PHP Basic Programs for Beginners

PHP Basic Programs for Beginners - Important Points

26.		What is the output of the following PHP code snippet? <?php $myString = "Hello, world!"; echo substr($myString, 7); ?>

26.

What is the output of the following PHP code snippet?

<?php
$myString = "Hello, world!";
echo substr($myString, 7);
?>

A. Hello

B. world!

C. Hello, w

D. None of the above

View Answer Discuss Work Space

Answer: option b

Explanation:

The code snippet uses the substr() function to extract a substring from the $myString variable starting from the 7th character (which is the "w" in "world!") and then displays the substring, which is "world!".

27.		Which of the following is the correct way to add an element to the end of an array in PHP?

A. array_push($myArray, "newElement");

B. $myArray[count($myArray)] = "newElement";

C. $myArray[] = "newElement";

D. All of the above

View Answer Discuss Work Space

Answer: option d

Explanation:

All of the options shown are correct ways to add an element to the end of an array in PHP.

28.		What is the output of the following PHP code snippet? <?php $myVar = "5"; $myVar += 2; echo $myVar; ?>

28.

What is the output of the following PHP code snippet?

<?php
$myVar = "5";
$myVar += 2;
echo $myVar;
?>

A. 5

B. 2

C. 7

D. None of the above

View Answer Discuss Work Space

Answer: option c

Explanation:

The code snippet sets the $myVar variable to the string "5" and then adds 2 to it, which results in the integer 7. The echo statement then displays the value of $myVar, which is 7.

29.		Which of the following is the correct way to remove an element from the beginning of an array in PHP?

A. array_shift($myArray);

B. array_pop($myArray);

C. unset($myArray[0]);

D. All of the above

View Answer Discuss Work Space

Answer: option a

Explanation:

The array_shift() function is the correct way to remove an element from the beginning of an array in PHP. The other options remove elements from the end or using the unset() function.

Worried about Placements?

Get on FAST TRACK COURSE

PHP Basic Programs for Beginners

Subscribe for Latest Career Trends

Use AI and ChatGPT for Career Guidance

Unlock Your Future

Worried for Placements in 2024?

Join FAST TRACK Course

Supercharge Your SUCCESS

Join All in One Placement Mock Tests-2024