ArrayObject::ksort
(PHP 5 >= 5.2.0, PHP 7)
ArrayObject::ksort — Sort the entries by key
Description
public ArrayObject::ksort
( void
) : void
Sorts the entries by key, maintaining key to entry correlations. This is useful mainly for associative arrays.
Parameters
This function has no parameters.
Return Values
No value is returned.
Examples
Example #1 ArrayObject::ksort() example
<?php
$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
$fruitArrayObject = new ArrayObject($fruits);
$fruitArrayObject->ksort();
foreach ($fruitArrayObject as $key => $val) {
echo "$key = $val\n";
}
?>
The above example will output:
a = orange b = banana c = apple d = lemon
See Also
- ArrayObject::asort() - Sort the entries by value
- ArrayObject::natsort() - Sort entries using a "natural order" algorithm
- ArrayObject::natcasesort() - Sort an array using a case insensitive "natural order" algorithm
- ArrayObject::uasort() - Sort the entries with a user-defined comparison function and maintain key association
- ArrayObject::uksort() - Sort the entries by keys using a user-defined comparison function
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