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How can PHP tags and code indentation improve the readability and maintainability of PHP scripts?

PHP tags and code indentation can improve the readability and maintainability of PHP scripts by making the code structure more organized and easier to follow. Using proper indentation helps to visually separate different sections of code, making it easier to identify blocks of code and understand the logic flow. Additionally, using PHP tags <?php and ?> clearly marks the beginning and end of PHP code, making it easier to distinguish PHP code from HTML or other languages within the same file.

php 
<?php

// Example PHP script with proper indentation and PHP tags
function calculateSum($a, $b) {
    $sum = $a + $b;
    
    return $sum;
}

$num1 = 5;
$num2 = 10;

$result = calculateSum($num1, $num2);

echo "The sum of $num1 and $num2 is: $result";

?>

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