What potential pitfalls should be considered when using large PHP scripts with thousands of lines of code?

Potential pitfalls when using large PHP scripts with thousands of lines of code include decreased performance, difficulty in debugging, and increased likelihood of errors. To mitigate these issues, it is recommended to break down the code into smaller, more manageable chunks, utilize proper documentation and comments, and implement code reviews and testing procedures. 

// Example of breaking down a large PHP script into smaller functions

function process_data($data) {
    // Code for processing data
}

function validate_data($data) {
    // Code for validating data
}

function output_data($data) {
    // Code for outputting data
}

// Main script
$data = get_data();
$data = process_data($data);
if (validate_data($data)) {
    output_data($data);
} else {
    echo "Error: Invalid data";
}

Keywords

memory leaks code maintainability performance bottlenecks scalability challenges error handling

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