Online PHP editor | output for REQAa

@ 2020-04-22T22:36:54Z

<?php

function mergeSort($array) {
    echo "array = " . json_encode($array) . "\n";
    $count = count($array);
    if ($count == 1) {
        return $array;
    }
    $middle = $count / 2;  // round/floor/ceil is unnecessary
    return merge(
        mergeSort(array_slice($array, 0, $middle)),
        mergeSort(array_slice($array, $middle))
    );
}

function merge($half1, $half2) {
    do {
        $temp[] = $half1[0] < $half2[0] ? array_shift($half1) : array_shift($half2);
    } while(isset($half1[0], $half2[0]));
    return array_merge($temp, $half1, $half2);
}

$input = [4, 2, 7, 5, 3];
$input = mergeSort($input);
var_export($input);

Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3: array = [4,2,7,5,3] Deprecated: Implicit conversion from float 2.5 to int loses precision in /in/REQAa on line 11 array = [4,2] array = [4] array = [2] Deprecated: Implicit conversion from float 2.5 to int loses precision in /in/REQAa on line 12 array = [7,5,3] Deprecated: Implicit conversion from float 1.5 to int loses precision in /in/REQAa on line 11 array = [7] Deprecated: Implicit conversion from float 1.5 to int loses precision in /in/REQAa on line 12 array = [5,3] array = [5] array = [3] array ( 0 => 2, 1 => 3, 2 => 4, 3 => 5, 4 => 7, )
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30: array = [4,2,7,5,3] array = [4,2] array = [4] array = [2] array = [7,5,3] array = [7] array = [5,3] array = [5] array = [3] array ( 0 => 2, 1 => 3, 2 => 4, 3 => 5, 4 => 7, )

preferences:dark modelive previewkey bindings