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psalm/docs/running_psalm/issues/PossiblyInvalidCast.md

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# PossiblyInvalidCast
Emitted when attempting to cast a value that may not be castable
```php
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<?php
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class A {}
class B {
public function __toString() {
return 'hello';
}
}
$c = (string) (rand(0, 1) ? new A() : new B());
```