What is the value of $a in the following:

Which function inserts one or more elements to the beginning of an array?

Which network transports doesn’t PHP support?

What does this display? 1, 'b'=>2, 'c'=>3); echo key($x);

Which will split a string into an array with 3 elements?

Which function returns an item from the argument list?

Correct way to create two independent connections to MySQL in PHP?

Difference between $a == $b and $a === $b in PHP?

What will be the output?

Which method is used to check if an array is associative or numeric?

Which would trigger the browser's 'Save As' prompt?