php自定义函数替换超长文本中的特殊字符

function unhtml($content){
$content=htmlspecialchars($content);
$content=str_replace(chr(13),"
",$content);
$content=str_replace(chr(32),"
",$content);
$content=str_replace("[_["," $content=str_relace(")_)",">",$content);
$content=str_replace("|_|","",$content);
rerurn trim($content);

}

摘自 ms.元