PHP 使用 FPDF 生成 Header 和 Footer

require("fpdf.php");
class MyPDF extends FPDF
{
    function header()
    {
        global $title;
        $this->setFont("Times", '', 12);
        $this->setDrawColor(0, 0, 180);
        $this->setFillColor(230, 0, 230);
        $this->setTextColor(0, 0, 255);
        $this->setLineWidth(1);

        $width = $this->getStringWidth($title) + 150;
        $this->cell($width, 9, $title, 1, 1, 'C', 1);
        $this->ln(10);
    }

    function footer()
    {
        //Position at 1.5 cm from bottom
        $this->setY(-15);
        $this->setFont("Arial", 'I', 8);
        $this->cell(0, 10,
        "This is the page footer -> Page {$this->pageNo()}/{nb}", 0, 0, 'C');
    }
}

$title = "FPDF Library Page Header";

$pdf = new MyPDF('P', 'mm', 'Letter');
$pdf->aliasNbPages();
$pdf->addPage();
$pdf->setFont("Times", '', 24);
$pdf->cell(0, 0, "some text at the top of the page", 0, 0, 'L');
$pdf->ln(225);
$pdf->cell(0, 0, "More text toward the bottom", 0, 0, 'C');
$pdf->addPage();
$pdf->setFont("Arial", 'B', 15);
$pdf->cell(0, 0, "Top of page 2 after header", 0, 1, 'C');
$pdf->output();

ref: ProgrammerPHP p.259