PDF_get_value

(PHP 4 >= 4.0.1, PECL pdflib >= 1.0.0)

PDF_get_value — Get numerical parameter

说明

float PDF_get_value ( resource $p , string $key , float $modifier )

Gets the value of some PDFlib parameter with numerical type.

PHP手册 - N: Get numerical parameter

用户评论:

(02-Feb-2006 03:29)

Note: imagewidth and imageheigh do not return the actual width and height. Instead they are 2 times the actual width and height. I don't understand why, but this seems to be the case with multi page tiffs (and maybe other images). In order to insert a multi page tiff into a PDF without out of control extra space do the following: <?php $pdf = pdf_new(); pdf_set_parameter($pdf, "licensefile", "/etc/pdflib/licensekeys.txt"); pdf_open_file($pdf, "/tmp/tifftest.pdf"); for ($i=1; $i<=4; $i++) { $image = pdf_open_image_file($pdf, "tiff", "/tmp/test.tif", "page", $i); $w = pdf_get_value($pdf, "imagewidth", $image); $h = pdf_get_value($pdf, "imageheight", $image); // $w and $h are at this point 2*width and 2*height!! // To place the image without having lots of extra space: pdf_begin_page($pdf, $w/2, $h/2); pdf_place_image($pdf, $image, 0, 0, 0.5); pdf_close_image($pdf, $image); pdf_end_page($pdf); } pdf_close($pdf); ?>

(25-Jul-2005 10:10)

$width = PDF_get_value($p, "imagewidth", $image);

_meto ALT+q web.de (19-Jun-2004 05:58)

There should be many more. For example I found this in the manual, wich was very helpfull for me: $textx = pdf_get_value($p, "textx", 0); $texty = pdf_get_value($p, "texty", 0); These will extract the current textposition in the document.

robert.chambersATroche.com (26-Nov-2003 04:41)

The Magic keywords are: IMAGEWIDTH, IMAGEHEIGHT, RESX, RESY, CAPHEIGHT, ASCENDER, DESCENDER, FONT I looked in the sourcecode ...

ceo at l-i-e dot com (24-Feb-2002 06:13)

See the main PDF manual page (the "PDF" link to the left) for the magic words that this function accepts.

reneATcola.cc (01-Mar-2001 04:32)

To get the current font size, use something like this: <?php $fontheight = PDF_get_value($pdf, "fontsize"); ?>