ArrayObject natcasesort() Function in PHP

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The natcasesort() function of the ArrayObject class in PHP is used to sort the elements of the ArrayObject following a natural order case sensitive sorting algorithm. Natural ordering means to arrange the elements in a order a normal human being would do.

Syntax:

void natcasesort()

Parameters: This function does not accepts any parameters.

Return Value: This function does not returns any value.

Below programs illustrate the above function:

Program 1:

<?php 
// PHP program to illustrate the 
// natcasesort() function 
  
$arr = array("b" => "zambiatek", "d" => "are", 
            "a" => "awesome", "e" => "YAAY"); 
  
// Create array object 
$arrObject = new ArrayObject($arr); 
  
// Sort the ArrayObject 
$arrObject->natcasesort(); 
  
// Print the sorted ArrayObject 
print_r($arrObject); 
  
?> 

Output:

ArrayObject Object
(
    [storage:ArrayObject:private] => Array
        (
            [d] => are
            [a] => awesome
            [b] => zambiatek
            [e] => YAAY
        )

)

Program 2:

<?php 
// PHP program to illustrate the 
// natcasesort() function 
  
$arr = array("45" => "zambiatek", "92" => "are", "10" => "awesome"); 
  
// Create array object 
$arrObject = new ArrayObject($arr); 
  
// Sort the ArrayObject 
$arrObject->natcasesort(); 
  
// Print the ArrayObject 
print_r($arrObject); 
  
?> 

Output:

ArrayObject Object
(
    [storage:ArrayObject:private] => Array
        (
            [92] => are
            [10] => awesome
            [45] => zambiatek
        )

)

Reference: http://php.net/manual/en/arrayobject.natcasesort.php