使用PDF类库生成PDF文件

类库使用fpdf和fpdi(处理PDF，例如合并PDF和PDF水印处理)
除此之外也可以插入HTML代码来生成PDF文件。
类库下载链接：https://download.csdn.net/download/babayao/10592274

                        $pagesize = 50; //每页条数
                        $num = $num > 5000 ? 5000 : $num;   //总条数
                        $pagenum = ceil($num / $pagesize);  //总页数


                        $file = iconv("UTF-8","gbk",'2018年全网'.$head_title.'-'.$wds['wd'].'.pdf');
                        $pdf = new PDF_Chinese('P','pt','A3');
                        $pdf->AddGBFont('simhei', iconv("UTF-8", "GB2312//IGNORE",'黑体'));

                        $pdf->SetLeftMargin(28);
                        $pdf->SetRightMargin(28);
                        $pdf -> SetTextColor(0,0,0);

                        $pdf->SetFont('simhei', '', 10);
                        $pdf->AddPage();
                        $pdf->Cell (640, 20, iconv("UTF-8","gbk",'2018年全网'.$head_title.'  ------  '.$wds['wd']));
                        $pdf->Cell (100, 20, iconv("UTF-8","gbk",'让目标用户更精准，转化率更高'));
                        $pdf -> Ln(10);
                        $pdf->Cell (740, 20, '---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------');
                        $pdf -> Ln();
                        $pdf -> Write (5, iconv("UTF-8","gbk",'本数据生成时间为' . date('Y年m月d日H点i分').'，您所看到的内容为截止该时间点此关键词的数据快照，共计' . $num . '条。'));
                        $pdf -> Ln(300);
                        $pdf->SetFont('simhei', 'B', 44);
                        $pdf -> Cell(740,30,iconv("UTF-8","gbk",'2018年全网'.$head_title), 0, 0, 'C');
                        $pdf -> Ln(80);
                        $pdf->SetFont('simhei', '', 32);
                        $pdf -> Cell(740,30,iconv("UTF-8","gbk",$wds['wd']), 0, 0, 'C');

                        $pdf -> Ln(650);
                        $pdf -> SetFillColor(0,0,0);
                        $pdf->SetFont('simhei', 'I',8); //设置页脚字体
                        $pdf->Cell (750, 20, iconv("UTF-8","gbk",'2018年全网'.$head_title.'t.gongchang.com/keyword'));
                        $pdf->Cell (50, 20,iconv("UTF-8","gbk", '共' . $pagenum . '页'));
                        $pdf -> SetFillColor(196,221,225);

                        for($p = 1;$p <= $pagenum;$p++) {
                            $pdf->SetFont('simhei', '', 10);
                            $pdf->AddPage();
                            $pdf->Cell (640, 20, iconv("UTF-8","gbk",'2018年全网'.$head_title.'  ------  '.$wds['wd']));
                            $pdf->Cell (100, 20, iconv("UTF-8","gbk",'让目标用户更精准，转化率更高'));
                            $pdf -> Ln(10);
                            $pdf->Cell (740, 20, '---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------');
                            $pdf -> Ln(20);
                            $pdf -> SetFillColor(196,221,225);
                            $pdf -> Cell(160,20,iconv("UTF-8", "gbk",'关键词'), 1, 0, 'C');
                            $pdf -> Cell(90,20,iconv("UTF-8", "gbk",'搜索结果'), 1, 0, 'C');
                            $pdf -> Cell(90,20,iconv("UTF-8", "gbk",'竞价公司数量'), 1, 0, 'C');
                            $pdf -> Cell(90,20,iconv("UTF-8", "gbk",'长尾词数量'), 1, 0, 'C');
                            $pdf -> Cell(90,20,iconv("UTF-8", "gbk",'百度指数'), 1, 0, 'C');
                            $pdf -> Cell(90,20,iconv("UTF-8", "gbk",'百度PC检索量'), 1, 0, 'C');
                            $pdf -> Cell(90,20,iconv("UTF-8", "gbk",'百度移动检索量'), 1, 0, 'C');
                            $pdf -> Cell(93,20,iconv("UTF-8", "gbk",'竞价竞争激烈程度'), 1, 0, 'C');
                            $pdf -> Ln();


                            $offset = ($p-1) * $pagesize;   //当前页
                            $result = $this->db->query("SELECT * FROM destoon_miningword where {$condition} ORDER BY id ASC LIMIT $offset, $pagesize");
                            $a = 1;
                            while ($r = $this->db->fetch_array($result)) {
                                if($a % 2 == 1) {
                                    $pdf -> SetFillColor(212,227,232);
                                } else {
                                    $pdf -> SetFillColor(196,221,225);
                                }
                                $pdf -> Cell(160,20,iconv("UTF-8", "gbk",$r['word']), 1, 0, 'L', TRUE);
                                $pdf -> Cell(90,20,iconv("UTF-8", "gbk",$r['collect_count']), 1, 0, 'C', TRUE);
                                $pdf -> Cell(90,20,iconv("UTF-8", "gbk",$r['bidword_company_count']), 1, 0, 'C', TRUE);
                                $pdf -> Cell(90,20,iconv("UTF-8", "gbk",$r['long_keyword_count']), 1, 0, 'C', TRUE);
                                $pdf -> Cell(90,20,iconv("UTF-8", "gbk",$r['baidu_index']), 1, 0, 'C', TRUE);
                                $pdf -> Cell(90,20,iconv("UTF-8", "gbk",$r['bidword_kwc']), 1, 0, 'C', TRUE);
                                $pdf -> Cell(90,20,iconv("UTF-8", "gbk",$r['bidword_pcpv']), 1, 0, 'C', TRUE);
                                $pdf -> Cell(93,20,iconv("UTF-8", "gbk",$r['bidword_wisepv']), 1, 0, 'C', TRUE);
                                $pdf -> Ln();
                                $a = $a + 1;
                            }
                            $pdf -> Ln(10);
                            $pdf -> SetFillColor(0,0,0);
                            $pdf->SetFont('simhei', 'I',8); //设置页脚字体
                            $pdf->Cell (750, 20, iconv("UTF-8","gbk",'2018年全网'.$head_title.'t.gongchang.com/keyword'));
                            $pdf->Cell (50, 20,iconv("UTF-8","gbk", $p .'/' . $pagenum));
                        }
                        $pdf->Output('../file/miningword/' . $file,'F');

                        $ipdf = new FPDI();
                        $pageCount = $ipdf->setSourceFile('../file/miningword/' . $file);
                        for ($pageNo = 1; $pageNo <= $pageCount; $pageNo++)
                        {
                            $templateId = $ipdf->importPage($pageNo);
                            $size = $ipdf->getTemplateSize($templateId);
                            if ($size['w'] > $size['h']) {
                                $ipdf->AddPage('L', array($size['w'], $size['h']));
                            } else {
                                $ipdf->AddPage('P', array($size['w'], $size['h']));
                            }
                            $ipdf->useTemplate($templateId);
                            $ipdf->image(DT_ROOT . "/api/fpdf/shuiyin.png", 0, 0, 300, 500);
                        }
                        $ipdf->Output('../file/miningword/' . $file,'F');