What steps can be taken to troubleshoot and identify missing or incomplete code in a PHP script?

To troubleshoot and identify missing or incomplete code in a PHP script, you can start by checking for syntax errors, missing semicolons, or unmatched brackets. You can also use debugging tools like Xdebug or print statements to track the flow of the code and identify any missing or incomplete sections. Additionally, reviewing the logic of the script and comparing it with the expected behavior can help pinpoint any missing or incomplete code.

// Example PHP code snippet to troubleshoot and identify missing or incomplete code

// Check for syntax errors and missing semicolons
if ($condition) {
    // Incomplete code block
    // Add missing code here
}

// Use print statements to track the flow of the code
echo "Debug point 1";

// Review the logic of the script and compare it with expected behavior
if ($variable == 'value') {
    // Incomplete code block
    // Add missing code here
}