSIBM424, CSIBM500, CSIBM803, CSIBM851, CSIBM855, CSIBM856, CSIBM857, CSIBM860, CSIBM863, CSIBM864, CSIBM865, CSIBM866, CSIBM868, CSIBM869, CSIBM870, CSIBM871, CSIBM880, CSIBM891, CSIBM901, CSIBM902, CSIBM903, CSIBM904, CSIBM905, CSIBM918, CSIBM921, CSIBM922, CSIBM930, CSIBM932, CSIBM933, CSIBM935, CSIBM937, CSIBM939, CSIBM943, CSIBM1008, CSIBM1025, CSIBM1026, CSIBM1097, CSIBM1112, CSIBM1122, CSIBM1123, CSIBM1124, CSIBM1129, CSIBM1130, CSIBM1132, CSIBM1133, CSIBM1137, CSIBM1140, CSIBM1141, CSIBM1142, CSIBM1143, CSIBM1144, CSIBM1145, CSIBM1146, CSIBM1147, CSIBM1148, CSIBM1149, CSIBM1153, CSIBM1154, CSIBM1155, CSIBM1156, CSIBM1157, CSIBM1158, CSIBM1160, CSIBM1161, CSIBM1163, CSIBM1164, CSIBM1166, CSIBM1167, CSIBM1364, CSIBM1371, CSIBM1388, CSIBM1390, CSIBM1399, CSIBM4517, CSIBM4899, CSIBM4909, CSIBM4971, CSIBM5347, CSIBM9030, CSIBM9066, CSIBM9448, CSIBM12712, CSIBM16804, CSIBM11621162, CSISO4UNITEDKINGDOM, CSISO10SWEDISH, CSISO11SWEDISHFORNAMES, CSISO14JISC6220RO, CSISO15ITALIAN, CSISO16PORTUGESE, CSISO17SPANISH, CSISO18GREEK7OLD, CSISO19LATINGREEK, CSISO21GERMAN, CSISO25FRENCH, CSISO27LATINGREEK1, CSISO49INIS, CSISO50INIS8, CSISO51INISCYRILLIC, CSISO58GB1988, CSISO60DANISHNORWEGIAN, CSISO60NORWEGIAN1, CSISO61NORWEGIAN2, CSISO69FRENCH, CSISO84PORTUGUESE2, CSISO85SPANISH2, CSISO86HUNGARIAN, CSISO88GREEK7, CSISO89ASMO449, CSISO90, CSISO92JISC62991984B, CSISO99NAPLPS, CSISO103T618BIT, CSISO111ECMACYRILLIC, CSISO121CANADIAN1, CSISO122CANADIAN2, CSISO139CSN369103, CSISO141JUSIB1002, CSISO143IECP271, CSISO150, CSISO150GREEKCCITT, CSISO151CUBA, CSISO153GOST1976874, CSISO646DANISH, CSISO2022CN, CSISO2022JP, CSISO2022JP2, CSISO2022KR, CSISO2033, CSISO5427CYRILLIC, CSISO5427CYRILLIC1981, CSISO5428GREEK, CSISO10367BOX, CSISOLATIN1, CSISOLATIN2, CSISOLATIN3, CSISOLATIN4, CSISOLATIN5, CSISOLATIN6, CSISOLATINARABIC, CSISOLATINCYRILLIC, CSISOLATINGREEK, CSISOLATINHEBREW, CSKOI8R, CSKSC5636, CSMACINTOSH, CSNATSDANO, CSNATSSEFI, CSN_369103, CSPC8CODEPAGE437, CSPC775BALTIC, CSPC850MULTILINGUAL, CSPC862LATINHEBREW, CSPCP852, CSSHIFTJIS, CSUCS4, CSUNICODE, CSWINDOWS31J, CUBA, CWI-2, CWI, CYRILLIC, DE, DEC-MCS, DEC, DECMCS, DIN_66003, DK, DS2089, DS_2089, E13B, EBCDIC-AT-DE-A, EBCDIC-AT-DE, EBCDIC-BE, EBCDIC-BR, EBCDIC-CA-FR, EBCDIC-CP-AR1, EBCDIC-CP-AR2, EBCDIC-CP-BE, EBCDIC-CP-CA, EBCDIC-CP-CH, EBCDIC-CP-DK, EBCDIC-CP-ES, EBCDIC-CP-FI, EBCDIC-CP-FR, EBCDIC-CP-GB, EBCDIC-CP-GR, EBCDIC-CP-HE, EBCDIC-CP-IS, EBCDIC-CP-IT, EBCDIC-CP-NL, EBCDIC-CP-NO, EBCDIC-CP-ROECE, EBCDIC-CP-SE, EBCDIC-CP-TR, EBCDIC-CP-US, EBCDIC-CP-WT, EBCDIC-CP-YU, EBCDIC-CYRILLIC, EBCDIC-DK-NO-A, EBCDIC-DK-NO, EBCDIC-ES-A, EBCDIC-ES-S, EBCDIC-ES, EBCDIC-FI-SE-A, EBCDIC-FI-SE, EBCDIC-FR, EBCDIC-GREEK, EBCDIC-INT, EBCDIC-INT1, EBCDIC-IS-FRISS, EBCDIC-IT, EBCDIC-JP-E, EBCDIC-JP-KANA, EBCDIC-PT, EBCDIC-UK, EBCDIC-US, EBCDICATDE, EBCDICATDEA, EBCDICCAFR, EBCDICDKNO, EBCDICDKNOA, EBCDICES, EBCDICESA, EBCDICESS, EBCDICFISE, EBCDICFISEA, EBCDICFR, EBCDICISFRISS, EBCDICIT, EBCDICPT, EBCDICUK, EBCDICUS, ECMA-114, ECMA-118, ECMA-128, ECMA-CYRILLIC, ECMACYRILLIC, ELOT_928, ES, ES2, EUC-CN, EUC-JISX0213, EUC-JP-MS, EUC-JP, EUC-KR, EUC-TW, EUCCN, EUCJP-MS, EUCJP-OPEN, EUCJP-WIN, EUCJP, EUCKR, EUCTW, FI, FR, GB, GB2312, GB13000, GB18030, GBK, GB_1988-80, GB_198880, GEORGIAN-ACADEMY, GEORGIAN-PS, GOST_19768-74, GOST_19768, GOST_1976874, GREEK-CCITT, GREEK, GREEK7-OLD, GREEK7, GREEK7OLD, GREEK8, GREEKCCITT, HEBREW, HP-GREEK8, HP-ROMAN8, HP-ROMAN9, HP-THAI8, HP-TURKISH8, HPGREEK8, HPROMAN8, HPROMAN9, HPTHAI8, HPTURKISH8, HU, IBM-803, IBM-856, IBM-901, IBM-902, IBM-921, IBM-922, IBM-930, IBM-932, IBM-933, IBM-935, IBM-937, IBM-939, IBM-943, IBM-1008, IBM-1025, IBM-1046, IBM-1047, IBM-1097, IBM-1112, IBM-1122, IBM-1123, IBM-1124, IBM-1129, IBM-1130, IBM-1132, IBM-1133, IBM-1137, IBM-1140, IBM-1141, IBM-1142, IBM-1143, IBM-1144, IBM-1145, IBM-1146, IBM-1147, IBM-1148, IBM-1149, IBM-1153, IBM-1154, IBM-1155, IBM-1156, IBM-1157, IBM-1158, IBM-1160, IBM-1161, IBM-1162, IBM-1163, IBM-1164, IBM-1166, IBM-1167, IBM-1364, IBM-1371, IBM-1388, IBM-1390, IBM-1399, IBM-4517, IBM-4899, IBM-4909, IBM-4971, IBM-5347, IBM-9030, IBM-9066, IBM-9448, IBM-12712, IBM-16804, IBM037, IBM038, IBM256, IBM273, IBM274, IBM275, IBM277, IBM278, IBM280, IBM281, IBM284, IBM285, IBM290, IBM297, IBM367, IBM420, IBM423, IBM424, IBM437, IBM500, IBM775, IBM803, IBM813, IBM819, IBM848, IBM850, IBM851, IBM852, IBM855, IBM856, IBM857, IBM860, IBM861, IBM862, IBM863, IBM864, IBM865, IBM866, IBM866NAV, IBM868, IBM869, IBM870, IBM871, IBM874, IBM875, IBM880, IBM891, IBM901, IBM902, IBM903, IBM904, IBM905, IBM912, IBM915, IBM916, IBM918, IBM920, IBM921, IBM922, IBM930, IBM932, IBM933, IBM935, IBM937, IBM939, IBM943, IBM1004, IBM1008, IBM1025