php 利用正则表达式清理字符串删除、替换不需要字符

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/**
 * 从字符串删除、替换不需要的字符
 *
 * @param 
 * @author php教程 www.idcnote.com
 **/
function setDescriptionString($inputString=""){
     $replacedWords = array("…","‘","ó","<ul>","<li>","–","…"," ",""","&","“","”","<span>","</span>", "<p>","</p>", "/",":", "<", ">","<strong>", "</strong>", "<b>", "</b>", "<i>","</i>","span","strong","class","+","-","=","'","’");
     $filteredString = str_replace($replacedWords, "", $inputString).".";
     return $filteredString;
}


/***   代码来自php教程（www.idcnote.com）   ***/

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