Change all keys in an array to uppercase and overwrite other entries in PHP
Description
The following code shows how to change all keys in an array to uppercase and overwrite other entries.
Example
/*from ww w.ja v a 2s .co m*/
//If two or more keys will be equal after running array_change_key_case()
//(e.g. "b" and "B"), the latest array will override the other:
<?php
$pets=array("a"=>"Apple","B"=>"Dog","c"=>"Cat","b"=>"Bird");
print_r(array_change_key_case($pets,CASE_UPPER));
?>
The code above generates the following result.
