How can the error "Call to undefined function" be resolved when working with PHP classes?

When working with PHP classes, the error "Call to undefined function" typically occurs when trying to call a function that is not defined within the class. To resolve this issue, make sure that the function is properly defined within the class or use the correct syntax to call the function. Example PHP code snippet: 

class MyClass {
    public function myFunction() {
        // Function definition
    }
}

// Create an instance of the class
$obj = new MyClass();

// Call the function using the correct syntax
$obj->myFunction();

Keywords

PHP classes error undefined function resolution

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