ELEVATE SKILLS!
Q: 1 What will be the output of the following PHP code?
<?php
$x = 5;
$y = 10;
function fun()
{
$y = $GLOBALS[‘x’] + $GLOBALS[‘y’];
}
Fun();
echo $y;
?>
5
10
15
25
[ Option B ]
In this PHP code, the variables $x = 5 and $y = 10 are defined globally. Inside the function fun(), a new local variable $y is created and assigned the value of $GLOBALS['x'] + $GLOBALS['y'], which is 15.
However, since no global $y; keyword is used, this local $y does not affect the global $y. After the function call, the global $y still holds the value 10, so the output is 10.
Q: 2 What will be the output of the following PHP program?
<?php
$fruits = array(“apple”, “orange”, array (“pear”, “mango”), “banana”);
print (count($fruits,1));
?>
6
5
4
3
[ Option A ]
In this PHP program, the array $fruits contains four elements: "apple", "orange", a nested array ["pear", "mango"], and "banana".
By default, the count() function in PHP counts only the top-level elements, which would give 4. However, since the program uses count($fruits, 1), the second parameter enables recursive counting, meaning elements inside nested arrays are also included in the count.
The nested array ["pear", "mango"] has 2 elements, so the total becomes 4 + 2 = 6. Therefore, the output of the program is 6.
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