php中我的加密代码出错

请问我的代码有什么问题？该代码用于加密给定字符串。它的加密功能非常好，但是当回显加密值时，它会向其添加数字。代码如下：

$keys=BB94TU1LSLGPKNU； $encrypt=数组； //这包含我用于加密的密钥/值对 （a）f=>l，f=>l，g，g，g，g，g，g，g，g，h=>n，g，g，g，h=>n，i，i=>o，j=>p，i，i，p，p，p，p，p，p，b=>p，b=>g，b，p，b=>g，b，p，p，p，p，p，b，p，p，p，p，p，p，p，k=>p，p，p，p，c，p，p，p，p，p，p，p，p，p，p，p，p，p，p，p，p，p，p=>p，p，p，p，p，b，p，p，p，b，p，p，p，p，p，p，p，p，b，b=>p，b，p，p，p，p，p，p，p，b，p，p，p，p，p，q，l=>r，m=>s，n=>t，o=>u，p=>v，q=>w，r=>x，s=>y，t=>z，u=>a，v=>b，w=>c，x=>d，y=>e，z=>f，0=>2,1=>4,2=>6,3=>8,4=>0,5=>9,6=>7,7=>5,8=>3,9=>1； 对于$i=0$i$letter{ 如果$keys[$i]==$key{ //在$encrypt数组中追加每个的值 数组\u push$encrypt，$letter； } } } } $encryptedValue=； foreach$加密为$加密{ $encryptedValue.=$encrypted； echo$encryptedValue； } 它打印：

H2h210z2A24R2Y2Y2R2m2V2Q2T2a2

而不是：

Hh10zA4RYYRmVQTa

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在任何情况下，尝试使用$i而不是仅使用名称来获取匹配值都过于复杂。str_分割得到一个字符数组，然后只需$arrayEncrypt[$value]即可。要撤消，可以使用数组翻转

使您成为一个很好的加密和解密函数。享受

<?php
// 1 to encrypt
// 2 to decrypt
function encdec($do, $keys){
    $arrayEncrypt = array("a"=>"g","b"=>"h","c"=>"i","d"=>"j","e"=>"k","f"=>"l","g"=>"m","h"=>"n","i"=>"o","j"=>"p","k"=>"q","l"=>"r", "m"=>"s","n"=>"t","o"=>"u","p"=>"v","q"=>"w","r"=>"x","s"=>"y","t"=>"z","u"=>"a","v"=>"b","w"=>"c","x"=>"d","y"=>"e","z"=>"f","A"=>"G","B"=>"H","C"=>"I","D"=>"J","E"=>"K","F"=>"L","G"=>"M","H"=>"N","I"=>"O","J"=>"P","K"=>"Q","L"=>"R","M"=>"S","N"=>"T","O"=>"U","P"=>"V","Q"=>"W","R"=>"X","S"=>"Y","T"=>"Z","U"=>"A","V"=>"B","W"=>"C","X"=>"D","Y"=>"E","Z"=>"F","0"=>"2","1"=>"4","2"=>"6","3"=>"8","4"=>"0","5"=>"9","6"=>"7","7"=>"5","8"=>"3","9"=>"1");

    if ($do==2){
        $arrayEncrypt=array_flip($arrayEncrypt);
    }

    $chars = str_split($keys);
    $encryptedValue="";

    foreach($chars as $char=>$value){
        $encryptedValue .= $arrayEncrypt[$value];
    }

    return $encryptedValue;
}

echo "Encrypted key: ".encdec(1,"Bb94tU1LSSLgPKNu")."<br />";
echo "Decrypted key: ".encdec(2,"Hh10zA4RYYRmVQTa")."<br />";

?>

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这个代码甚至不起作用。除了缺少分号和执行@$encryptedValue=…，当我更正所有分号时，不会产生任何输出。请不要对非js、css或html代码使用代码段功能。@Enstage我已粘贴了完整的代码并更正了您提到的那一行。你现在可以检查一下吗？@Daedalus下次我会尽量不做这种方法是加密，就像骰子是随机数生成一样。它奏效了。谢谢你，帕特里克。我只是PHP的初学者。我从这个答案中学到了一些新东西