Cannot unpack array with string keys¶
Description¶
Initialy, the ellipsis operator would only work with integer-indexed arrays, and not with string-indexed arrays. This feature was introduced in PHP 8.1, and the error message then disappeared.
Example¶
<?php
$array = ['a' => 1, 2];
$array2 = [...$array, 3];
?>
Solutions¶
Upgrade the code to PHP 8.1 or newer.
Use array_keys() before using the ellipsis operator.