, IBM1026, IBM1046, IBM1047, IBM1089, IBM1097, IBM1112, IBM1122, IBM1123, IBM1124, IBM1129, IBM1130, IBM1132, IBM1133, IBM1137, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144, IBM1145, IBM1146, IBM1147, IBM1148, IBM1149, IBM1153, IBM1154, IBM1155, IBM1156, IBM1157, IBM1158, IBM1160, IBM1161, IBM1162, IBM1163, IBM1164, IBM1166, IBM1167, IBM1364, IBM1371, IBM1388, IBM1390, IBM1399, IBM4517, IBM4899, IBM4909, IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712, IBM16804, IEC_P27-1, IEC_P271, INIS-8, INIS-CYRILLIC, INIS, INIS8, INISCYRILLIC, ISIRI-3342, ISIRI3342, ISO-2022-CN-EXT, ISO-2022-CN, ISO-2022-JP-2, ISO-2022-JP-3, ISO-2022-JP, ISO-2022-KR, ISO-8859-1, ISO-8859-2, ISO-8859-3, ISO-8859-4, ISO-8859-5, ISO-8859-6, ISO-8859-7, ISO-8859-8, ISO-8859-9, ISO-8859-9E, ISO-8859-10, ISO-8859-11, ISO-8859-13, ISO-8859-14, ISO-8859-15, ISO-8859-16, ISO-10646, ISO-10646/UCS2, ISO-10646/UCS4, ISO-10646/UTF-8, ISO-10646/UTF8, ISO-CELTIC, ISO-IR-4, ISO-IR-6, ISO-IR-8-1, ISO-IR-9-1, ISO-IR-10, ISO-IR-11, ISO-IR-14, ISO-IR-15, ISO-IR-16, ISO-IR-17, ISO-IR-18, ISO-IR-19, ISO-IR-21, ISO-IR-25, ISO-IR-27, ISO-IR-37, ISO-IR-49, ISO-IR-50, ISO-IR-51, ISO-IR-54, ISO-IR-55, ISO-IR-57, ISO-IR-60, ISO-IR-61, ISO-IR-69, ISO-IR-84, ISO-IR-85, ISO-IR-86, ISO-IR-88, ISO-IR-89, ISO-IR-90, ISO-IR-92, ISO-IR-98, ISO-IR-99, ISO-IR-100, ISO-IR-101, ISO-IR-103, ISO-IR-109, ISO-IR-110, ISO-IR-111, ISO-IR-121, ISO-IR-122, ISO-IR-126, ISO-IR-127, ISO-IR-138, ISO-IR-139, ISO-IR-141, ISO-IR-143, ISO-IR-144, ISO-IR-148, ISO-IR-150, ISO-IR-151, ISO-IR-153, ISO-IR-155, ISO-IR-156, ISO-IR-157, ISO-IR-166, ISO-IR-179, ISO-IR-193, ISO-IR-197, ISO-IR-199, ISO-IR-203, ISO-IR-209, ISO-IR-226, ISO/TR_11548-1, ISO646-CA, ISO646-CA2, ISO646-CN, ISO646-CU, ISO646-DE, ISO646-DK, ISO646-ES, ISO646-ES2, ISO646-FI, ISO646-FR, ISO646-FR1, ISO646-GB, ISO646-HU, ISO646-IT, ISO646-JP-OCR-B, ISO646-JP, ISO646-KR, ISO646-NO, ISO646-NO2, ISO646-PT, ISO646-PT2, ISO646-SE, ISO646-SE2, ISO646-US, ISO646-YU, ISO2022CN, ISO2022CNEXT, ISO2022JP, ISO2022JP2, ISO2022KR, ISO6937, ISO8859-1, ISO8859-2, ISO8859-3, ISO8859-4, ISO8859-5, ISO8859-6, ISO8859-7, ISO8859-8, ISO8859-9, ISO8859-9E, ISO8859-10, ISO8859-11, ISO8859-13, ISO8859-14, ISO8859-15, ISO8859-16, ISO11548-1, ISO88591, ISO88592, ISO88593, ISO88594, ISO88595, ISO88596, ISO88597, ISO88598, ISO88599, ISO88599E