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PHP Functions

PHP Functions
What will be the output of the following PHP code ?
function calc($num1, $num2)
{
$total = $num1 * $num2;
}
$result = calc(42, 0);
echo $result;

42
0
84
Error

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PHP Functions
What will be the output of the following PHP code ?
function constant()
{
define("GREETING", "Welcome to Narnia");
echo greeting;
}

Welcome to Narnia
greeting
ERROR
GREETING

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PHP Functions
What will be the output of the following PHP code?
function foo($msg) {
echo "$msg";
}
$var1 = "foo";
$var1("will this work");

Error
$msg
0
Will this work

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PHP Functions
What will be the output of the following PHP code?
$op2 = "blabla"; function foo($op1) {
echo $op1;
echo $op2;
}
foo("hello");

hello
Error
helloblablablabla
helloblabla

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PHP Functions
What will be the output of the following PHP code?
echo(atan(0.50));

0.23568451142521
0.46364760900081
0.11845976421345
1

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PHP Functions
What will be the output of the following PHP code ?
function TV($string)
{
echo "my favourite TV show is ".$string;
function b()
{
echo " I am here to spoil this code";
}
}
function b()
{
echo " I am here to spoil this code";
}
b();
TV("Sherlock");

None of the mentioned
I am here to spoil this code
Error
My favourite TV show isI am here to spoil this code

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