如何使用从数据库中获取的数据在 TCPDF 中制作自定义动态页脚?
问题描述:
我想制作一个包含从数据库中获取的数据的动态页脚.如何扩展TCPDF 类来放入这些数据?
I would like to make a dynamic footer containing data taken from a database. How to extend TCPDF class to put those data in?
// my DB stuff here
$datafromdb = getDataFromDB();
class MYPDF extends TCPDF {
// Page footer
public function Footer() {
// Position at 10 mm from bottom
$this->SetY(-10);
// Set font
$this->SetFont('dejavusans', 'I', 8);
$foot = $datafromdb.'Page '.$this->getAliasNumPage().'/'.$this->getAliasNbPages();
$this->MultiCell(0, 10, $foot, 0, 'C');
}
}
答
你可以添加一个 __construct 方法来传递你的数据.
试试这个:
you can add a __construct method to pass your data.
try this :
// my DB stuff here
$datafromdb = getDataFromDB();
class MYPDF extends TCPDF {
private $datafromdb ;//<-- to save your data
function __construct( $datafromdb , $orientation, $unit, $format )
{
parent::__construct( $orientation, $unit, $format, true, 'UTF-8', false );
$this->datafromdb = $datafromdb ;
//...
}
// Page footer
public function Footer() {
// Position at 10 mm from bottom
$this->SetY(-10);
// Set font
$this->SetFont('dejavusans', 'I', 8);
$foot = $this->datafromdb.'Page '.$this->getAliasNumPage().'/'.$this->getAliasNbPages();
$this->MultiCell(0, 10, $foot, 0, 'C');
}
}