, ISO885910, ISO885911, ISO885913, ISO885914, ISO885915, ISO885916, ISO_646.IRV:1991, ISO_2033-1983, ISO_2033, ISO_5427-EXT, ISO_5427, ISO_5427:1981, ISO_5427EXT, ISO_5428, ISO_5428:1980, ISO_6937-2, ISO_6937-2:1983, ISO_6937, ISO_6937:1992, ISO_8859-1, ISO_8859-1:1987, ISO_8859-2, ISO_8859-2:1987, ISO_8859-3, ISO_8859-3:1988, ISO_8859-4, ISO_8859-4:1988, ISO_8859-5, ISO_8859-5:1988, ISO_8859-6, ISO_8859-6:1987, ISO_8859-7, ISO_8859-7:1987, ISO_8859-7:2003, ISO_8859-8, ISO_8859-8:1988, ISO_8859-9, ISO_8859-9:1989, ISO_8859-9E, ISO_8859-10, ISO_8859-10:1992, ISO_8859-14, ISO_8859-14:1998, ISO_8859-15, ISO_8859-15:1998, ISO_8859-16, ISO_8859-16:2001, ISO_9036, ISO_10367-BOX, ISO_10367BOX, ISO_11548-1, ISO_69372, IT, JIS_C6220-1969-RO, JIS_C6229-1984-B, JIS_C62201969RO, JIS_C62291984B, JOHAB, JP-OCR-B, JP, JS, JUS_I.B1.002, KOI-7, KOI-8, KOI8-R, KOI8-RU, KOI8-T, KOI8-U, KOI8, KOI8R, KOI8U, KSC5636, L1, L2, L3, L4, L5, L6, L7, L8, L10, LATIN-9, LATIN-GREEK-1, LATIN-GREEK, LATIN1, LATIN2, LATIN3, LATIN4, LATIN5, LATIN6, LATIN7, LATIN8, LATIN9, LATIN10, LATINGREEK, LATINGREEK1, MAC-CENTRALEUROPE, MAC-CYRILLIC, MAC-IS, MAC-SAMI, MAC-UK, MAC, MACCYRILLIC, MACINTOSH, MACIS, MACUK, MACUKRAINIAN, MIK, MS-ANSI, MS-ARAB, MS-CYRL, MS-EE, MS-GREEK, MS-HEBR, MS-MAC-CYRILLIC, MS-TURK, MS932, MS936, MSCP949, MSCP1361, MSMACCYRILLIC, MSZ_7795.3, MS_KANJI, NAPLPS, NATS-DANO, NATS-SEFI, NATSDANO, NATSSEFI, NC_NC0010, NC_NC00-10, NC_NC00-10:81, NF_Z_62-010, NF_Z_62-010_(1973), NF_Z_62-010_1973, NF_Z_62010, NF_Z_62010_1973, NO, NO2, NS_4551-1, NS_4551-2, NS_45511, NS_45512, OS2LATIN1, OSF00010001, OSF00010002, OSF00010003, OSF00010004, OSF00010005, OSF00010006, OSF00010007, OSF00010008, OSF00010009, OSF0001000A, OSF00010020, OSF00010100, OSF00010101, OSF00010102, OSF00010104, OSF00010105, OSF00010106, OSF00030010, OSF0004000A, OSF0005000A, OSF05010001, OSF100201A4, OSF100201A8, OSF100201B5, OSF100201F4, OSF100203B5, OSF1002011C, OSF1002011D, OSF1002035D, OSF1002035E, OSF1002035F, OSF1002036B, OSF1002037B, OSF10010001, OSF10010004, OSF10010006, OSF10020025, OSF10020111, OSF10020115, OSF10020116, OSF10020118, OSF10020122, OSF10020129, OSF10020352, OSF10020354, OSF10020357, OSF10020359, OSF10020360, OSF10020364, OSF10020365, OSF10020366, OSF10020367, OSF10020370, OSF10020387, OSF10020388, OSF10020396, OSF10020402, OSF10020417, PT, PT2, PT154