How does PHP handle the initialization of variables in constructors compared to other programming languages like C++?

In PHP, variables declared in a constructor are automatically initialized to NULL if no initial value is provided, unlike in C++ where uninitialized variables can contain garbage values. To ensure proper initialization of variables in constructors in PHP, it is good practice to explicitly assign default values to them if needed. 

class Example {
    private $variable;

    public function __construct($value = null) {
        $this->variable = $value; // Initialize variable with default value if provided
    }
}

Keywords

PHP constructors variable initialization C++ programming languages

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