What is the value of a and b after the function

What is the value of $a and $b after the function call?

<?php
function doSomething( &$arg ) 
{
  $return = $arg;
  $arg += 1;
  return $return;	
}
$a = 3;
$b = doSomething( $a );
?>

A. a is 3 and b is 4

B. a is 4 and b is 3

C. Both are 3

D. Both are 4

Answer: Option B

Solution (By Examveda Team)

$a is 4 and $b is 3. The former because $arg is passed by reference, the latter because the return value of the function is a copy of the initial value of the argument.

What does PHP stand for?
1. Personal Home Page
2. Hypertext Preprocessor
3. Pretext Hypertext Processor
4. Preprocessor Home Page

A. Both 1 and 3

B. Both 2 and 4

C. Only 2

D. Both 1 and 2

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What is the value of $a and $b after the function call?

`<?php function doSomething( &$arg ) { $return = $arg; $arg += 1; return $return; } $a = 3; $b = doSomething( $a ); ?>`

Solution (By Examveda Team)

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What is the value of a and b after the function...

What is the value of $a and $b after the function call? <?php function doSomething( &$arg ) { $return = $arg; $arg += 1; return $return; } $a = 3; $b = doSomething( $a ); ?>

Solution (By Examveda Team)

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Read More: MCQ Type Questions and Answers

What is the value of $a and $b after the function call?

`<?php function doSomething( &$arg ) { $return = $arg; $arg += 1; return $return; } $a = 3; $b = doSomething( $a ); ?>`