How can PHP developers efficiently troubleshoot and debug code errors related to variable assignments and comparisons?

To efficiently troubleshoot and debug code errors related to variable assignments and comparisons in PHP, developers can use tools like var_dump() or print_r() to display the values of variables and ensure they are what they expect. Additionally, using === for strict comparisons can help avoid unexpected type conversions. Finally, checking for typos or syntax errors in variable names or comparisons can also help identify and resolve issues quickly.

// Example code snippet demonstrating efficient debugging techniques for variable assignments and comparisons
$variable = 10;

// Use var_dump() to display the value and type of the variable
var_dump($variable);

// Perform a strict comparison using === to ensure both value and type match
if ($variable === 10) {
    echo "Variable is equal to 10";
} else {
    echo "Variable is not equal to 10";
}