PHP Functions
. . . . . converts the keys of an array into values and the values into keys.

array_flip()
array_transpose()
array_flips()
array_trans()

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PHP Functions
What will be the output of the following PHP code?
function addFunction($num1, $num2) {
$sum = $num1 + $num2;
return $sum;
}
$return_value = addFunction(10, 20);
echo "Returned value from the function : $return_value"

Returned value from the function : 30
Returned value from the function : $return_value
Error
Returned value from the function :

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