Are there any advantages and disadvantages of using const over define in PHP?

When defining constants in PHP, you can use either the const keyword or the define function. The main advantage of using const is that it is a language construct and can be used within classes and interfaces. On the other hand, define is a function and can be used globally, but cannot be used within classes or interfaces. Using const: 

class MyClass {
    const MY_CONSTANT = 'value';
    
    public function getConstant() {
        return self::MY_CONSTANT;
    }
}
```

Using define:
```php
define('MY_CONSTANT', 'value');

function getConstant() {
    return MY_CONSTANT;
}

Keywords

const define advantages disadvantages PHP

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