PHP to achieve AES encryption class sharing

Source: Internet
Author: User
Tags decrypt rtrim

  This article mainly introduces the AES encryption classes implemented in PHP, the code has the use of methods, the need for friends can refer to the following

  Code as follows: <?php   class Aesmcrypt {   public $iv = null;  public $key = null;  public $bit = 128;  private $cipher;    public function __construct ($bit, $key, $iv, $mode) {  If empty ($bit) | | empty ($key) | | empty ($IV) | | Mpty ($mode))   return NULL;     $this->bit = $bit;   $this->key = $key;   $this->iv = $iv;   $this->mode = $mode;     switch ($this->bit) {   case: $this->cipher = mcrypt_rijndael_192; break;    c ASE 256: $this->cipher = mcrypt_rijndael_256; Break    default: $this->cipher = mcrypt_rijndael_128;  }     switch ($this->mode) {   case ' ECB ': $this->mode = MCRYPT_MODE_ECB; break;   &N Bsp;case ' CFB ': $this->mode = MCRYPT_MODE_CFB; Break    case ' ofb ': $this->mode = MCRYPT_MODE_OFB; Break    case ' nofb ': $this->mode = MCRYPT_MODE_NOFB; Break    default: $this->mode = MCRYPT_MODE_CBC;  } &nbsp    public function Encrypt ($data) {  $data = Base64_encode (Mcrypt_encrypt ($this->ciph Er, $this->key, $data, $this->mode, $this->iv));   return $data; &NBSP}    public function decrypt ($data) {  $data = Mcrypt_decrypt ($this->cipher, $this->key, base 64_decode ($data), $this->mode, $this->iv);   $data = RTrim (RTrim ($data), "x00." x1f ");   return $data; &NBSP}  }  //use method $aes = new Aesmcrypt ($bit = 128, $key = ' abcdef1234567890 ', $iv = ' 0987654321FEDCBA ', $mode = ' CBC '); $c = $aes->encrypt (' '); Var_dump ($aes->decrypt ($c));    
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