[Come2Daddy]

Actually this is the first time I hear of this function, however I look for it in the API documentation, and I found this:

 string   construct_phrase  (string 0, mixed 1, mixed 2)

    * string 0: Text of the phrase
    * mixed 1: First variable to be inserted
    * mixed 2: Nth variable to be inserted

so what's text of the phrase? is it the key of the phrase array??
and other variables, are they translations or what?

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if there is a good tutorial for this or a good & simple modification use this please provide it