php使用mycrpt加解密

$str = "我是一只来自北方的狼"; //加密内容
$key = "key:11211"; //密钥的长度要为8 
$cipher = MCRYPT_DES; //密码类型 有19种供选择
$modes = MCRYPT_MODE_ECB; //密码模式 8种供选择
$iv = mcrypt_create_iv(mcrypt_get_iv_size($cipher,$modes),MCRYPT_DEV_URANDOM);//初始化向量
echo "加密明文:".$str."<p>";
$str_encrypt = mcrypt_encrypt($cipher,$key,$str,$modes,$iv); //加密函数
echo "加密密文:".$str_encrypt." <p>";
$str_decrypt = mcrypt_decrypt($cipher,$key,$str_encrypt,$modes,$iv); //解密函数
echo "还原:".$str_decrypt;

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转载自blog.csdn.net/dw5235/article/details/81394815