Question

I’m trying to implement a call to openssl_encrypt on my client’s web server and I am getting a fatal error Unknown function: openssl_encrypt(). I thought requirement was PHP 5.3.0 and above? By the look of the phpinfo() dump the server is running 5.3.3.

What gives?

Answer 1

To use the openssl_ functions, you have to a) have OpenSSL installed, and b) build PHP with OpenSSL support. See the PHP OpenSSL docs.

To use PHP’s OpenSSL support you must also compile PHP --with-openssl[=DIR]