我正在尝试将以下openssl命令转换为openssl php函数。 openssl cmd命令执行并成功验证，但是我尝试使用php函数失败（openssl_pkcs7_verify）：
openssl smime -verify -in encrypted.p7 -inform pem -noverify > decrypted.txt
encrypted.p7文件使用openssl -nodetach选项签名，其内容为：
-----BEGIN PKCS7-----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-----END PKCS7-----
参考：http://qistoph.blogspot.com/2013/04/pkcs7-and-openssl.html