PHP sort() Function – Sorting Arrays

The PHP sort() function sorts an array in ascending order, rearranging its elements from lowest to highest.

Signature: bool sort(array &$array, int $sort_flags = SORT_REGULAR). The optional $sort_flags can be one of several constants such as SORT_REGULAR, SORT_NUMERIC, SORT_STRING, SORT_LOCALE_STRING, SORT_NATURAL, or SORT_FLAG_CASE, which modify the comparison behavior.

Parameters: $array – the array to be sorted; $sort_flags – optional flag to change sorting type.

Return value: TRUE on success, FALSE on failure.

Example:

<?php
$fruits = array("lemon","orange","banana","apple");
sort($fruits);
foreach ($fruits as $key => $val) {
    echo "fruits[$key] = $val
";
}
?>

Output:

fruits[0] = apple
fruits[1] = banana
fruits[2] = lemon
fruits[3] = orange