Description:
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I think this should not be a parse error, this should work. It seems the concatenation of LOGIK_CONFIG_FILE to the string:

"<span class=\"error\"><strong></strong> couldn't be opened for reading.<br />Check file permissions.</span>" 

is causing the parse error.

Reproduce code:
---------------
define( "LOGIK_DIRECTORY", $_SERVER['DOCUMENT_ROOT'] . "/" );
define( "LOGIK_CONFIG_DIRECTORY", "config/" );
define( "LOGIK_CONFIG_FILE", LOGIK_DIRECTORY . LOGIK_CONFIG_DIRECTORY . "logikconfig.xml" );
define( "LOGIK_CONFIG_FILE_FOPEN_ERROR", 3 );

static $errors = array(
                     LOGIK_CONFIG_FILE_FOPEN_ERROR => "<span class=\"error\"><strong>" . LOGIK_CONFIG_FILE . "</strong> couldn't be opened for reading.<br />Check file permissions.</span>"
                     );

The above array() creation syntax is what throws the parse error.

Expected result:
----------------
This shouldn't be a parse error because it is valid string concatenation syntax.

Actual result:
--------------
PHP reprts the following error:

Parse error: parse error, unexpected '.', expecting ')'