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psalm/docs/running_psalm/issues/InvalidLiteralArgument.md
2020-09-10 22:58:26 -04:00

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# InvalidLiteralArgument
Emitted when a literal argument is passed where a variable is expected, such as the first argument of `strpos`, where an explicit `$haystack` is almost always unintended.
```php
<?php
function foo(string $s) : void {
echo strpos(".", $s);
}
```