PHP RSA2 sign拼接谁教教我啊？
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[待解决问题]
今天和支付宝做对接，对方提供一份java的demo,php的demo也有，但是我拼接之后返回值是：{"alipay_eco_edu_campus_job_cancel_response":{"code":"40002","msg":"Invalid Arguments","sub_code":"isv.invalid-signature","sub_msg":"验签出错，sign值与sign_type参数指定的签名类型不一致：sign_type参数值为RSA2，您实际用的签名类型可能是RSA"},"sign":"l2e0zCcjqbvhHoso0ATwNZ9bD9rvbZpvpFVPpdxhfo0TSWLZPY5OlDf7N/9zOyMFtg9wO/NHrP82uwBSypGcI18isnpyQS+r7dfcPs3BprZ8w0ScynDccVhuDaM9OFvPWIkCmumtXRqsnvb54ePHfTKdkEBqdURuJP0vVJLNAioCurMNy6SDY0YIS 谁帮我解答一下呢？
