Please explain what is so confusing in it?

I think the file ist too big with all comments and 700 lines. You can?t see easy what is comment an where are the real parameter.
Exclude the long comments in the manual and only one line short description to php.ini.

Like this.

*/
$cfgConfirm               = TRUE;   // confirm 'DROP TABLE' & 'DROP DATABASE'
$cfgPersistentConnections = FALSE;  // use persistent connections to MySQL database
$cfgShowBlob              = FALSE;  // display blob field contents in browse mode
$cfgMaxRows               = 30;     // maximum number of rows to display in browse mode
$cfgOrder                 = 'ASC';  // default for 'ORDER BY' clause (valid
                                    // values are 'ASC', 'DESC' or 'SMART' -ie
                                    // descending order for fields of type
                                    // TIME, DATE, DATETIME & TIMESTAMP,
                                    // ascending order else-)
$cfgOBGzip 		          = TRUE;   // GZIP output buffering
$cfgGZipDump              = TRUE;   // Allow the use of gzip/bzip compression
$cfgBZipDump              = TRUE;   // for dump files

This has been done quite many times now. Current ones are quite easy to read.