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Fix: utf8 detector

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Laurent Destailleur
2010-09-29 08:05:22 +00:00
parent 92778276da
commit cec9a65b0c
1 changed files with 13 additions and 12 deletions
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25
htdocs/lib/functions.lib.php
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@@ -3318,23 +3318,24 @@ function dol_sort_array(&$array, $index, $order='asc', $natsort, $case_sensitive
/** /**
* \brief Check if a string is in UTF8 * Check if a string is in UTF8
* \param $Str String to check * @param $Str String to check
* \return boolean True if string is UTF8 or ISO compatible with UTF8, False if not (ISO with special char or Binary) * @return boolean True if string is UTF8 or ISO compatible with UTF8, False if not (ISO with special char or Binary)
*/ */
function utf8_check($Str) function utf8_check($str)
{ {
for ($i=0; $i<dol_strlen($Str); $i++) // We must use here a binary strlen function (so not dol_strlen)
for ($i=0; $i<strlen($str); $i++)
{ {
if (ord($Str[$i]) < 0x80) continue; # 0bbbbbbb if (ord($str[$i]) < 0x80) continue; # 0bbbbbbb
elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb elseif ((ord($str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb elseif ((ord($str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb elseif ((ord($str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb elseif ((ord($str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b elseif ((ord($str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
else return false; # Does not match any model else return false; # Does not match any model
for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ? for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ?
if ((++$i == dol_strlen($Str)) || ((ord($Str[$i]) & 0xC0) != 0x80)) if ((++$i == strlen($str)) || ((ord($str[$i]) & 0xC0) != 0x80))
return false; return false;
} }
} }