How can the use of curly braces in PHP code improve readability and maintainability, especially in complex if-else statements?

Using curly braces in PHP code can improve readability and maintainability, especially in complex if-else statements, by clearly defining the scope of the code block. This makes it easier to understand the logic and structure of the code, as well as to make modifications or updates in the future. It also helps to avoid errors that can arise from ambiguous or unclear code blocks. 

// Example of using curly braces in a complex if-else statement
if ($condition1) {
    // Code block for condition1
    echo "Condition 1 is true";
} elseif ($condition2) {
    // Code block for condition2
    echo "Condition 2 is true";
} else {
    // Code block for default condition
    echo "Neither condition is true";
}

Keywords

curly braces PHP code readability maintainability complex if-else statements

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