To use PHP's OpenSSL support you must also compile PHP --with-openssl[=DIR].
Note:
Note to Win32 Users
In order for this extension to work, there are
DLL files that must be available to the Windows
system PATH. For information on how to do this, see the
FAQ entitled "How do I add my PHP directory to the PATH
on Windows". Although copying DLL
files from the PHP folder into the Windows system directory also works
(because the system directory is by default in the system's
PATH), this is not recommended.
This extension requires the following files to be in the
PATH:libeay32.dll
Additionally, if you are planning to use the key generation and certificate
signing functions, you will need to install a valid
openssl.cnf file on your system.
As of PHP 4.3.0, we include a sample configuration file
in our win32 binary distributions.
PHP 4.3.x and 4.4.x has the file in the
openssl directory.
PHP 5.x and 6.x has the file in the
extras/openssl directory.
If you are either using PHP 4.2.x or missing the file, you can obtain it from
» the OpenSSL binaries page
or by downloading a recent PHP release.
Be aware that Windows Explorer hides the .cnf extension
by default and says the file Type is SpeedDial.
PHP will search for the openssl.cnf using the
following logic:
the OPENSSL_CONF environmental variable, if
set, will be used as the path (including filename) of the configuration
file.
the SSLEAY_CONF environmental variable, if
set, will be used as the path (including filename) of the configuration
file.
The file openssl.cnf will be assumed to be
found in the default certificate area, as configured at the time that
the openssl DLL was compiled. This is usually means that the default
filename is c:\usr\local\ssl\openssl.cnf.
In your installation, you need to decide whether to install the
configuration file at c:\usr\local\ssl\openssl.cnf or
whether to install it someplace else and use environmental variables
(possibly on a per-virtual-host basis) to locate the configuration file.
Note that it is possible to override the default path from the script using
the configargs
of the functions that require a
configuration file.