PHP 库如何帮助根据 PDF 平面图绘制座位位置​​地图？

// Create an FPDF object
$pdf = new FPDF();
// Open the PDF file
$pdf->AddPage();
$pdf->setSourceFile('floor_map.pdf');
// Loop through the pages of the PDF file
for ($i = 1; $i <= $pdf->setSourceFile('floor_map.pdf')->getNumPages(); $i++) {
  // Get the current page
  $page = $pdf->importPage($i);
  // Search for text containing seat location information
  $text = $pdf->getTextFromPage($page);
  // Process the text to extract seat locations and coordinates
}