转换带重音字符 | CSS-Tricks

例如，如果您想将字符串用作 URL 的一部分，但需要使其对这种用途安全。

function replace_accents($str) {
   $str = htmlentities($str, ENT_COMPAT, "UTF-8");
   $str = preg_replace('/&([a-zA-Z])(uml|acute|grave|circ|tilde);/','$1',$str);
   return html_entity_decode($str);
}

Jan-Marten de Boer

# 2011年12月18日

或者您只需使用 PHP 中已实现的功能 ><


$unsafe = 'Hello Daniël';
$safe = urlencode($unsafe);
$transfered = urldecode($_GET['data']);

Jan-Marten de Boer

评论永久链接# 2011年12月18日
通过 urlencode 获取的 $unsafe 值会为您提供以下内容：“Hello%20Dani%C3%ABl”
这些都是 URL 中的有效字符。它甚至适用于所谓的多字节字符，这些字符用于韩语、日语、普通话和类似语言。当某个调查系统开始截断评论时，我以这种方式发现了这一点。

JavaScript 等效项是 encodeURI / encodeURIComponent，要反转它，您可以使用 decodeURI / decodeURIComponent。
```
var response, safe, unsafe = 'Hello Daniël';
safe = encodeURIComponent(unsafe);
response = decodeURIComponent(ajaxResponse);
```
parmod

评论永久链接# 2015年2月26日

function replace_bishnoi($str) {
$str = htmlentities($str, ENT_COMPAT, “UTF-8”);
$str = preg_replace(‘/&([a-zA-Z])(uml|acute|grave|circ|tilde);/’,’$1′,$str);
return html_entity_decode($str);
}

Jan-Marten de Boer

# 2011年12月18日

反过来，当遇到编码字符时，您可能希望获取与带重音变体最相关的字符。例如：您想存储标题中包含 DJ Tiësto 的歌曲，但希望在脚本中创建文件名时将其显示为 DJ Tiesto。


function transform($title){
	// Support ASCII list characters in encoded format
	while(strpos($title,'&#')!==false){
		$pointer = strpos($title,'&#');
		$plength = 5;
		$first = substr($title,0,$pointer);
		$last = substr($title,$pointer+$plength);
		$pnr = substr($title,$pointer+2,3);
		$backstring = '';
		for($i=0;$i<3;$i++){
			if(!is_numeric($pnr[$i])){
				$backstring.=$pnr[$i];
				unset($pnr[$i]);				
			}
		}
		$last = $backstring.$last;
		$title = $first.htmlentities(chr($pnr)).$last;
	}
	
	$title = str_replace(
		array("ì","í","î","ï","ï","î","í","ì","ù"
,"ú","û","ü","ü","û","ú","ù","ç","ç","ì",
"í","î","ï","ë","ê","é","è","è",
"é","ê","ë","ë","à","á","â","ã","ä","å","à","á","â",
"ã","ä","å",".","!",",",":",";","'","\"","ù","ú","û",
"ü","ý","þ","ÿ","ù","ú","û","ü","ý",
"þ","ÿ"),
		array("i","i","i","i","i","i","i","i","u","u","u","u","u","u","u","u","c","c",
"i","i","i","i","e","e","e","e","e","e","e","e","e","a","a","a","a","a","a","a",
"a","a","a","a","a","","","","","","","","u","u","u","u","u","u","u","u","u","u",
"u","u","u","u"),
		$title
	);
	$title = str_replace(
		array('\\','/',':','"','*','?','','|','+','%'),
		'',
		$title
	);
	while(strpos($title,'  ')!==false){
		$title=str_replace('  ',' ',$title);
	}
	return $title;
}

Jan-Marten de Boer

评论永久链接# 2011年12月18日

由于它以我们不希望的方式进行编码，因此这里有一个指向源代码的链接：http://lievheid.nl/examples/decode_ascii/index.phps

Rodney Rehm

# 2011年12月19日

原始代码片段不起作用。htmlentities() 未涵盖的 Unicode 完全被忽略。如果您（安全地）想要将 UTF-8 字符串转换为字母数字以在 URL 中使用，请尝试使用 urlify()。

Julien

# 2012年4月13日

我做了这个

function replace_accents($str) {
$str = htmlentities($str);
$str = preg_replace(‘/&([a-zA-Z])(uml|acute|grave|circ|tilde|cedil|elig|ring|th|slash|zlig|horn);/’,’$1′,$str);
return html_entity_decode($str);
}

Julien

# 2012年4月13日

function replace_accents($str) { $str = htmlentities($str); $str = preg_replace('/&([a-zA-Z])(uml|acute|grave|circ|tilde|cedil|elig|ring|th|slash|zlig|horn);/','$1',$str); return html_entity_decode($str); }

Arnaud

# 2016年10月8日

谢谢！！

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