What potential pitfalls should be considered when debugging PHP scripts with echo statements?

Potential pitfalls when debugging PHP scripts with echo statements include accidentally displaying sensitive information to users, cluttering the output with excessive debug messages, and causing unexpected behavior due to improperly formatted or misplaced echo statements. To avoid these issues, it is essential to use conditional statements to control when echo statements are executed and to ensure that only necessary information is displayed during debugging.

// Example of using conditional statements to control echo output during debugging
$debug = true;

if ($debug) {
    echo "Debug message: This is a sample debug message.";
}