iconv (PHP 4 >= 4.0.5)iconv -- Convert string to requested character encoding Description string iconv ( string in_charset, string out_charset, string str) Performs a character set conversion on the string str from in_charset to out_charset. Returns the converted string or FALSE on failure. 例子 1. iconv() example:<?php echo iconv("ISO-8859-1", "UTF-8", "This is a test."); ?>
php 4.3.1后可以用iconv函数
(PHP 4 >= 4.0.5)iconv -- Convert string to requested character encoding
Description
string iconv ( string in_charset, string out_charset, string str)
Performs a character set conversion on the string str from in_charset to out_charset. Returns the converted string or FALSE on failure. 例子 1. iconv() example:<?php
echo iconv("ISO-8859-1", "UTF-8", "This is a test.");
?>
(PHP 3>= 3.0.6, PHP 4 )
utf8_encode -- 将 ISO-8859-1 编码的字符串转换为 UTF-8 编码
描述
string utf8_encode ( string data)
由于xmldom比较娇嫩,一出现不同字符集的文字就PARSE出错。
所以我想在进数据库之前,把所有字符转换一下。
当然要在服务器端完成,如果在client中完成的话不安全。utf8_encode编码后,浏览器不能正常显示。
查表(gb2312.txt)也行
<?
$text = "电子书库";
preg_match_all("/[\x80-\xff]?./",$text,$ar);
foreach($ar[0] as $v)
echo "&#".utf8_unicode(iconv("GB2312","UTF-8",$v)).";";
?>
<?
// utf8 -> unicode
function utf8_unicode($c) {
switch(strlen($c)) {
case 1:
return ord($c);
case 2:
$n = (ord($c[0]) & 0x3f) << 6;
$n += ord($c[1]) & 0x3f;
return $n;
case 3:
$n = (ord($c[0]) & 0x1f) << 12;
$n += (ord($c[1]) & 0x3f) << 6;
$n += ord($c[2]) & 0x3f;
return $n;
case 4:
$n = (ord($c[0]) & 0x0f) << 18;
$n += (ord($c[1]) & 0x3f) << 12;
$n += (ord($c[2]) & 0x3f) << 6;
$n += ord($c[3]) & 0x3f;
return $n;
}
}
?>
下面的例子是利用php将"全"这中编码转换为gb2312.
<?php
$str = "TTL全天候自动聚焦";
$str = preg_replace("|&#([0-9]{1,5});|", "\".u2utf82gb(\\1).\"", $str);
$str = "\$str=\"$str\";";eval($str);
echo $str;function u2utf82gb($c){
$str="";
if ($c < 0x80) {
$str.=$c;
} else if ($c < 0x800) {
$str.=chr(0xC0 | $c>>6);
$str.=chr(0x80 | $c & 0x3F);
} else if ($c < 0x10000) {
$str.=chr(0xE0 | $c>>12);
$str.=chr(0x80 | $c>>6 & 0x3F);
$str.=chr(0x80 | $c & 0x3F);
} else if ($c < 0x200000) {
$str.=chr(0xF0 | $c>>18);
$str.=chr(0x80 | $c>>12 & 0x3F);
$str.=chr(0x80 | $c>>6 & 0x3F);
$str.=chr(0x80 | $c & 0x3F);
}
return iconv('UTF-8', 'GB2312', $str);
}
?>或者是function unescape($str) {
$str = rawurldecode($str);
preg_match_all("/(?:%u.{4})|&#x.{4};|&#\d+;|.+/U",$str,$r);
$ar = $r[0];
print_r($ar);
foreach($ar as $k=>$v) {
if(substr($v,0,2) == "%u")
$ar[$k] = iconv("UCS-2","GB2312",pack("H4",substr($v,-4)));
elseif(substr($v,0,3) == "&#x")
$ar[$k] = iconv("UCS-2","GB2312",pack("H4",substr($v,3,-1)));
elseif(substr($v,0,2) == "&#") {
echo substr($v,2,-1)."<br>";
$ar[$k] = iconv("UCS-2","GB2312",pack("n",substr($v,2,-1)));
}
}
return join("",$ar);
}$str = "TTL全天候自动聚焦";
echo unescape($str); //out TTL全天候自动聚焦