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  • how to change all keys in an array to lowercase.

    @shashank.garg
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    Hello Readers ,

    If we want to change the array key lower case to uppercase and vice versa then their is PHP function array_change_key_case() .

    Example.

    <!DOCTYPE html>
<html>
<body>

<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
print_r(array_change_key_case($age,CASE_LOWER));
?>

</body>
</html>

    Output:

    Array ( [PETER] => 35 [BEN] => 37 [JOE] => 43 )
    php array_change_key_case()
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