QUESTION 16

____is the shortcut operator for concatenation.

		.= (dot equal)
		+= (plus equal)

QUESTION 17

\t is the escape sequence for a tab.

True

False

QUESTION 18

Which of the following are true of strpos($str1, $item)? More than one answer is correct.

		it finds the position of the first occurrence of $str1 in the $item string and returns the position of where where the $str1 is found.
		it finds the position of the first occurrence of the $item string in $str1 and returns the position of where where the $item is found.
		it finds the position of the first occurrence of $str1 in the $item string and returns the position of where where the $str1 is found.
		the default starting position is positions

QUESTION 19

A variable's scope can be either _____ or ____. Choose 2 answers.

		universal
		Global
		local
		intrinsic

QUESTION 20

"What does this code output?

$x = array("tic", "tac", "toe"); echo implode(", ", $x);

		"tic, tac, toe"
		"tictactoe"
		"tic tac toe"
		nothing
		"tic,tac,toe"

QUESTION 21

What does the variable $y hold?

$x = "person5@xyz.com"; $m = "zyx.org"; $y = substr_replace($x, $m, 8);

		person5@zyx.com
		person5@xyz.comzyx.org
		person5zyx.org
		person5@zyx.org

QUESTION 22

A return statement returns a value to the statement that called the function.

True

False

QUESTION 23

"If you use a local variable outside the function in which it is declared, ____."

		you'll get an error
		it will always have the value NULL
		you'll get a warning
		it is the same as using a global variable

QUESTION 24

The lines of code that make up a function itself are called the function definition.

True

False

QUESTION 25

What does the variable $y hold after this code runs?

$x = "person5@xyz.com"; $m = "org"; $y = substr_replace($x, $m, 12);

		person5@xyz.org
		person5@org
		person5@xyz..org
		person5@xyorg

QUESTION 26

The ____ function returns number of characters in a string.

		length()
		strlen()
		len()
		None of the other answer are correct

QUESTION 27

What does the variable $y hold?

$x = "Betelgeuse not Beetlejuice"; $y = substr_count($x, "et");

		0
		2
		3
		1
		-1