Как создать pdf-файл с php?

Question

Я хочу создать очень простой pdf с php, который будет загружен при загрузке страницы.

Это моя страница pdf.php

<?php 
$p = PDF_new(); 

if (PDF_begin_document($p, "", "") == 0) { 
    die("Error: " . PDF_get_errmsg($p)); 
} 

PDF_set_info($p, "Creator", "hallo.php"); 
PDF_set_info($p, "Author", "Rainer Schaaf"); 
PDF_set_info($p, "Title", "Hallo Welt (PHP)!"); 

PDF_begin_page_ext($p, 595, 842, ""); 

$font = PDF_load_font($p, "Helvetica-Bold", "winansi", ""); 

PDF_setfont($p, $font, 24.0); 
PDF_set_text_pos($p, 50, 700); 
PDF_show($p, "Hallo Welt!"); 
PDF_continue_text($p, "(sagt PHP)"); 
PDF_end_page_ext($p, ""); 

PDF_end_document($p, ""); 

$buf = PDF_get_buffer($p); 
$len = strlen($buf); 

header("Content-type: application/pdf"); 
header("Content-Length: $len"); 
header("Content-Disposition: inline; filename=hallo.pdf"); 
print $buf; 

PDF_delete($p); 
?> 

Когда я загружаю pdf.php я получаю пустую страницу и ничего не происходит. Я что-то забыл?

Answer 1

Вот шаг за шагом учебник:

1. скачать TCPDF: https://sourceforge.net/projects/tcpdf/
2. Поместите скачанный папку tcpdf в той же папке, где у вас есть свой create-pdf.php.

Это пример для create-pdf.php:

<?php 

/** 
* Creates an example PDF TEST document using TCPDF 
* @package com.tecnick.tcpdf 
* @abstract TCPDF - Example: Default Header and Footer 
* @author Nicola Asuni 
* @since 2008-03-04 
*/ 

// Include the main TCPDF library (search for installation path). 
require_once('tcpdf/tcpdf.php'); 

// create new PDF document 
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false); 

// set document information 
$pdf->SetCreator(PDF_CREATOR); 
$pdf->SetAuthor('Nicola Asuni'); 
$pdf->SetTitle('TCPDF Example 001'); 
$pdf->SetSubject('TCPDF Tutorial'); 
$pdf->SetKeywords('TCPDF, PDF, example, test, guide'); 

// set default header data 
$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE.' 001', PDF_HEADER_STRING, array(0,64,255), array(0,64,128)); 
$pdf->setFooterData(array(0,64,0), array(0,64,128)); 

// set header and footer fonts 
$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN)); 
$pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA)); 

// set default monospaced font 
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED); 

// set margins 
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT); 
$pdf->SetHeaderMargin(PDF_MARGIN_HEADER); 
$pdf->SetFooterMargin(PDF_MARGIN_FOOTER); 

// set auto page breaks 
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM); 

// set image scale factor 
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO); 

// set some language-dependent strings (optional) 
if (@file_exists(dirname(__FILE__).'/lang/eng.php')) { 
    require_once(dirname(__FILE__).'/lang/eng.php'); 
    $pdf->setLanguageArray($l); 
} 

// --------------------------------------------------------- 

// set default font subsetting mode 
$pdf->setFontSubsetting(true); 

// Set font 
// dejavusans is a UTF-8 Unicode font, if you only need to 
// print standard ASCII chars, you can use core fonts like 
// helvetica or times to reduce file size. 
$pdf->SetFont('dejavusans', '', 14, '', true); 

// Add a page 
// This method has several options, check the source code documentation for more information. 
$pdf->AddPage(); 

// set text shadow effect 
$pdf->setTextShadow(array('enabled'=>true, 'depth_w'=>0.2, 'depth_h'=>0.2, 'color'=>array(196,196,196), 'opacity'=>1, 'blend_mode'=>'Normal')); 

// Set some content to print 
$html = <<<EOD 
<h1>Welcome to <a href="http://www.tcpdf.org" style="text-decoration:none;background-color:#CC0000;color:black;">&nbsp;<span style="color:black;">TC</span><span style="color:white;">PDF</span>&nbsp;</a>!</h1> 
<i>This is the first example of TCPDF library.</i> 
<p>This text is printed using the <i>writeHTMLCell()</i> method but you can also use: <i>Multicell(), writeHTML(), Write(), Cell() and Text()</i>.</p> 
<p>Please check the source code documentation and other examples for further information.</p> 
<p style="color:#CC0000;">TO IMPROVE AND EXPAND TCPDF I NEED YOUR SUPPORT, PLEASE <a href="http://sourceforge.net/donate/index.php?group_id=128076">MAKE A DONATION!</a></p> 
EOD; 

// Print text using writeHTMLCell() 
$pdf->writeHTMLCell(0, 0, '', '', $html, 0, 1, 0, true, '', true); 

// --------------------------------------------------------- 

// Close and output PDF document 
// This method has several options, check the source code documentation for more information. 
$pdf->Output('example_001.pdf', 'I'); 

//============================================================+ 
// END OF FILE 
//============================================================+ 

Других примеров: https://tcpdf.org/examples/

Видеоурок: