Php Code : Defining Patterns In PDFLib

Defining Patterns in PDFLib in php

 
<?php

    define('PAGE_WIDTH', 612);
    define('PAGE_HEIGHT', 792);

    $pdf = pdf_new();
    pdf_begin_document($pdf, "", "");

    $pattern = pdf_begin_pattern($pdf, 21, 21, 22, 22, 1);
    pdf_setcolor($pdf, "stroke", "rgb", 0.0, 0.0, 1.0, 0);
    pdf_circle($pdf, 11, 11, 10);
    pdf_stroke($pdf);
    pdf_end_pattern($pdf);

    pdf_begin_page($pdf, PAGE_WIDTH, PAGE_HEIGHT);

    pdf_setcolor($pdf, "fill", "pattern", $pattern, 0, 0, 0);
    pdf_circle($pdf, PAGE_WIDTH/2, PAGE_HEIGHT/2, 150);
    pdf_fill_stroke($pdf);

    pdf_end_page($pdf);
    pdf_end_document($pdf, "");

    $data = pdf_get_buffer($pdf);
    header('Content-type: application/pdf');
    header("Content-disposition: inline; filename=mypdf.pdf");
    header("Content-length: " . strlen($data));
    echo $data;

?>