What steps can be taken to troubleshoot and resolve issues related to linking and passing variables in PHP scripts for generating documents like contracts and invoices?

Issue: When passing variables in PHP scripts for generating documents like contracts and invoices, it is important to ensure that the variables are properly linked and passed to the document generation function. If variables are not being correctly passed or linked, the document may not display the expected information. To troubleshoot and resolve this issue, verify that the variables are correctly defined and assigned values before passing them to the document generation function. Additionally, check for any syntax errors or typos in the variable names or function calls that may be causing the issue.

// Define and assign values to variables
$contract_number = "CON-123";
$customer_name = "John Doe";
$amount_due = 1000.00;

// Pass variables to document generation function
generate_contract($contract_number, $customer_name, $amount_due);

// Function to generate contract document
function generate_contract($contract_number, $customer_name, $amount_due) {
    // Generate contract document using variables
    echo "Contract Number: " . $contract_number . "<br>";
    echo "Customer Name: " . $customer_name . "<br>";
    echo "Amount Due: $" . $amount_due;
}