PDF_rect()

(PHP 4, PECL pdflib >= 1.0.0)

Draw rectangle

说明

PDF_rect(resource $p,float $x,float $y,float $width,float $height): bool

Draws a rectangle.成功时返回TRUE，或者在失败时返回FALSE。

This section of the manual is really sparse, and there don't seem to be any tutorials out there that go beyond adding a single line of text, so I found this piece of information out by trial and error.
The function only specifies that you want a rectangle at those co-ordinates, and must be followed by a stroke command:
 pdf_rect($pdf, 100, 100, 50, 50);
 pdf_stroke($pdf);
This completes the process of placing the rectangle on the page.

Be sure of adding a pdf_stroke(resource_pdf) after the pdf_rect function or will take an error in the PDFlib.

Round rectangles
My function to create rectangles width round corners:
<?php
function pdf_roundrect($pdfobj, $xpos, $ypos, $xsize, $ysize, $radius)
{
 $ypos = $ypos+$ysize;
 pdf_moveto($pdfobj, $xpos, $ypos-$radius);
 pdf_lineto($pdfobj, $xpos, $ypos-$ysize+$radius);
 pdf_arc($pdfobj, $xpos+$radius, $ypos-$ysize+$radius, $radius, 180, 270);
 pdf_lineto($pdfobj, $xpos+$xsize-$radius, $ypos-$ysize);
 pdf_arc($pdfobj, $xpos+$xsize-$radius, $ypos-$ysize+$radius, $radius, 270, 360);
 pdf_lineto($pdfobj, $xpos+$xsize, $ypos-$radius);
 pdf_arc($pdfobj, $xpos+$xsize-$radius, $ypos-$radius, $radius,0,90);
 pdf_lineto($pdfobj, $xpos+$radius, $ypos);
 pdf_arc($pdfobj, $xpos+$radius, $ypos-$radius, $radius,90,180);
}
?>

In php5 a rectangle with some text in is made like this.
<?php
$p->rect(55,520,400,20);
$p->stroke();
$font = $p->load_font("Helvetica", "winansi", "");
$p->setfont($font, 14.0);
$p->set_text_pos(200, 525);
$p->show("Some text");
?>