A brief discussion on php array array_change_key_case() function and array_chunk() function_php examples

is as follows:

'Java',  
           'B'=>'Php',  
           'c'=>'C++',  
           'D'=>'C#'); 
print_r(array_change_key_case($input_array, CASE_LOWER)); 
print_r(array_change_key_case($input_array, CASE_UPPER)); 
//如果在运行该函数时两个或多个键相同，则最后的元素会覆盖其他元素，例如： 
$input_array = array('a'=>'Barcelona',  
           'B'=>'Madrid',  
           'c'=>'Manchester',  
           'b'=>'Milan'); 
print_r(array_change_key_case($input_array, CASE_LOWER)); 
?>

Running result:

'Java',  
           'B'=>'Php',  
           'C'=>'C++',  
           'D'=>'C#'); 
print_r(array_chunk($input_array, 2 ,false)); 
print_r(array_chunk($input_array, 3 ,true)); 
?>

Running result:

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