PHP program to get the head of a given list.

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<?php
function head($items)
{
    return reset($items);
}
print_r(head([1, 2, 3]));
echo "\n";
print_r(head([2, 1, 3, -4, 5, 1, 2]));

?>


Output:

1
2
 

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PHP program to get the last element of a given list.
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<?php
function last($items)
{
    return en...

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