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请问一个字符串分割有关问题

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Release: 2016-06-13 12:56:23
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请教一个字符串分割问题
  我有一个字符串,内容可能包含"+", "+", "-", "-", " ", " ", ".", ".", ":", ":"这些字符,我将他们进行替换

<br />
$vowels = array("+", "+", "-", "-", " ", " ", ".", ".", ":", ":");<br />
$file_name = str_replace($vowels, "+", $str);<br />
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结果出现了像"试题+++小赵+动漫达人组+swf"这样的字符,但我需要里面的汉字部分,请教如何进行分割,或者从一开始是否就不适用我的那个替换方式,谢谢~

php 字符串分割
------解决方案--------------------
这不是对的吗?如果你不需要+ 则 str_replace($vowels, "", $str);
还是说连swf这个也不要? 
------解决方案--------------------
$arr=preg_split('/[+]+/', $file_name);
print_r($arr);
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