ajamil posted

sort array by array key in PHP ?

hwo to sort array by array key in php ?

sqltreat
answered Feb 27 '23 00:00

To sort an array by array key in PHP, you can use the ksort() or krsort() function. These functions sort the array by its keys in ascending or descending order , respectively.

Here's an example of how to use ksort() to sort an array by its keys in ascending order:



$fruits = array(
  'banana' => 3,
  'apple' => 5,
  'orange' => 2,
  'kiwi' => 4
);

ksort($fruits);

foreach ($fruits as $fruit => $count) {
  echo $fruit . ': ' . $count . '<br>';
}

In this example, we have an array called $fruits with four elements, where each key is a fruit name and each value is the count of that fruit. We use the ksort() function to sort the array by its keys in ascending order .

We then loop through the sorted array using a foreach loop and output each element using the echo statement.

The output of this code will be:


apple: 5
banana: 3
kiwi: 4
orange: 2

If you want to sort the array by its keys in descending order , you can use the krsort() function instead of ksort() . The usage of krsort() is similar to ksort(), but it sorts the array by its keys in descending order instead of ascending order.

Edit Answer

ajamil posted

sort array by array key in PHP ?

sqltreat answered Feb 27 '23 00:00

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sqltreat
answered Feb 27 '23 00:00