How can the issue of function not found in a namespace be resolved in PHP error handling?

Issue: The error "Fatal error: Uncaught Error: Call to undefined function" occurs when a function is called that is not defined within the current namespace or scope. To resolve this issue, ensure that the function is defined or imported correctly within the namespace. Example PHP code snippet:

// Define the function within the correct namespace
namespace MyNamespace;

function myFunction() {
    // Function implementation
}

// Call the function within the namespace
myFunction();