PDF_save

(PHP 4, PECL pdflib >= 1.0.0)

PDF_save — Save graphics state

说明

PDF_save ( resource $p ) : bool

Saves the current graphics state. 成功时返回 TRUE，或者在失败时返回 FALSE。

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User Contributed Notes 1 note

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bob at nijman dot de ¶

17 years ago


By playing around with this you'll get a better understanding of what pdf_save and pdf_restore do.



<?php



//Create & Open PDF-Object

$pdf = pdf_new();

pdf_open_file($pdf);

pdf_set_info($pdf, "Author","Bob Nijman");

pdf_set_info($pdf, "Title","Sponsored by www.nijman.de");

pdf_set_info($pdf, "Creator", "See Author");

pdf_set_info($pdf, "Subject", "pdf_restore");

pdf_begin_page($pdf, 300, 300);





/*

By encapsulating the changes we make to the coordinate system

(pdf_translate() and pdf_rotate()) between pdf_save() and pdf_restore

we give these changes only local scope.

*/



/*

SMALL RECTANGLE

*/



pdf_save($pdf);

//move the origin of the coordinate system to (100,100)

pdf_translate($pdf, 100, 100);

//Rotate the coordinate system by 45 degrees.

pdf_rotate($pdf, 45);

//Draw a samll rectangle

pdf_rect($pdf, 0, 0, 20, 20);

pdf_stroke($pdf);

//Restore the graphics state to the way it was

//before we started to translate and rotate

pdf_restore($pdf);





/*

LARGER RECTANGLE

*/



pdf_save($pdf);

//move the origin of the coordinate system to (10,20)

pdf_translate($pdf, 10, 20);

//Rotate the coordinate system by 15 degrees.

pdf_rotate($pdf, 15);

//Draw a larger rectangle

pdf_rect($pdf, 0, 0, 40, 40);

pdf_stroke($pdf);

//Restore the graphics state to the way it was

//before we started to translate and rotate

pdf_restore($pdf);







//close it up

pdf_end_page($pdf);

pdf_close($pdf);

$data = pdf_get_buffer($pdf);

header('Content-type: application/pdf');

header('Content-disposition: inline; filename=nijman.pdf');

header('Content-length: ' . strlen($data));

echo $data;



?>



Thanx to:

http://www.dynamicwebpages.de/50.tutorials.php?dwp_tutorialID=11

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官方地址：https://www.php.net/manual/en/function.pdf-save.php

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PDF_save

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