<?php
// Include the FPDF library
require('fpdf/fpdf.php');

class PDF extends FPDF {
    // Page header
    function Header() {
        $this->SetFont('Arial', 'B', 15);
        $this->Cell(0, 10, 'Employee Report', 0, 1, 'C');
        $this->Ln(10);
    }

    // Table generation function
    function CreateTable($header, $data) {
        // 1. Column Widths
        $w = array(30, 50, 50, 40);

        // 2. Header Style
        $this->SetFillColor(232, 232, 232); // Light Gray Background
        $this->SetTextColor(0);             // Black Text
        $this->SetFont('Arial', 'B', 12);    // Bold Font

        // Print Header Rows
        for($i = 0; $i < count($header); $i++) {
            // Cell(Width, Height, Text, Border, Position, Alignment, Fill)
            $this->Cell($w[$i], 7, $header[$i], 1, 0, 'C', true);
        }
        $this->Ln(); // Move to next line

        // 3. Data Rows Style
        $this->SetFont('Arial', '', 12); // Regular font for data
        
        // Print Data Rows
        foreach($data as $row) {
            $this->Cell($w[0], 6, $row[0], 1, 0, 'C');
            $this->Cell($w[1], 6, $row[1], 1, 0, 'L');
            $this->Cell($w[2], 6, $row[2], 1, 0, 'L');
            $this->Cell($w[3], 6, '$' . number_format($row[3]), 1, 0, 'R'); // Right align currency
            $this->Ln(); // Move to next line
        }
    }
}

// Instantiate and build the PDF
$pdf = new PDF();
$pdf->AddPage();

// Column headers
$header = array('ID', 'First Name', 'Last Name', 'Salary');

// Sample Data Array (Can be pulled dynamically from a database)
$data = array(
    array('101', 'John', 'Doe', 45000),
    array('102', 'Jane', 'Smith', 52000),
    array('103', 'Robert', 'Johnson', 61000),
);

$pdf->CreateTable($header, $data);
$pdf->Output('I', 'report.pdf'); // View in browser
?>