PHP Arrays
What will be the output of the following PHP code ?
$city_west = array("NYC", "London");
$city_east = array("Mumbai", "Beijing");
print_r(array_replace($city_west, $city_east));

Array ( [1] => NYC [0] => London )
Array ( [1] => Mumbai [0] => Beijing )
Array ( [0] => Mumbai [1] => Beijing )
Array ( [0] => NYC [1] => London )

ANSWER DOWNLOAD EXAMIANS APP

PHP Arrays
What will be the output of the following PHP code?
$a1 = array("red", "green");
$a2 = array("blue", "yellow");
print_r(array_merge($a1, $a2));

Array ( [0] => blue [1] => yellow [2] => red [3] => green )
Array ( [0] => red [1] => green)
Array ( [0] => blue [1] => yellow )
Array ( [0] => red [1] => green [2] => blue [3] => yellow )

ANSWER DOWNLOAD EXAMIANS APP

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 )

ANSWER DOWNLOAD EXAMIANS APP