Echo vs print behavior in PHP - Interactive Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to output the string using echo.

PHP

<?php
[1] "Hello, world!";
?>

Drag options to blanks, or click blank then click option'

Aecho

Bprint

Cprintf

Dwrite

Attempts:

3 left

💡 Hint

Common Mistakes

Using print instead of echo here, which also works but is different.

The echo statement outputs the string directly.

2fill in blank

medium

Complete the code to output the string using print.

PHP

<?php
[1] "Hello, PHP!";
?>

Drag options to blanks, or click blank then click option'

Aecho

Bwrite

Cprint

Dprintf

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo instead of print here.

The print statement outputs the string and returns 1.

3fill in blank

hard

Complete the code to output the string using printf.

PHP

<?php
[1]("Hello!");
?>

Drag options to blanks, or click blank then click option'

Aecho

Bprintf

Cprint

Dwrite

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo or print instead of printf.

printf is a function and requires parentheses.

4fill in blank

hard

Fill both blanks to output the string and check the return value.

PHP

<?php
$returnValue = [1] "Test";
echo "Return value: " . [2];
?>

Drag options to blanks, or click blank then click option'

Aprint

B$returnValue

Cecho

Dprintf

Attempts:

3 left

💡 Hint

Common Mistakes

Using echo which does not return a value.

print outputs the string and returns 1, stored in $returnValue.

5fill in blank

hard

Fill all three blanks to output the string with printf and store its return value.

PHP

<?php
$returnVal = [1]("Number: %d", [2]);
echo "Printed chars: " . [3];
?>

Drag options to blanks, or click blank then click option'

Aprint

B42

C$returnVal

Dprintf

Attempts:

3 left

💡 Hint

Common Mistakes

Using print instead of printf for formatted output.

printf outputs formatted string, returns number of characters printed, stored in $returnVal.