PHP Cryptographic Data manipulation classes

Class phpmcrypt{/* operation handle */private $crypt = null;/* generated key */private $key = null;/* initial vector */private $iv = null;/* supported maximum key */p Rivate $ks = null;/* Whether the data type can accept */private $accept = false; False can not accept true to accept/* whether serialization */private $serialize = False is required; false  does not need to serialize true to require serialization     public function __construct ($secretKey = '!@#$%^ ') {    /* open cryptographic algorithms and patterns */     $this->crypt = Mcrypt_module_open (' TripleDES ', ' ', ' nofb ', ');    /* creates the initial vector and detects the key length. */     $this->iv = Mcrypt_create_iv (mcrypt_enc_get_iv_size ($this->crypt), Mcrypt_rand);     /* get the longest key supported */     $this->ks = mcrypt_enc_get_key_size ($this->crypt);   & nbsp;/* generate key */     $this->key = substr (MD5 ($secretKey), 0, $this->ks);} Whether the/*** data type can be accepted and serialized * $data int|string data to be encrypted *return boolean*/private function acceptandserialize ($data) {     $type = GetType ($data);    switch ($type) {&NBsp;       case ' string ':        case ' integer ':        case ' float ':        case ' double ':     & nbsp       $this->accept = true;             $this Serialize = false;        break;        case ' array ':         case ' object ':             $this- >accept = true;             $this->serialize = true;        break;        default:              $this->accept = false;             $this Serialize = false;    }}/*** Encrypted data * $data mixed data to be encrypted *return strIng|boolean*/public function Encrypt ($data) {     $this->acceptandserialize ($data);    if (Empty ($data) | | ($this->accept = = False)) {        return false;    }    //serialization      if ($this->serialize) {         $data = serialize ($data);    }     /* Initialize encryption */    mcrypt_generic_init ($this->crypt, $this->key, $this->iv);     /* Encrypted data */     $encrypt = mcrypt_generic ($this->crypt, $data);    /* string to MIME BASE64 encoding. This encoding allows Chinese text or images to be transferred smoothly on the network */     $encrypt = Base64_encode ($encrypt);    if ($this- Serialize) {         $encrypt. = ' | '. $this->serialize;    }    /* end encryption, perform cleanup */    mcrypt_generic_ Deinit ($this->crypt);    return $encrypt;} /*** Decryption NumberAccording to * $data string to decrypt data *return mixed*/public function decrypt ($data) {    if (Empty ($data)  ) { & nbsp      return false;    }    /* determine if serialization */    if ( Strpos ($data, ' | ')) {         $tempData = explode (' | ', $data);         $data = $ tempdata[0];         $this->serialize = $tempData [1];    }     /* initial dissolve */    mcrypt_generic_init ($this->crypt, $this->key, $this->iv);     /* decryption Data */     $data = Base64_decode ($data);     $decrypt = Mdecrypt_generic ($ This->crypt, $data);    /* serialization */    if ($this->serialize) {          $decrypt = unserialize ($decrypt);    }    /* end encryption, perform cleanup work */     mcrypt_generic_deinit ($this->crypt);     return $decrypt;} Public Function __destruct () {    /* Close the cryptographic module */    mcrypt_module_close ($this->crypt);}} Int|float| string
$oPHPMcrypt = new Phpmcrypt (123); $encrypt = ' China * Shanghai -021 '; $encrypt = $oPHPMcrypt->encrypt ($encrypt); Echo $encrypt; Echo '
'; $decrypt = $oPHPMcrypt->decrypt ($encrypt); echo $decrypt;//Array | object $ophpmcrypt = new Phpmcrypt (123); $encrypt = Array ( ' Name ' = ' Zhang San ', ' age ' =>100); $encrypt = $oPHPMcrypt->encrypt ($encrypt); echo $encrypt; Echo '
'; $decrypt = $oPHPMcrypt->decrypt ($encrypt);p rint_r ($decrypt);


                                                
The above describes the PHP encryption data operation class, including the aspects of the content, I hope that the PHP tutorial interested in a friend helpful.
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