我需要将UTF-8中的文本转换为ISO-8859-1中编码的文本,这样任何不属于ISO-8859-1集的字符都将变成字符引用. (exβ)
示例：我想将文字转换为
hello é β 水
成
hello é β 水
我在PHP中做这一切.我尝试了内置函数,iconv,整洁和组合,仍然无法获得可靠的解决方案.
这是我到目前为止所拥有的
// convert any characters fount in the entity table into HTML entities
// do not double encode entities,do not mess with quotes
// use UTF-8 as character encoding because the page submits UTF-8
$str = htmlentities($str,ENT_NOQUOTES,'UTF-8',false);
//print $str."\n";
// convert text from UTF-8 to ISO-8859-1,// characters that cannot be converted will be converted to ?
$str = utf8_decode($str);
//print $str."\n";
// make string XML valid.
// mainly it converts text entities into numeric entities.
$opts = array( "output-xhtml" => true,"output-xml" => true,"show-body-only" => true,"numeric-entities" => true,"wrap" => 0,"indent" => false,"char-encoding" => 'latin1'
);
$tidy = tidy_parse_string($str,$opts,'latin1');
tidy_clean_repair($tidy);
$str = tidy_get_output($tidy);
//print $str."\n";
您需要多字节支持.特别是,mb_encode_numericentity()：
$convmap= array(0x0100,0xFFFF,0xFFFF); $encutf= mb_encode_numericentity($utf,$convmap,'UTF-8'); $iso= utf8_decode($encutf);
(这不会触及<,&,“等,所以你可能也需要预先使用htmlspecialchars().)