faster str_replace()

[pastet89]

Hi!
I am using a str_replace ($Array1, $array2, $str); to translate a page. Every array is contained of approximatelly 5000 words, so the script is loading very slow.
The page is not so small, but the strings, which are to be translated are just 4 or 5 words. I wanna ask you:
Which will be faster:
1) translate ONCE the whole page like what I am doing currently (run the str_replace ince, but in $str put the whole page)
2) run ($Array1, $array2, $str); about 5 times, but in the $str put not the whole page, but only a word
😕😕😕:

[NogDog]

My gut instinct is that a single pass would be a little faster as there would presumably be less processing overhead, but the only way to be sure is to set up some timing tests and find out.

Also, depending on how dynamic this text is, maybe you could look into some way of caching the results so that subsequent request for the same text in the same language do not require running the same processing over again.