PHP和字符编码问题与Â字符 [英] PHP and character encoding problem with  character

问题描述

我有一个问题，PHP（5.2）在字符串中找不到字符Â，虽然很明显。

我意识到底层问题与字符编码有关，但不幸的是我无法控制源内容。我收到它作为UTF-8，这些字符已经在字符串。

我只想从字符串中删除它。 strpos（），str_replace（），preg_replace（），trim（）等无法正确识别它。

我的字符串是这样的：

 ÂÂ世界各地的情侣
  

如果我这样做：

  $ string = str_replace（'Â'，''，$ string）; 
  

我得到这个：

 Â      p p p p p p p p p p p p p p p p p p p p p p p p p p p p p p p p p p p p >我甚至在str_replace之前尝试过utf8_encode（）和utf8_decode（），没有运气。
 
 
 
有什么解决方案？我一直在扔我可以找到的一切... 
解决方案
我使用这个：
  function replaceSpecial（$ str）{
 $ chunked = str_split（$ str，1）; 
 $ str =; 
 foreach（$ chunked as $ chunk）{
 $ num = ord（$ chunk）; 
 //删除非ascii&非html字符
 if（$ num> = 32&& $ num <= 123）{
 $ str。= $ chunk; 
} 
} 
 return $ str; 
} 
  
 
I'm having a problem where PHP (5.2) cannot find the character 'Â' in a string, though it is clearly there.

I realize the underlying problem has to do with character encoding, but unfortunately I have no control over the source content. I receive it as UTF-8, with those characters already in the string.

I would simply like to remove it from the string. strpos(), str_replace(), preg_replace(), trim(), etc. Cannot correctly identify it. 

My string is this:
"Â  Â  Â  A lot of couples throughout the World "
If I do this:
$string = str_replace('Â','',$string);
I get this:
"� � � A lot of couples throughout the World"
I even tried utf8_encode() and utf8_decode() before the str_replace, with no luck.

What's the solution? I've been throwing everything I can find at it...
解决方案
I use this:
function replaceSpecial($str){
$chunked = str_split($str,1);
$str = ""; 
foreach($chunked as $chunk){
    $num = ord($chunk);
    // Remove non-ascii & non html characters
    if ($num >= 32 && $num <= 123){
            $str.=$chunk;
    }
}   
return $str;
} 


                        
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