1
0
mirror of https://github.com/danog/psalm.git synced 2024-11-27 04:45:20 +01:00
psalm/docs/running_psalm/issues/DuplicateArrayKey.md
Tom Klingenberg ea52b9d23a
Fix minor typos in docs (#3956)
While I was searching for some code, ran across these.
2020-08-08 08:09:41 -04:00

491 B

DuplicateArrayKey

Emitted when an array has a key more than once

<?php

$arr = [
    'a' => 'one',
    'b' => 'two',
    'c' => 'this text will be overwritten by the next line',
    'c' => 'three',
];

How to fix

Remove the offending duplicates:

<?php

$arr = [
    'a' => 'one',
    'b' => 'two',
    'c' => 'three',
];

The first matching 'c' key was removed to prevent a change in behaviour (any new duplicate keys overwrite the values of previous ones).