What will be the output of the following PHP code ?<?php$Student = array("Ajit" => "23", "Rahul" => "22","Ats" => "23");array_pop($Student);print_r(array_change_key_case($Student, CASE_UPPER));?>

What will be the output of the following PHP code ?<?php$Student = arr

1.	What will be the output of the following PHP code ? <?php $Student = array("Ajit" => "23", "Rahul" => "22","Ats" => "23"); array_pop($Student); print_r(array_change_key_case($Student, CASE_UPPER)); ?>
A.	Error
B.	Nothing
C.	None of these
Answer» E.

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What will be the output of the following PHP code ?<?php$Student = array("Ajit" => "23", "Rahul" => "22","Ats" => "23");array_pop($Student);print_r(array_change_key_case($Student, CASE_UPPER));?>

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What will be the output of the following PHP code ?
<?php
$Student = array("Ajit" => "23", "Rahul" => "22","Ats" => "23");
array_pop($Student);
print_r(array_change_key_case($Student, CASE_UPPER));
?>