Strings

Question 1

How would you “echo” and count the number of words in the string (“Hello World”)

Answer 1

echo str_word_count(“Hello World”);

Question 2

How would you “echo” search for the text “World” in the string “Hello World”

Answer 2

echo strpos(“Hello World”, “World”);

Question 3

What is the result of the following:

$x = “Hello World”;
echo strtoupper($x);

Answer 3

HELLO WORLD

Question 4

How would you echo the following variable to lower case:

$x = “Hello World”;

Answer 4

echo strtolower($x);

Question 5

How would you echo and replace “World” with “Dolly” in the following string:

$x = “Hello World”;

Answer 5

echo str_replace(“World”, “Dolly”, $x);

Question 6

echo and Reverse the following:

$x = “Hello World”;

Answer 6

echo strrev($x);

Question 7

Split $fruitString into an array using the “,” as the delimiter. Store the array in $fruitArray

$fruitString = “apple,banana,cherry”;

Answer 7

$fruitArray = explode(“,”, $fruitString);

Question 8

Concatenate the following 2 strings below ensuring a space between the words and store it in a variable $z (NOTE don’t use double quotes).

$x = “Hello”;
$y = “World”;

Answer 8

$z = $x . “ “ . $y;