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What role do program flowcharts play in documenting PHP projects and ensuring clarity in project structure?

Program flowcharts play a crucial role in documenting PHP projects by visually representing the flow of control within the program. They help in understanding the logic of the code, identifying potential issues, and ensuring clarity in the project structure. By creating flowcharts, developers can easily visualize the sequence of steps in their PHP code, making it easier to debug and maintain the project.

php 
// Example PHP code snippet demonstrating the use of a flowchart to improve project structure and clarity

// Define the flowchart for a simple PHP program
// Start
// Input a number
// If the number is even, display "Even number"
// If the number is odd, display "Odd number"
// End

$number = 10; // Input number

// Check if the number is even or odd
if ($number % 2 == 0) {
    echo "Even number"; // Display message for even number
} else {
    echo "Odd number"; // Display message for odd number
}

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