How to sort an associative array by key in PHP
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How to sort an associative array by key in PHP
Use the PHP ksort() and krsort() function
The PHP ksort() and krsort() functions can be used for sorting an array by key. The following section will show you how these functions basically work.
Sorting Associative Arrays in Ascending Order
You can use the ksort() function for sorting an associative array by key alphabetically in the ascending order, while maintaining the relationship between key and data.
<?php
$fruits = array("b"=>"banana", "a"=>"apple", "d"=>"dog", "c"=>"cat");
// Sorting the array by key
ksort($fruits);
print_r($fruits);
?>You can use the krsort() function for sorting an associative array by key alphabetically in the descending order, while maintaining the relationship between key and data.
<?php
$fruits = array("b"=>"banana", "a"=>"apple", "d"=>"dog", "c"=>"cat");
// Sorting the array by key
krsort($fruits);
print_r($fruits);
?>Author : Harsukh Makwana
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