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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
* \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)
* Check if a string is in UTF8
* @param $Str String to check
* @return boolean True if string is UTF8 or ISO compatible with UTF8, False if not (ISO with special char or Binary)
*/
function utf8_check($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[$i]) < 0x80) continue; # 0bbbbbbb
elseif ((ord($Str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
elseif ((ord($Str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
elseif ((ord($Str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
elseif ((ord($Str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
elseif ((ord($Str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
if (ord($str[$i]) < 0x80) continue; # 0bbbbbbb
elseif ((ord($str[$i]) & 0xE0) == 0xC0) $n=1; # 110bbbbb
elseif ((ord($str[$i]) & 0xF0) == 0xE0) $n=2; # 1110bbbb
elseif ((ord($str[$i]) & 0xF8) == 0xF0) $n=3; # 11110bbb
elseif ((ord($str[$i]) & 0xFC) == 0xF8) $n=4; # 111110bb
elseif ((ord($str[$i]) & 0xFE) == 0xFC) $n=5; # 1111110b
else return false; # Does not match any model
for ($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;
}
}