Installation

Um Openssl mit PHP nutzen zu können, müssen Sie PHP mit der Option --with-openssl[=DIR] kompilieren.

Die OpenSSL Bibliothek stellt einige weitere Bedingungen, um zur Laufzeit korrekt funktionieren zu können. Insbesondere benötigt OpenSLL Zugang zu einer Quelle für zufällige oder pseudo-zufällige Zahlen. Auf Unix und Unix-ähnlichen Systemen bedeutet dies, dass OpenSSL Zugang zu /dev/urandom oder /dev/random haben sollte.

Hinweis: Hinweis für Win32 Benutzer

Diese Extension benötigt DLL-Dateien. die für Windows verfügbar seien müssen. Der FAQ-Eintrag " Wie füge ich unter Windows PATH mein PHP-Verzeichnis hinzu?" gibt hierzu weitere Informationen. Obwohl ein einfaches Kopieren der DLL-Dateien vom PHP-Verzeichnis in den Windows-Systemordner auch funktioniert (weil der Systemordner immer im PATH enthalten ist), ist dieses Vorgehen nicht empfehlenswert. Diese Extension benötigt die folgenden Dateien im PATH: libeay32.dll

Wenn Sie vorhaben, Schlüssel erzeugende und Zertifikate signierende Funktionen zu benutzen, müssen Sie eine gültige Konfigurationsdatei für OpenSSL, openssl.cnf, installieren. Ab PHP 4.3.0 fügen wir der win32 Binärdistribution eine Beispielkonfigurationsdatei bei. Für PHP 4.3.x und 4.4.x finden Sie die Datei im Verzeichnis openssl. Unter PHP 5.x und 6.x finden Sie die Datei im Verzeichnis extras/openssl. Falls Sie PHP 4.2.0 oder eine höhere Version benutzen und diese Datei in Ihrer Distribution fehlt, finden Sie sie auf der » OpenSSL-Binaries-Seite, oder Sie laden sich PHP 4.3.0 herunter und verwenden die in diesem Paket enthaltene Datei. Bitte beachten Sie daß der Windows Explorer die Endung .cnf standardmässig verbirgt und als Dateityp SpeedDial anzeigt.

PHP verwendet folgende Logik um die Konfigurationsdatei openssl.cnf zu finden:

  • Die Umgebungsvariable OPENSSL_CONF wird, falls gesetzt, als Pfad zur Konfigurationsdatei benutzt (den Dateinamen mit eingeschlossen).
  • Die Umgebungsvariable SSLEAY_CONF wird, falls gesetzt, als Pfad zur Konfigurationsdatei benutzt (den Dateinamen mit eingeschlossen).
  • PHP sucht die Datei openssl.cnf an dem Ort, der bei der Kompilierung der openssl DLL als Speicherort für Zertifikate angegeben wurde. Üblicherweise ist der Standarddateiname c:\usr\local\ssl\openssl.cnf.

Damit diese Datei gefunden wird, müsssen Sie sich bei der Installation entscheiden, entweder die Konfigurationsdatei unter c:\usr\local\ssl\openssl.cnf anzulegen, oder diese Datei an einem anderen Ort abzulegen und Umgebungsvariablen zu benutzen (möglicherweise auf Basis verschiedener Virtual-Host Konfigurationen). Bei Funktionen, die diese Konfigurationsdatei benötigen, ist es möglich, durch die Angabe des Parameters configargs den Standardpfad zu dieser Datei in einem Skript zu überschreiben.

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User Contributed Notes 4 notes

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mtudor AT icefusion remove me DOT co uk
5 years ago
SYMPTOMS AND SETUP
------------------

For anyone having problems enabling the PHP openssl extension on WINDOWS.

I uncommented:  extension=php_openssl.dll  and installed the latest versions of ssleay.dll and libeay.dll in <windows>\system32.

When I restarted my web server and examined phpinfo(), there was no "openssl" headed section (although there were references to openssl in other sections).

I also found this error in my web server logs (<apache dir>/logs/ssl.log and <apache dir>/logs/access.log).

PHP Warning:  PHP Startup: Unable to load dynamic library 'C:\\Program Files\\PHP\\ext\\php_openssl.dll' - The operating system cannot run %1.\r\n in Unknown on line 0

I have PHP 5.2.6 running on Apache 2.2.3 for Windows.

CAUSE
-----

This was caused by PHP picking up the WRONG VERSIONS of libeay.dll and ssleay.dll, which were present in multiple locations on my computer.

When any application attempts to use a dll file in windows, the system searches for this file using the following order:
   1. The directory from which the application loaded.
   2. The windows\system32 directory.
   3. The windows\system directory.
   4. The windows directory.
   5. The current directory.
   6. The directories that are listed in the PATH environment variable.

