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<?php
/**
* °ÑÒ»¸öºº×ÖתΪunicodeµÄͨÓú¯Êý£¬²»ÒÀÀµÈκο⣬ºÍ±ðµÄ×Ô¶¨Ò庯Êý£¬µ«ÓÐÌõ¼þ
* Ìõ¼þ£º±¾ÎļþÒÔ¼°º¯ÊýµÄÊäÈë²ÎÊýÓ¦¸ÃÓÃutf-8±àÂ룬²»È»Òª¼Óº¯Êýת»»
* ÆäʵÒà¿ÉÇáÒ×±àд·´Ïòת»»µÄº¯Êý£¬ÉõÖÁ²»¾ÖÏÞÓÚºº×Ö£¬Ææ¹ÖΪʲôPHPûÓÐÏֳɺ¯Êý
* @author xieye
*
* @param {string} $word ±ØÐëÊÇÒ»¸öºº×Ö£¬»ò´ú±íºº×ÖµÄÒ»¸öÊý×é(ÓÃstr_splitÇиî¹ý)
* @return {string} Ò»¸öÊ®½øÖÆunicodeÂ룬Èç4f60£¬´ú±íºº×Ö “Äã”
*
* @example
echo "Äã ".getUnicodefromOneUTF8("Äã");
echo "<br />";
echo "ºÃ ".getUnicodefromOneUTF8("ºÃ");
echo "<br />";
echo "ÄãºÃ ".getUnicodefromOneUTF8("ÄãºÃ");
echo "<br />";
echo "ÄãºÃÂð ".getUnicodefromOneUTF8("ÄãºÃÂð");
Äã 20320
ºÃ 22909
ÄãºÃ 251503099357000
ÄãºÃÂð 4.21952182258E+21
*/
function getUnicodefromOneUTF8($word) {
//»ñÈ¡Æä×Ö·ûµÄÄÚ²¿Êý×é±íʾ£¬ËùÒÔ±¾ÎļþÓ¦ÓÃutf-8±àÂë!
if (is_array( $word))
$arr = $word;
else
$arr = str_split($word);
//´Ëʱ£¬$arrÓ¦ÀàËÆarray(228, 189, 160)
//¶¨ÒåÒ»¸ö¿Õ×Ö·û´®´æ´¢
$bin_str = '';
//ת³ÉÊý×ÖÔÙת³É¶þ½øÖÆ×Ö·û´®£¬×îºóÁªºÏÆðÀ´¡£
foreach ($arr as $value)
$bin_str .= decbin(ord($value));
//´Ëʱ£¬$bin_strÓ¦ÀàËÆ111001001011110110100000,Èç¹ûÊǺº×Ö"Äã"
//ÕýÔò½ØÈ¡
$bin_str = preg_replace('/^.{4}(.{4}).{2}(.{6}).{2}(.{6})$/','$1$2$3', $bin_str);
//´Ëʱ£¬ $bin_strÓ¦ÀàËÆ0100111101100000,Èç¹ûÊǺº×Ö"Äã"
return bindec($bin_str);
//·µ»ØÀàËÆ20320£¬ ºº×Ö"Äã"
//return dechex(bindec($bin_str));
//ÈçÏë·µ»ØÊ®Áù½øÖÆ4f60£¬ÓÃÕâ¾ä
}
echo "Äã ".getUnicodefromOneUTF8("Äã");
echo "<br />";
echo "ºÃ ".getUnicodefromOneUTF8("ºÃ");
echo "<br />";
echo "ÄãºÃ ".getUnicodefromOneUTF8("ÄãºÃ");
echo "<br />";
echo "ÄãºÃÂð ".getUnicodefromOneUTF8("ÄãºÃÂð");
exit;
?>
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