How to use PDF document function in php language?_PHP tutorial

Written to Hunte:
I haven’t seen you online for a long time, and I feel a bit indescribable. phpuser.com without hunte is nothing. I forwarded two articles on your site, especially Posted this as an apology.

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Original author: Perugini Luca (www.phpbuilder.com)
Translator: znsoft (http://www.phpease.com)
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Please keep the above information when reprinting , otherwise please do not reprint!

PHP bundled with the PDFLIB library may be the best web publishing platform. A pair of typical usages:

Requirement Booklet
E-commerce Shipping Order

Through this guide, you can learn how to use the PDF extension in php4 to create PDF documents.
We also focus on using mysql data to create PDF documents.

Content summary

Install PDFLib 3.0.1 and PHP4.01pl2 with PDF support (Annotation: You can install the latest php4.03pl1)

Extract PDF document
(I assume you have some experience in configuring PHP)

Install PDFLib and PHP with PDF support.

Requirements:

PHP 4.02+ download from http://php.net
PDFLib 3.0.1 download from http://www.pdflib.com

This is a little secret recipe on how to make PDFLib3.0.1 and php4 work together: (foreigners are very humorous^_^)

Download the patch of ext/pdf/pdf.c directly from http://www.php.net to support PDFLib v 3.0.1

Download PDFLib3.0.1 from here http://www.pdflib.com
Applicable patches you can find here http://www.pdflib.com/pdflib/patches.html

Configure, Make and Install PDFLib

#./configure --enabled-shared-pdflib
#make
#make install
You will have PDFLib installed in /usr/local/lib .

Configure PHP
#./configure --with-apxs=/usr/bin/apxs
--with-gd --with-pdflib=/usr/local --with-mysql =/usr/local
--with-config-file-path=/etc/httpd --with-zlib-dir=/usr
--with-ttf=/usr/local/include
--with-jpeg-dir=/usr --with-tiff-dir=/usr
--with-system-regex=yes --enable-debug=no

#make
#make install

Update system libraries
Insert /usr/local/lib into /etc/ld.so.conf (file)

#/sbin/ldconfig

Test and verify
Now you need to restart apache
#apachectl restart

Copy pdfclock.php to the httpd directory (that is, the web directory)...test...everything is normal.

Important information

To make PHPLIb work with fonts you must pay attention to the UPR section in the PDFLib manual.
The simplest way to use fonts with PDFLib is to copy the standard UPR description file (fonts/pdflib.upr) in the PDFlib tar package to your working directory.

Extract PDF documents
Now we have prepared the conditions for generating PDF documents like Enclave!

In this small example we want to generate FLYStore company's requirements brochure, of course extracting data from the catalog database.

Prepare the database
I assume you have some database experience, at a minimum, I really just hope you know how to create a database and insert tables into it.
Create table catalog:

create table catalog(
id smallint(8) unsigned DEFAULT '0' NOT NULL,
item varchar(100) DEFAULT '' NOT NULL,
description tinytext,
img_data longblob,
imgname varchar(60),
imgsize varchar(60),
imgtype varchar(60),
price smallint(8) unsigned DEFAULT '0' NOT NULL,
PRIMARY KEY (id) ,
KEY item (item(20))
);

Send MIME header information
In order for our page to be displayed correctly, we need to send the correct header information to the user's browser.
In PHP we can use the header function to achieve this. The code below sends the correct MIME type to the browser.

header( "Content-type: application/pdf" );
header( "Content-Disposition: attachment; filename=modulo.pdf" );
header( "Content-Description: PHP3 Generated Data" );

Important information
What you must know is that you cannot output anything before sending the header information. A common mistake is having spaces at the beginning of the file.

Get numbers from mysql

Here we use a simple code snippet that extracts data from directory data.

$link = mysql_connect ("127.0.0.1", "flyadm", "flystore")
or die ("Could not connect");

mysql_select_db ("flystore", $link);

$result = mysql_query ("SELECT * FROM catalog", $link)
or die ("Invalid query");

$data = mysql_fetch_row ($result);
....
....
mysql_close ($link);

?>

Generate PDF file

In order to generate a PDF document, we need to go through the following steps:

Open a PDF stream and associate it with a handle:
$pdf = PDF_open();

(Optional) Set document information like Author, Title, Subject, etc
(Optional) Set document information like Author, Title, Subject, etc.

Start a new page (PDF files can use different layouts to generate different pages, such as portrait, foreground...):
PDF_begin_page($pdf, 595, 842);
(optional) Set a hyperlink:
PDF_add_outline($pdf, "Item ".$data[1]);

Select font type, size (pdf_set_font($pdf, "Helvetica-Bold" , 20, winansi);) Expression mode

Insert text at X.y position:
PDF_show_xy($pdf, "Item : " .$data[1], 100, 700);

Or insert the image at X.Y position:
pdf_place_image($pdf, $im, 100, 300, 3);

Flush the text buffer and close the PDF stream.
PDF Coordinate Systems
What we need to do to locate a string or picture in some part of the PDF page,
In many places of the PDF page we need to locate strings and pictures, convert imperial units to DTP Point value.

On page 45 of the PDFLIB manual it says:

".. The origin of the default coordinate system is at the lower left corner of the page, using DTP points as the unit:
1 pt = 1 inch /72 = 25.4mm /72 = 0.3528 mm
"

Here is the code snippet to generate the PDF file:

$pdf = PDF_open();
pdf_set_info_author($pdf, "Luca Perugini");
PDF_set_info_title($pdf, "Brochure for FlyStore");
pdf_set_info_creator($pdf, "See Author ");
pdf_set_info_subject($pdf, "FlyStore");
PDF_begin_page($pdf, 595, 842);
PDF_add_outline($pdf, "Item ".$data[1]);
pdf_set_font($pdf, "Helvetica-Bold" , 20, winansi);
pdf_set_text_rendering($pdf, 0);
pdf_show_xy($pdf, "FlyStore Catalog 2000",50,780);

PDF_show_xy($pdf, "Item : " .$data[1], 100, 700);

PDF_show_xy($pdf, "Description : " .$data[2], 100, 620);

$im = PDF_open_jpeg($pdf, "pass4_sml.jpg");
pdf_place_image($pdf, $im, 100, 300, 3);
pdf_close_image ($im);

pdf_stroke($pdf);
PDF_end_page($pdf);
PDF_close($pdf);

?>

At the end, I want to remind you that this article is not a PDF tutorial. If you need more information and usage of PDF documents, you can visit
http://www.pdfzone.com/ and http:/ /www.planetpdf.com/.

I hope it’s useful to you.

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