function jiami($str){

$tt = "";//替换后的信息

$ss = "";//替换回来的信息

$img = $str;

$str = "QAZPLWSXEDCRFVTGBYHNUJMIKO";

//echo utf8_strlen($img)."字符长度
";

for($i=0;$i

$tt .= substr($str, mt_rand(0, strlen($str) - 1), 1);

}

$ss = $tt;

$tt = str_replace("Q","∵",$tt);

$tt = str_replace("A","∴",$tt);

$tt = str_replace("Z","┐",$tt);

$tt = str_replace("W","└",$tt);

$tt = str_replace("S","┘",$tt);

$tt = str_replace("X","├",$tt);

$tt = str_replace("E","┤",$tt);

$tt = str_replace("D","┬",$tt);

$tt = str_replace("C","┴",$tt);

$tt = str_replace("R","┼",$tt);

$tt = str_replace("F","「",$tt);

$tt = str_replace("V","」",$tt);

$tt = str_replace("T","≮",$tt);

$tt = str_replace("G","≯",$tt);

$tt = str_replace("B","∈",$tt);

$tt = str_replace("Y","∪",$tt);

$tt = str_replace("H","∧",$tt);

$tt = str_replace("N","∨",$tt);

$tt = str_replace("U","∠",$tt);

$tt = str_replace("J","×",$tt);

$tt = str_replace("M","÷",$tt);

$tt = str_replace("I","＋",$tt);

$tt = str_replace("K","±",$tt);

$tt = str_replace("O","☇",$tt);

$tt = str_replace("L","☈",$tt);

$tt = str_replace("P","☄",$tt);

$z = array("miwen"=>$tt,"zimu"=>$ss,"yuanwen"=>$img);

return $z;

}

function utf8_strlen($string = null) {

// 将字符串分解为单元

preg_match_all("/./us", $string, $match);

// 返回单元个数

return count($match[0]);

}

?>

返回数组 miwen zimu yuanwen 三个元素