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psalm/docs/running_psalm/issues/PossiblyUndefinedIntArrayOffset.md
2020-03-20 19:13:56 -04:00

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# PossiblyUndefinedIntArrayOffset
Emitted when the config flag `ensureArrayIntOffsetsExist` is set to `true` and an integer-keyed offset is not checked for existence
```php
<?php
/**
* @param array<int, string> $arr
*/
function foo(array $arr) : void {
echo $arr[0];
}
```