openssl_decrypt Decrypts data &reftitle.description; stringopenssl_decrypt stringdata stringmethod stringkey intoptions0 stringiv"" stringtag"" stringaad"" Takes a raw or base64 encoded string and decrypts it using a given method and key. &reftitle.parameters; data The encrypted message to be decrypted. method The cipher method. For a list of available cipher methods, use openssl_get_cipher_methods. key The key. options options can be one of OPENSSL_RAW_DATA, OPENSSL_ZERO_PADDING. iv A non-NULL Initialization Vector. tag The authentication tag in AEAD cipher mode. If it is incorrect, the authentication fails and the function returns &false;. aad Additional authentication data. &reftitle.returnvalues; The decrypted string on success&return.falseforfailure;. &reftitle.errors; Emits an E_WARNING level error if an unknown cipher algorithm is passed via the method parameter. Emits an E_WARNING level error if an empty value is passed in via the iv parameter. &reftitle.changelog; &Version; &Description; 7.1.0 The tag and aad parameters were added. 5.4.0 The raw_output was changed to options. 5.3.3 The iv parameter was added. &reftitle.seealso; openssl_encrypt