Online PHP editor | refs for nrYWK

@ 2022-09-29T17:14:28Z

<?php

$data = [
    'a',
    'b',
    'c',
];

// Our first index
$firstIndex = 10;

// Index before first
$tmpIndex = $firstIndex - 1;

// Re-index with a temporary
$array = [$tmpIndex => null, ...$data];

// Remove temporary
unset($array[$tmpIndex]);

var_dump($array);