How can error reporting be optimized in PHP to identify issues with method calls and variable values?

To optimize error reporting in PHP for method calls and variable values, you can enable error reporting, use debugging tools like Xdebug, and implement proper error handling techniques like try-catch blocks. 

// Enable error reporting
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Use Xdebug for advanced debugging
// Install Xdebug extension and configure it in php.ini

// Implement proper error handling with try-catch blocks
try {
    // Code that may throw an error
} catch (Exception $e) {
    echo 'Error: ' . $e->getMessage();
}

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