PYTHON ksort

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Python replacement for PHP's ksort [ edit | history ]
In Python, a dictionary (i.e. associative array) is not ordered, so it is not possible to "modify the order" of the dictionary like you can in PHP. Instead, we return a new list of the (key, value) pairs of the dictionary sorted in key order.
def ksort(d):
     return [(k,d[k]) for k in sorted(d.keys())]

PHP ksort

PHP original manual for ksort [ show | ]


(PHP 4, PHP 5)

ksortSort an array by key


bool ksort ( array &$array [, int $sort_flags= SORT_REGULAR ] )

Sorts an array by key, maintaining key to data correlations. This is useful mainly for associative arrays.



The input array.


You may modify the behavior of the sort using the optional parameter sort_flags , for details see sort().

Return Values

Returns TRUE on success or FALSE on failure.


Version Description
4.0.0 The optional sort_flags parameter was added.


Example #1 ksort() example

= array("d"=>"lemon""a"=>"orange""b"=>"banana""c"=>"apple");
foreach (
$fruits as $key => $val) {
"$key = $val\n";

The above example will output:

a = orange
b = banana
c = apple
d = lemon

See Also

  • asort() - Sort an array and maintain index association
  • arsort() - Sort an array in reverse order and maintain index association
  • krsort() - Sort an array by key in reverse order
  • uksort() - Sort an array by keys using a user-defined comparison function
  • sort() - Sort an array
  • natsort() - Sort an array using a "natural order" algorithm
  • rsort() - Sort an array in reverse order