, R8, R9, RK1048, ROMAN8, ROMAN9, RUSCII, SE, SE2, SEN_850200_B, SEN_850200_C, SHIFT-JIS, SHIFT_JIS, SHIFT_JISX0213, SJIS-OPEN, SJIS-WIN, SJIS, SS636127, STRK1048-2002, ST_SEV_358-88, T.61-8BIT, T.61, T.618BIT, TCVN-5712, TCVN, TCVN5712-1, TCVN5712-1:1993, THAI8, TIS-620, TIS620-0, TIS620.2529-1, TIS620.2533-0, TIS620, TS-5881, TSCII, TURKISH8, UCS-2, UCS-2BE, UCS-2LE, UCS-4, UCS-4BE, UCS-4LE, UCS2, UCS4, UHC, UJIS, UK, UNICODE, UNICODEBIG, UNICODELITTLE, US-ASCII, US, UTF-7, UTF-8, UTF-16, UTF-16BE, UTF-16LE, UTF-32, UTF-32BE, UTF-32LE, UTF7, UTF8, UTF16, UTF16BE, UTF16LE, UTF32, UTF32BE, UTF32LE, VISCII, WCHAR_T, WIN-SAMI-2, WINBALTRIM, WINDOWS-31J, WINDOWS-874, WINDOWS-936, WINDOWS-1250, WINDOWS-1251, WINDOWS-1252, WINDOWS-1253, WINDOWS-1254, WINDOWS-1255, WINDOWS-1256, WINDOWS-1257, WINDOWS-1258, WINSAMI2, WS2, YU';                    
               $lista = array('WINDOWS-1250',"CP852","CP850","ISO-8859-2","ISO-8859-1","UTF-8");
               
               $wyniki = array();
               foreach($lista as $ixL => $code)
               {
                   $wyniki[] = array('code'=>$code, 'result'=>0, 'text' => iconv(  $code, 'UTF-8//IGNORE', $text) );
               }
                            
              
               foreach($plUTF8 as $ixxx => $char)
               {
                 foreach ($wyniki as $wX => $wRes)  
                 {
                       if(is_numeric(strpos($wRes['text'], $char) ))
                       {
                          $wyniki[$wX]['result']++;
                       }
                 }                                          
               }
               
               $findInx = 0;
               $max     = 0;
               
                foreach ($wyniki as $wX => $wRes)  
                 {
                      if($wyniki[$wX]['result'] > $max)
                      {
                          $max = $wyniki[$wX]['result'];
                          $findInx = $wX;
                      }
                 } 
               
               $encodingIn =$wyniki[$findInx]['code'];
               $encodingOut ='UTF-8';
               
              // $ret = iconv(  $encodingIn, $encodingOut, $text);
              // return $ret;
               return $encodingIn;
              
 }
Blazej Kita
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