PHP Arrays
What will be the output of the following PHP code?
$cars = array("Volvo", "BMW", "Toyota");
echo "I like " . $cars[2] . ", " . $cars[1] . " and " . $cars[0] . ".";

I like Volvo, BMW and Toyota
I like BMW, Volvo and Toyota
I like Toyota, BMW and Volvo
I like Volvo, Toyota and BMW

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PHP Arrays
What will be the output of the following PHP code?
$age = array("Peter"=>"35", "Ben"=>"37", "Joe"=>"43");
print_r(array_change_key_case($age, CASE_UPPER));

Array ( [Peter] => 35 [Ben] => 37 [Joe] => 43 )
Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )
Array ( [peter] => 35 [ben] => 37 [joe] => 43 )
Array ( [PeTeR] => 35 [BeN] => 37 [Joe] => 43 )

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