What are some alternative methods to compare codes in PHP to avoid overwriting variables?

When comparing codes in PHP to avoid overwriting variables, one alternative method is to use the strict comparison operator (===) instead of the loose comparison operator (==). This ensures that not only the values of the variables are equal, but also their types. Another method is to use namespaces to encapsulate variables and prevent conflicts between them.

// Using strict comparison operator
if ($var1 === $var2) {
    // code here
}

// Using namespaces
namespace MyNamespace;

$var1 = "Hello";

namespace AnotherNamespace;

$var1 = "World";