How can PHP code be optimized and structured effectively to avoid errors and improve performance?

To optimize and structure PHP code effectively to avoid errors and improve performance, it is essential to follow best practices such as using proper naming conventions, organizing code into functions and classes, avoiding redundant code, and utilizing built-in PHP functions efficiently. 

// Example of optimized and structured PHP code
<?php

// Define a function to calculate the sum of two numbers
function calculateSum($num1, $num2) {
    return $num1 + $num2;
}

// Call the function to calculate the sum of 5 and 10
$result = calculateSum(5, 10);
echo "The sum is: " . $result;

?>

Keywords

PHP optimization performance error handling code structure

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