Using SSL socket in PHP under Windows


If you try to open a socket (fsockopen, pfsockopen) with SSL in PHP 4.x under Windows, the operation might fail with the following message: Warning: fsockopen(): no SSL support in this build

This problem occurs even if phpinfo() shows openssl as loaded and the command php -m shows openssl as one of the loaded module.


To use SSL in sockets, PHP core must be compiled with OpenSSL, which is not the case with the binary available at On the other hand, the openssl module only enables the OpenSSL functions (functions prefixed openssl_). According to the bug report linked below, “OpenSSL support enabled” that phpinfo() states just means that the openssl extension is available.


This problem has been identified and labeled “won’t fix” in the offical PHP distribution (details). You have the following options: