What will be the output of the following PHP code?
<?php
$number = array (“4”, “hello”, 2);
echo (array_sum ($number));
?>
a) 4hello2
b) 4
c) 2
d) 6
Answer: d
Explanation: The array_sum() function add all the values of the input array together, returning the final sum. If a string datatype is found, it’ll be ignored.
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