从php字符串中删除奇怪的字符

Question

这就是我现在所拥有的

将RSS源绘制到php中,来自rss feed的原始xml读取:

Paul’s Confidence

我到目前为止的PHP就是这个.

$newtitle = $item->title;
$newtitle = utf8_decode($newtitle);

以上回报;

Paul?s Confidence

如果我删除utf_decode,我得到这个

Paul’s Confidence

当我尝试str_replace;

$newtitle = str_replace("”", "", $newtitle);

它不起作用,我得到;

Paul’s Confidence

有什么想法吗？

Answer 1

无论编码如何,这都是我的功能:

function RemoveBS($Str) {  
  $StrArr = str_split($Str); $NewStr = '';
  foreach ($StrArr as $Char) {    
    $CharNo = ord($Char);
    if ($CharNo == 163) { $NewStr .= $Char; continue; } // keep £ 
    if ($CharNo > 31 && $CharNo < 127) {
      $NewStr .= $Char;    
    }
  }  
  return $NewStr;
}

这个怎么运作:

echo RemoveBS('Hello õhowå åare youÆ?'); // Hello how are you?

Answer 2

试试这个:

$newtitle = html_entity_decode($newtitle, ENT_QUOTES, "UTF-8")

如果这不是解决方案,请浏览此页面http://us2.php.net/manual/en/function.html-entity-decode.php

Answer 3

这将从字符串中删除所有非ascii字符/特殊字符.

//Remove from a single line string
$output = "Likening ‘not-critical’ with";
$output = preg_replace('/[^(\x20-\x7F)]*/','', $output);
echo $output;
 
//Remove from a multi-line string
$output = "Likening ‘not-critical’ with \n Likening ‘not-critical’ with \r Likening ‘not-critical’ with. ' ! -.";
$output = preg_replace('/[^(\x20-\x7F)\x0A\x0D]*/','', $output);
echo $output;

Answer 4

我解决了这个问题.似乎是一个简短的修复,而不是更大的问题,但它的工作原理.

$newtitle = str_replace('’', "'", $newtitle);

我还发现这个有用的snippit可以帮助其他人解决同样的问题;

<?
$find[] = '“'; // left side double smart quote
$find[] = 'â€'; // right side double smart quote
$find[] = '‘'; // left side single smart quote
$find[] = '’'; // right side single smart quote
$find[] = '…'; // elipsis
$find[] = '—'; // em dash
$find[] = '–'; // en dash

$replace[] = '"';
$replace[] = '"';
$replace[] = "'";
$replace[] = "'";
$replace[] = "...";
$replace[] = "-";
$replace[] = "-";

$text = str_replace($find, $replace, $text);
?>

感谢大家的时间和考虑.

Answer 5

是的,这对我不起作用.这是什么解决方法？ - vaichidrewar 3月12日22:29

将其添加到HTML头部(或者如果已经存在则修改):

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

这会将有趣的字符 "â€"编码为UTF-8,以便str_replace()函数正确解释它们.

或者你可以这样做:

ini_set('default_charset', 'utf-8');