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                        Well, there were other factors in play there. htmlspecialchars was a
very early function. Back when PHP had less than 100 functions and the
function hashing mechanism was strlen(). In order to get a nice hash
distribution of function names across the various function name lengths
names were picked specifically to make them fit into a specific length
bucket. This was circa late 1994 when PHP was a tool just for my own
personal use and I wasn't too worried about not being able to remember
the few function names.
-Rasmus
                                 
        
Вот до чего доводит преждевременная оптимизация ;)
Слова не мальчика, но мужа.
:O