sort() function in PHP

The sort() function in PHP sorts an array in ascending order.

Syntax

sort(arr, flag)

Parameters

• arr − The array to sort.

• flag −

  • 0 = SORT_REGULAR − Default. Compare items normally. Do not change types.

  • 1 = SORT_NUMERIC − Compare items numerically

  • 2 = SORT_STRING − Compare items as strings

  • 3 = SORT_LOCALE_STRING − Compare items as strings, based on current locale

  • 4 = SORT_NATURAL − Compare items as strings using natural ordering.

Return

The sort() function sorts the array. It returns TRUE on success and FALSE on failure.

Example

The following is an example −

<?php
$arr = array("jack", "tim", "scarlett","david" );
sort($arr, SORT_STRING);
print_r($arr);
?>

Output

Array (
   [0] => david
   [1] => jack
   [2] => scarlett
   [3] => tim
)

Let us see another example −

Example

<?php
$arr = array(45, 87, 23, 66, 12, 98, 56);
sort($arr);
print_r($arr);
?>

Output

Array (
   [0] => 12
   [1] => 23
   [2] => 45
   [3] => 56
   [4] => 66
   [5] => 87
   [6] => 98
)