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PHP Functions

PHP Functions
Type Hinting was introduced in which version of PHP?

PHP 4
PHP 5
PHP 5.3
PHP 6

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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
helloblabla
error
helloblablablabla

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PHP Functions
Which one of the following PHP functions can be used to build a function that accepts any number of arguments?

func_get_argc()
func_get_argv()
get_argc()
get_argv()

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PHP Functions
What will be the output of the following PHP code?
function calc($price, $tax="") {
$total = $price + ($price * $tax);
echo "$total";
}
calc(42);

Error
84
0
42

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PHP Functions
What will be the output of the following PHP code?
function sum($num1, $num2) {
$total = $num1 + $num2;
echo "cos($total)";
}
sum(5,-5);

0.5
0
1
-0.5

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PHP Functions
What will be the output of the following PHP code ?
function _func()
{
echo "Hello World";
}
_func();

Hello World
No Output
None of the mentioned
ERROR

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