删除特殊字符，逗号分隔文本，PHP

问题描述：

I got my text variable which is user-specified, normally, user should enter the tags which has to look following:

"food, community, relationship"

but if user type for example

"food;;[]'.'.;@$#community,,,-;,,,relationship"

the script should change it into:

"food, community, relationship".

How can I get this done?

我得到了用户指定的文本变量，通常，用户应输入必须符合以下内容的标记： p>

 “food，community，relationship”
  code>  pre> 
 
 但如果用户输入例如 p> 
  
 
  “食品;; []; @ $＃社区,,, ''  - ; ,,,关系” 
 代码>  PRE> 
 
  脚本应该将其更改为： p> 
 
 
 “food，community，relationship”。
  code>  pre> 
 
 我怎样才能获得 这样做了吗？ p> 
  div>

答

how about:

$str = "-----music,,,,,,,,games;'235@#%@#%media";
$arr = preg_split("/\W+/", $str, -1, PREG_SPLIT_NO_EMPTY);
$str = implode(', ', $arr);
echo $str,"
";

output:

music, games, 235, media

You could adapt the \W to which characters you need to keep.

答

You could replace everything that isnt alphanumeric, as such:

preg_split('/\W+/','',$input);

will output

Array ( [0] => food [1] => community [2] => relationship [3] => 1123123123 )

Edit: fixed regex

答

You could use something like this:

$content = preg_replace("/[a-zA-Z,]/", "", $content);
$content = str_replace(",,", ",", $content);
$content = str_replace(",", " ,", $content);

删除特殊字符，逗号分隔文本，PHP

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