Friday 14 March 2014

Parallels Plesk Panel stops working after Zend Optimizer installation

Parallels Plesk Panel stops working after the installation of Zend Optimizer.


Cause


The reason for the problem is that Zend sets a path to the php.ini file in the registry:


HKEY_LOCAL_MACHINE\SOFTWARE\PHP\IniFilePath=C:\WINDOWS

Therefore, all .php scripts on the server start using this setting and use the C:\WINDOWS\php.ini file for PHP configuration.


Resolution


To fix this problem , the following key needs to be removed:


  • On x86 servers – HKEY_LOCAL_MACHINE\SOFTWARE\php\IniFilePath

  • On x64 servers – HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\PHP\IniFilePath

Then, all .php scripts will use the correct .ini files.


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