The ksort() function used for sort an associative array in assending order by the key.
Syntax
ksort(array,sorting_type);
Example
$array=array("a"=>"ram","b"=>"shyam","c"=>"ghanshyam");
ksort($array);
print_r($array);
Output
Array ( [a] => ram [b] => shyam [c] => ghanshyam )
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