Q&A

Q1:	Are there any functions for manipulating arrays that we have not covered here?
A1:	PHP supports many array functions. You can find all these in the official PHP manual at http://www.php.net/manual/ref.array.php.
Q2:	I can discover the number of elements in an array, so should I use a for statement to loop through an array?
A2:	You should be cautious of this technique. If you are not absolutely sure that the array you are reading is indexed by consecutively numbered keys, you might get unexpected results.