php 3des解密
$txt = openssl_decrypt(base64_decode($str),'DES-EDE3',$pass,OPENSSL_NO_PADDING);
$txt1= openssl_decrypt(base64_decode($str), 'des-ede3', $pass, OPENSSL_RAW_DATA);
$txt = openssl_decrypt(base64_decode($str),'DES-EDE3',$pass,OPENSSL_NO_PADDING);
$txt1= openssl_decrypt(base64_decode($str), 'des-ede3', $pass, OPENSSL_RAW_DATA);