php create pdf

1<?php
2//install Dompdf library at link below:
3//https://github.com/dompdf/dompdf
4use Dompdf\Dompdf;
5session_start();
6
7  // Include the database
8  $servername = "";
9  $username = "";
10  $password = "";
11  $dbname = "";
12
13  // Create connection
14  $conn = new mysqli($servername, $username, $password, $dbname);
15  // Check connection
16  if ($conn->connect_error) {
17  die("Connection failed: " . $conn->connect_error);
18  }  
19
20    $html = '<table border=1>';	
21    $html .= '<thead>';
22    $html .= '<tr>';
23    $html .= '<th>ID</th>';
24    $html .= '<th>Collum1</th>';
25    $html .= '<th>Collum2</th>';
26    $html .= '<th>Collum3</th>';
27    $html .= '</tr>';
28    $html .= '</thead>';
29    $html .= '<tbody>';
30    
31    $sql = "SELECT * FROM tableName";
32    $sql = mysqli_query($conn, $sql);
33    while($row = mysqli_fetch_assoc($sql)){      
34      $html = ''; // your html code		
35    }   
36
37    // include autoloader
38    require_once("dompdf/autoload.inc.php");
39
40    //Create instance
41    $dompdf = new DOMPDF();
42    
43    // Upload your HTML code
44    $dompdf->load_html('
45        <h1 style="text-align: center;">RentCar</h1>
46        '. $html .'
47      ');
48
49    //Render html
50    $dompdf->render();
51
52    //Create and output the pdf 
53    $pdf = $dompdf->output();
54
55    //Visualize the page
56    $dompdf->stream(
57      "form.pdf", 
58      array(
59        "Attachment" => false //To download turn it to true, to preview pdf turn it to false
60      )
61    );
62
63?>