支付宝支付php的demo或sdk报错 Warning: openssl_sign() [function.openssl-sign]: Unknown signature algorithm
if ("RSA2" == $signType) {
openssl_sign($data, $sign, $res,OPENSSL_ALGO_SHA256);
} else {
openssl_sign($data, $sign, $res);
}
解决办法就是把 OPENSSL_ALGO_SHA256 改成 SHA256
if ("RSA2" == $signType) {
openssl_sign($data, $sign, $res,SHA256);
} else {
openssl_sign($data, $sign, $res);
}https://blog.csdn.net/qq_33323469/article/details/96440030