Reference Guide

Blacklisting Files
Zend Server Reference Manual
If none of the alternatives (described above) are suitable, or if the file meets one of the criteria for
blacklisting a file, use the following procedure to create a blacklist file that contains the file names of the
files you do not want to be byte-code cached by Optimizer+.
To create a blacklist file:
1. Create a .txt file using a text editor.
2. Write a list of the file names to blacklist (i.e., ignored by the Optimizer+).
List each file name in a new line.
3. In Server Setup | Components, verify that the "Zend Optimizer+" component is set to
'On'.
4. Click the "Configure" link in the directives column to display the list of Optimizer+
directives.
5. Locate the directive: zend_optimizerplus.blacklist_filename and specify the full path to
the file location.
The files in the blacklist are now ignored by Optimizer+.
Optimizer+ Duplicate Functions Fix
In situations where certain functions were (or were not) defined, some PHP code produces different
opcodes, depending on the circumstances. This causes a discrepancy for the Optimizer+ in the situation
where the Optimizer+ caches one versionand a sequence of events arises that requires a different
function. If the discrepancy is not addressed, the script stops working and raises a "duplicate functions"
error.
To maintain proper performance in these and similar situations, activate the zend_optimizerplus.dups_fix
parameter. This parameter shuts down the Optimizer+ duplicate function check to prevent these errors
from occurring.
This parameter can be defined in Server Setup | Directives by searching for
zend_optimizerplus.dups_fix.
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