PHP Basic Programs for Beginners

PHP Basic Programs for Beginners - Important Points

11.		Which of the following is the correct way to access a specific character in a string in PHP?

A. $myString[3]

B. $myString{3}

C. Both A and B

D. None of the above

View Answer Discuss Work Space

Answer: option c

Explanation:

Both option A and B are correct ways to access a specific character in a string in PHP.

12.		What is the output of the following PHP code snippet? <?php $num1 = 10; $num2 = 5; if ($num1 > $num2) { echo "$num1 is greater than $num2"; } else { echo "$num2 is greater than $num1"; } ?>

12.

What is the output of the following PHP code snippet?

<?php
$num1 = 10;
$num2 = 5;
if ($num1 > $num2) {
echo "$num1 is greater than $num2";
} else {
echo "$num2 is greater than $num1";
}
?>

A. 10 is greater than 5

B. 5 is greater than 10

C. 10

D. None of the above

View Answer Discuss Work Space

Answer: option a

Explanation:

The code snippet compares two variables $num1 and $num2 and then displays the result, which is "$num1 is greater than $num2".

13.		Which of the following is the correct way to create a multidimensional array in PHP?

A. $myArray = array("red", "green", "blue");

B. $myArray = array(array(1, 2), array(3, 4));

C. $myArray = array(1, 2, 3 => array("a", "b", "c"));

D. None of the above

View Answer Discuss Work Space

Answer: option b

Explanation:

The correct way to create a multidimensional array in PHP is by using nested array syntax, as shown in option B.

14.		What is the output of the following PHP code snippet? <?php $x = 5; $y = 10; function myFunction() { global $x, $y; $y = $x + $y; } myFunction(); echo $y; ?>

14.

What is the output of the following PHP code snippet?

<?php
$x = 5;
$y = 10;
function myFunction() {
global $x, $y;
$y = $x + $y;
}
myFunction();
echo $y;
?>

A. 5

B. 10

C. 15

D. None of the above

View Answer Discuss Work Space

Answer: option c

Explanation:

The code snippet defines a function myFunction() that adds two variables $x and $y and then modifies the value of $y using the global keyword. The echo statement then displays the new value of $y, which is 15.

15.		Which of the following is the correct way to loop through an associative array in PHP?

A. foreach ($myArray as $value) { ... }

B. foreach ($myArray as $key) { ... }

C. foreach ($myArray as $key => $value) { ... }

D. None of the above

View Answer Discuss Work Space

Answer: option c

Explanation:

The correct way to loop through an associative array in PHP is by using the foreach loop with the $key => $value syntax.

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