   (http://msdn.microsoft.com/en-us/library/ms682586.aspx)

For PHP running under Apache, the application directory is <apache dir>\bin and NOT <php dir>.  PHP was finding OUT OF DATE versions of libeay.dll and ssleay.dll in <apache dir>\bin (probably installed when I enabled SSL support in my web server).  Because of this, the latest versions in windows\system32 were never reached.

NOTE: Although my problem was caused by an Apache2 specific configuration, I can imagine others might face this problem if, say, they install the openssl dlls in the PHP directory and add this directory to the PATH.  I haven't checked it but I would imagine if another directory in the path contains outdated openssl dlls and this is listed before the PHP directory, a similar situation would occur.

SOLUTION
--------

Either replace the dlls in the first location on the search order, or, as I did, you can install the latest openssl dlls in the the windows system32 directory and just rename to .old the ssleay.dll and libeay.dll files in the search order locations before windows\system32.

Hope that helps others who might be stuck with this.

Mark.
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Alan
2 years ago
Having recently installed Apache2.2 with PHP 5.2.17 on my Windows 7 development machine, I want to pass along my findings about how to set things up to load the correct versions of the OpenSSL DLLs. Many people have posted elsewhere about the "DLL Hell" that results if the a wrong version is loaded.

First, install Apache 2.2 and check its operation, then download the Windows binaries for PHP from http://windows.php.net/download/. Note that according to the sidebar on that page the recommended version of PHP for use with Apache2 is currently 5.2.17, even though it is back level. Plus, this version comes with all the DLLs you need to use OpenSSL -- no need to recompile as the old PHP man page suggests.

Having verified the PHP installation, turn on the OpenSSL support by uncommenting the line

extension=php_openssl.dll

in php.ini, which you will find in the PHP directory (I'll assume you made that c:/PHP). Next check the location of php_openssl.dll, which you should find in c:/PHP/ext. Also in php.ini find the key extension_dir, and change its value to c:/php/ext. Next, put this location on the end of your PATH (there's no need to reboot).

At this point, when you start Apache it will attempt to load php_openssl.dll, but if your setup is anything like mine you will see an error. I prefer to start Apache manually, and the error appears in a dialog box: "The ordinal 4114 could not be located in the dynamic link library LIBEAY32.dll". (I'm not sure whether you would get this message if you started Apache as a service). The Apache log also contains an error message saying that php_openssl.dll cannot be loaded, though that message doesn't name libeay32.dll. Welcome to DLL Hell.

Libeay32.dll enters the picture because php_openssl.dll depends on it (and also on ssleay32.dll). What I think happens is that Apache first tries to load php_openssl.dll programmatically from the path specified by the extension_dir key. But then, the loading of the so-called dependent DLLs is left to Windows' default mechanism. If Windows finds an incompatible version of a dependent DLL, you get the error.

So clearly the fix is to ensure that the correct version of libeay32.dll is loaded. On my machine, at least three other processes have loaded various versions of this same DLL. They include the Mozy backup client, Windows Explorer (because Mozy installs support in Explorer) and the OpenOffice suite. My machine is quite different in this respect from a dedicated server on which one probably wants as few extraneous processes as possible.  Presumably on a server one can follow advice that suggests copying the dlls to the system32 directory, for example. But I'm not about to mess with my other programs by making system-wide changes.

So what to do? I didn't find the available information on how Windows searches for DLLs to be very useful, mainly because I didn't understand it. But it does say that the first place Windows looks is "The directory from which the application loaded."

To cut to the chase, after a lot of experimentation I came to a key realization -- "the application" is APACHE, not PHP. So I copied libeay32.dll to the Apache2.2/bin directory. Problem solved. No error messages and running phpinfo confirms that OpenSSL is present and enabled.

Good luck, and stay out of DLL Hell.
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Kathryn Sharron at CSUN
5 years ago
I followed all of the instructions above to install on Windows and *still* couldn't get "OpenSSL support     enabled" from phpinfo(). The answer turned out to be in my php.ini file:

; Directory in which the loadable extensions (modules) reside.
extension_dir = "./"

I found php_openssl.dll in my /ext directory. I copied it up to the same directory as php.ini, but I expect that editing the extension_dir value would work too.
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Fernando rubio
2 years ago
OpenSSL and IIS

Open php.ini
uncomment the following:
extension=php_openssl.dll

Make sure you have config the following section pointing to your php install directory (in my case is located in a second partition at e:\php) (very recommended practice)

; Directory in which the loadable extensions (modules) reside.
extension_dir = "e:/php/ext"

Add your php directory to the PATH variable

start>run>type cmd
on windows console type:
set PATH=%PATH%;e:\php
(remember replace e:\php with YOUR directory)
(note that using %path% is the same as var+=value, so the directory will be appended at the end of the variable)

php5 come with all the dll in the zip package so if you add the php directory to the path variable, you don't need to move anything to your windows system directory (very safe for later updates, because you just replace the content of your php directory)

After all these step you ready.. but of course you need to restart your IIS to apply changes, so

start>run>inetsrv/iis.msc
right click on your computer
all task>restart IIS

done!
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