createInvoiceHtml($data); // Convert to basic PDF format return $this->createBasicPdf($html, $data); } private function createInvoiceHtml($data) { $company = $data['company']; $html = ' Invoice #' . $data['invoice_number'] . '

' . $company['name'] . '

' . $company['address'] . ', ' . $company['city'] . '

' . $company['state'] . ' - ' . $company['pincode'] . '

Phone: ' . $company['phone_number'] . '

GST: ' . $company['gst_number'] . '

INVOICE

#' . $data['invoice_number'] . '

Date: ' . $data['date'] . '

Billing Information

Bill To

' . $data['client_name'] . '

' . $data['client_phone'] . '

' . $data['client_address'] . '

Registration Details

ID: ' . $data['registration_id'] . '

Plan: ' . $data['membership_plan'] . '

Contract: ' . $data['contract_period'] . '

Locker Details

'; foreach ($data['items'] as $item) { $html .= ' '; } $html .= '

Locker #	Size	Type	Amount
' . $item['locker_number'] . '	' . $item['size'] . '	' . $item['type'] . '	MR ' . number_format($item['amount'], 2) . '

Subtotal: MR ' . number_format($data['total_amount'], 2) . '

Tax (0%): MR 0.00

TOTAL: MR ' . number_format($data['total_amount'], 2) . '

Calculation Breakdown:

Number of Items: ' . count($data['items']) . ' locker(s)

Amount per Item: MR ' . number_format($data['total_amount'] / count($data['items']), 2) . '

Subtotal: MR ' . number_format($data['total_amount'], 2) . '

Tax (0%): MR 0.00

Total Amount: MR ' . number_format($data['total_amount'], 2) . '

Formula: Total = (Amount per Item × Number of Items) + Tax
Calculation: MR ' . number_format($data['total_amount'] / count($data['items']), 2) . ' × ' . count($data['items']) . ' + MR 0.00 = MR ' . number_format($data['total_amount'], 2) . '

'; return $html; } private function createBasicPdf($html, $data) { // Create a professional text-based PDF $lines = []; $company = $data['company']; // Professional invoice header $lines[] = str_repeat('=', 60); $lines[] = sprintf('%-30s %30s', $company['name'], 'INVOICE #' . $data['invoice_number']); $lines[] = sprintf('%-30s %30s', $company['address'] . ', ' . $company['city'], $data['date']); $lines[] = sprintf('%-30s %30s', $company['state'] . ' - ' . $company['pincode'], ''); $lines[] = sprintf('%-30s %30s', 'Phone: ' . $company['phone_number'], ''); $lines[] = sprintf('%-30s %30s', 'GST: ' . $company['gst_number'], ''); $lines[] = str_repeat('=', 60); $lines[] = ''; // Bill To section $lines[] = 'BILL TO:'; $lines[] = str_repeat('-', 60); $lines[] = sprintf('%-15s %s', 'Client:', $data['client_name']); $lines[] = sprintf('%-15s %s', 'Phone:', $data['client_phone']); $lines[] = sprintf('%-15s %s', 'Address:', $data['client_address']); $lines[] = ''; // Registration Details $lines[] = 'REGISTRATION DETAILS:'; $lines[] = str_repeat('-', 60); $lines[] = sprintf('%-20s %s', 'Registration ID:', $data['registration_id']); $lines[] = sprintf('%-20s %s', 'Membership Plan:', $data['membership_plan']); $lines[] = sprintf('%-20s %s', 'Contract Period:', $data['contract_period']); $lines[] = ''; // Locker Details Table $lines[] = 'LOCKER DETAILS:'; $lines[] = str_repeat('-', 60); $lines[] = sprintf('%-12s %-12s %-12s %20s', 'Locker #', 'Size', 'Type', 'Amount' ); $lines[] = str_repeat('-', 60); foreach ($data['items'] as $item) { $lines[] = sprintf('%-12s %-12s %-12s %20s', $item['locker_number'], $item['size'], $item['type'], 'MR ' . number_format($item['amount'], 2) ); } $lines[] = str_repeat('-', 60); $lines[] = sprintf('%48s %20s', 'TOTAL:', 'MR ' . number_format($data['total_amount'], 2)); $lines[] = str_repeat('=', 60); $lines[] = ''; $lines[] = 'Note: Total includes ' . count($data['items']) . ' locker item(s) at MR ' . number_format($data['total_amount'] / count($data['items']), 2) . ' per item.'; $lines[] = ''; $lines[] = 'This is a system-generated invoice. Thank you for your business!'; $lines[] = str_repeat('=', 60); // Generate PDF content $content = "BT\n/F1 12 Tf\n50 750 Td\n"; $y = 750; foreach ($lines as $line) { $escaped = str_replace(['(', ')', '\\'], ['\\(', '\\)', '\\\\'], $line); $content .= "({$escaped}) Tj\n"; $y -= 15; if ($y < 50) { break; // Prevent going off page } else { $content .= "0 -15 Td\n"; } } $content .= "ET\n"; $length = strlen($content); $pdf = '%PDF-1.4 1 0 obj << /Type /Catalog /Pages 2 0 R >> endobj 2 0 obj << /Type /Pages /Kids [3 0 R] /Count 1 >> endobj 3 0 obj << /Type /Page /Parent 2 0 R /MediaBox [0 0 612 792] /Contents 4 0 R /Resources << /Font << /F1 5 0 R >> >> >> endobj 4 0 obj << /Length ' . $length . ' >> stream ' . $content . ' endstream endobj 5 0 obj << /Type /Font /Subtype /Type1 /BaseFont /Helvetica >> endobj xref 0 6 0000000000 65535 f 0000000009 00000 n 0000000058 00000 n 0000000115 00000 n 0000000274 00000 n 0000000' . (275 + $length) . ' 00000 n trailer << /Size 6 /Root 1 0 R >> startxref ' . (280 + $length) . ' %%EOF'; return $pdf; } }