PDF_info_textline()
(PECL pdflib >= 2.1.0)
Perform textline formatting and query metrics
说明
PDF_info_textline(resource $pdfdoc,string $text,string $keyword,string $optlist):float
Performs textline formatting and queries the resulting metrics.
You can use PDF_info_textline to center some text in the page. Here's a little function <?php // Parameters: // $p -> the PDF handle // $text -> the text to center // $posy -> the vertical position of the text // $pageWidth -> the width of the page, defaults to 595 (A4) function center_text($p, $text, $posy, $pageWidth=595) { $width = PDF_info_textline($p, $text, 'width', ''); PDF_fit_textline($p, $text, ($pageWidth-$width)/2, $posy, ''); } ?>