How can type hints be effectively used in PHP to prevent errors in object creation?

Type hints can be effectively used in PHP to prevent errors in object creation by specifying the expected data types for function parameters or return values. This helps to enforce strict typing and can catch errors at compile time rather than at runtime, improving code quality and maintainability. 

class User {
    private string $name;
    
    public function __construct(string $name) {
        $this->name = $name;
    }
}

$user = new User("John"); // This will work correctly
$user2 = new User(123); // This will result in a TypeError

Keywords

type hints PHP object creation errors prevention

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