PDF_stringwidth

(PHP 4, PECL pdflib >= 1.0.0)

PDF_stringwidth — Return width of text

说明

float PDF_stringwidth ( resource $p , string $text , int $font , float $fontsize )

Returns the width of text in an arbitrary font.

PHP手册 - N: Return width of text

用户评论:

rross at mNoOoSnPsAoMfvega dot com (10-Nov-2005 12:27)

One thing I came across, and hope is useful to someone, is the following. If you're looking to use the pdf_stringwidth() function, and expecting it to give you the proper results when trying to center or position the text, try to avoid using this line in your code: <? pdf_set_parameter($pdf, "textformat", "utf8"); ?> I discovered (after much hair-pulling of what remains of my hair) that this line of code increases the amount of space between characters by roughly 100%. Removing this line of code made the text on my generated PDF's significantly tighter and more appealing.

smilingrasta FROM gmx dot net (19-Jul-2005 05:42)

With upgrading to PHP5, i had to switch to a newer version of pdflib (v6), where some functions slightly differ from the old version(v5). The new parameters for this function are: <?php float PDF_stringwidth(PDF *p, const char *text, int font, float size); ?> pdf_stringwidth() does only take 2 parameters in the old version. Now 5 parameters are required. As they aren't listed here, i thought i could do that :> <?php # first, we have to find the font, we are using $fontID = pdf_findfont($pdf, 'Courier', 'host', 0); # then we can call pdf_stringwidth $width = pdf_stringwidth($pdf,$string, $fontID, $fontsize)); ?> Maybe that helps someone out.

farzal at hotmail dot com (27-Jul-2001 01:51)

with font COURIER and fontsize of 12, you can print 10 CPI (Characters per inch) or 1 character every 7.2 points. This means, on an A4 page of size (595,842), with a printable area of (451,662) after leaving 1" blank on each side, one can print 451/7.2 ~= 62 characters. If one is building tables after quering databases, this is a way to figure out if you can print all your columns in a page, or if you need to use landscape, or if you need to reduce the font size.