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ArrayObject ksort() Function in PHP
  • Last Updated : 22 Mar, 2019

The ksort() function of the ArrayObject class in PHP is used to sort the elements of the ArrayObject according to the keys. This function does not affects the association of the keys with the values, it just sorts the entries of the ArrayObject according to the Keys.

Syntax:

void ksort() 

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:

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<?php
// PHP program to illustrate the
// ksort() function
  
$arr = array("b" => "geeks", "c" => "are", "a" => "awesome");
  
// Create array object
$arrObject = new ArrayObject($arr);
  
// Sort the ArrayObject according to keys
$arrObject->ksort();
  
// Print the sorted ArrayObject
print_r($arrObject);
  
?>

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Output:

ArrayObject Object
(
    [storage:ArrayObject:private] => Array
        (
            [a] => awesome
            [b] => geeks
             => are
        )

)

Program 2:

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

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Output:

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

)

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




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