Functions will only automaticly be completed, if you add an underscore (_) to them (see IMPORTANT.txt for further information).

Comments on the different acp-files:

 php5.eng.acp
  strpos_ + [space] =(extends to)> "strpos(string haystack, mixed needle [, int offset]) //Find position of first occurrence of a string"
  extends to syntax of the function, with English annotation.

 php5.ger.acp
  strpos_ + [space] =(extends to)> "strpos(string haystack, mixed needle [, int offset]) //Durchsucht einen String nach einem Zeichen aus einer Gruppe von Zeichen.
  extends to syntax of the function, with German annotation (if available on php.net).

 php5.uni.acp
  strpos_ + [space] =(extends to)> "strpos(string haystack, mixed needle [, int offset])
  extends to syntax of the function, without annotation.

 Each file includes acp for: if, while, for, switch, do, class, function, struct, try, ini and tags (ini and tags for php-tags).
 Example:
  if + [space] =(extends to)> if() {
                              }
 (cursor placed after "if").