What will happen in this function call? lt;?php function calc($price, $tax) $total = $price + $tax; $pricetag = 15; $taxtag = 3; calc($pricetag, $taxtag); ?>

What will happen in this function call &lt php function calc(...

This question belongs to PHP Functions

Functions

What will happen in this function call?

<?php
function calc($price, $tax)	
{
    $total = $price + $tax;
}
$pricetag = 15;
$taxtag = 3;
calc($pricetag, $taxtag);	
?>

A) Call By Value B) Call By Reference C) Default Argument Value D) Type Hinting

Answer & Solution

Correct Answer: Option A

When you pass an argument in the above manner or say we pass 15 and 3 directly, it is called passing by value or call by value.

Question posted by Examveda

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<?php
function calc($price, $tax)	
{
    $total = $price + $tax;
}
$pricetag = 15;
$taxtag = 3;
calc($pricetag, $taxtag);	
?>

<?php
function calc($price, $tax="")
{
    $total = $price + ($price * $tax);
    echo "$total"; 
}
calc(42);	
?>