How to configure PEAR for Zend Server Community Edition on Windows 7

I decided to try running Zend Server CE (PHP v5.3) for my local development environment on my Windows 7 (64-bit) machine.

After discovering that I needed to explicitly choose to install MySQL and phpMyAdmin (simply fixed by running the installer again and modifying the installation), I found that the PEAR libraries some of my existing code relied on, was missing.

After a bit of research, I learned that I needed to run the PEAR installer:

C:\Program Files (x86)\Zend\ZendServer\bin\go-pear.bat

… however, this resulted in some very confusing error messages:

phar "C:\Program Files (x86)\Zend\ZendServer\bin\PEAR\go-pear.phar" does not have a signature
PHP Warning:  require_once(phar://go-pear.phar/index.php): failed to open stream: phar error: 
invalid url or non-existent phar "phar://go-pear.phar/index.php" in 
C:\Program Files (x86)\Zend\ZendServer\bin\PEAR\go-pear.phar on line 1236

After a bit more Googling, I finally came across a suggestion on the PEAR blog: PHP 5.3 Windows and PEAR (go-pear.phar) | PEAR Blog

I ran the following command from the PEAR directory, which worked:

C:\Program Files (x86)\Zend\ZendServer\bin\PEAR>php -d phar.require_hash=0 go-pear.phar

… all that was then required was to follow the instructions (I needed to enter the path to the CLI php.exe, which is C:\Program Files (x86)\Zend\ZendServer\bin), and it worked.