arrayValues.list

Code example

<?php declare(strict_types = 1);

/** @var list<string> $names */
$names = ['Alice', 'Bob', 'Charlie'];

$result = array_values($names);

Why is it reported?

The array_values() function returns a list of all values in the array, re-indexed with consecutive integer keys starting from 0. PHPStan has determined that the argument is already a list (an array with consecutive integer keys starting from 0), so calling array_values() has no effect -- the result will be identical to the input.

In the example above, $names is typed as list<string>, which already has sequential integer keys. Calling array_values() on it produces the same array.

How to fix it

If the call is unnecessary, remove it:

 <?php declare(strict_types = 1);

 /** @var list<string> $names */
 $names = ['Alice', 'Bob', 'Charlie'];

-$result = array_values($names);
+$result = $names;

If you are calling array_values() to narrow the type from array to list, fix the type of the source variable instead so that it is already known to be a list.