php 字符串编码转换程序_PHP教程

echo $str= '你好,这里是卖咖啡!';
echo '
';

echo iconv('GB2312', 'UTF-8', $str);      //将字符串的编码从GB2312转到UTF-8
echo '
';

echo iconv_substr($str, 1, 1, 'UTF-8');   //按字符个数截取而非字节
print_r(iconv_get_encoding());            //得到当前页面编码信息

echo iconv_strlen($str, 'UTF-8');         //得到设定编码的字符串长度

//也有这样用的

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   $content = iconv("UTF-8","gbk//TRANSLIT",$content);
?>

function phpcharset($data, $to) {
 if(is_array($data)) {
  foreach($data as $key => $val) {
   $data[$key] = phpcharset($val, $to);
  }
 } else {
  $encode_array = array('ASCII', 'UTF-8', 'GBK', 'GB2312', 'BIG5');
  $encoded = mb_detect_encoding($data, $encode_array);
  $to = strtoupper($to);
  if($encoded != $to) {
   $data = mb_convert_encoding($data, $to, $encoded);
  }
 }
 return $data;
}
?>

function asciitog($brand)
{
 $cha=mb_detect_encoding($brand);
 if($cha=='utf-8')
 {
   $brand2 = iconv($cha,"gb2312",$brand);
 }
 $cha2=mb_detect_encoding($brand2);
 if($cha2!='ascii'){
  $brand=$brand2;
 }
 
 return $brand;
}