TCPDF - 如何使打印更快？非常非常慢，1320条记录花了40分钟

发布于 2024-12-16 19:54:18 字数 1581 浏览 1 评论 0原文

使用 Zend 框架和 TCPDF 打印 Test.pdf 需要 40 分钟。我现在不知道如何将这种不正常的时间缩短到正常的时间？

set_time_limit(0);
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE, PDF_HEADER_STRING);
$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
$pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
$pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
$pdf->SetFooterMargin(PDF_MARGIN_FOOTER);
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
$pdf->setLanguageArray($l);
$pdf->setFontSubsetting(true);
$pdf->SetFont('dejavusans', '', 8, '', true);
$pdf->AddPage();
/* Database mysql gives the records and it is wrapped with <table> */
$html = "<table>1310 records.... with some simple <tr><td></td></tr></table>";
$pdf->writeHTMLCell($w=0, $h=0, $x='', $y='', $html, $border=0, $ln=1, $fill=0, $reseth=true, $align='', $autopadding=true);
$pdf->Output('Test.pdf', 'I');
exit;

后续：（调整性能）

1）php.ini：内存限制 = 512M max_execution_time = 0

2) 编码 $pdf->setFontSubsetting(false); // true 到 false

3) 调试显示，花费整个时间

$pdf->writeHTMLCell($w=0, $h=0, $x='', $y='', $html, $border= 0、$ln=1、$fill=0、$reseth=true、$align=''、$autopadding=true);

原文

Using Zend framework and TCPDF this is taking 40 minutes to print the Test.pdf. I having now no idea how to reduce this abnormal time to something normal?

set_time_limit(0);
$pdf = new TCPDF(PDF_PAGE_ORIENTATION, PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
$pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, PDF_HEADER_TITLE, PDF_HEADER_STRING);
$pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN, '', PDF_FONT_SIZE_MAIN));
$pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '', PDF_FONT_SIZE_DATA));
$pdf->SetDefaultMonospacedFont(PDF_FONT_MONOSPACED);
$pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
$pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
$pdf->SetFooterMargin(PDF_MARGIN_FOOTER);
$pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);
$pdf->setImageScale(PDF_IMAGE_SCALE_RATIO);
$pdf->setLanguageArray($l);
$pdf->setFontSubsetting(true);
$pdf->SetFont('dejavusans', '', 8, '', true);
$pdf->AddPage();
/* Database mysql gives the records and it is wrapped with <table> */
$html = "<table>1310 records.... with some simple <tr><td></td></tr></table>";
$pdf->writeHTMLCell($w=0, $h=0, $x='', $y='', $html, $border=0, $ln=1, $fill=0, $reseth=true, $align='', $autopadding=true);
$pdf->Output('Test.pdf', 'I');
exit;

Follow up: (tune the performance)

1) php.ini:
memory_limit = 512M
max_execution_time = 0

2) Codeing
$pdf->setFontSubsetting(false); // true to false

3) Debug shows, following taking the whole time

$pdf->writeHTMLCell($w=0, $h=0, $x='', $y='', $html, $border=0, $ln=1, $fill=0, $reseth=true, $align='', $autopadding=true);

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昵称有卵用 2024-12-23 19:54:18

由于没有其他答案，我强烈建议您仔细阅读 MPDF (GPL)，因为它是比 TCPDF 快得多。我曾在一台服务器上进行过操作，使用 TCPDF 大约需要三分钟，而使用 MPDF 将其缩短到几秒。我只会假设我的 HTML 的某种格式 -> PDF 遇到了 TCPDF 中一些低效的功能。

无论如何，我提供了以下代码来帮助我转换 HTML -> PDF。

$mpdf = new mPDF('c');
$mpdf->setDisplayMode('fullpage');
$stylesheet = file_get_contents('css/core.css');
$mpdf->WriteHTML($stylesheet,1);
$html = "<table>1310 records.... with some simple <tr><td></td></tr></table>";
$mpdf->WriteHTML($html); 
$mpdf->Output(standardize(ampersand('filename', false)) . '.pdf', 'D');

此代码提供了作为可下载文件输出的 PDF，MPDF 文档提供了许多其他示例来满足您的需求。

Since no other answers have been forthcoming, I would highly recommend a good look at MPDF (GPL) as it's much faster than TCPDF. I've had operations on one server that took approx three minutes using TCPDF being reduced to seconds with MPDF. I would only assume that some format of my HTML -> PDF was hitting some inefficient function in TCPDF.

Anyway I present the following code which helped me convert HTML -> PDF.

$mpdf = new mPDF('c');
$mpdf->setDisplayMode('fullpage');
$stylesheet = file_get_contents('css/core.css');
$mpdf->WriteHTML($stylesheet,1);
$html = "<table>1310 records.... with some simple <tr><td></td></tr></table>";
$mpdf->WriteHTML($html); 
$mpdf->Output(standardize(ampersand('filename', false)) . '.pdf', 'D');

This code provides a PDF outputted as a downloadable file, the MPDF documentation gives lots of other examples to suit your needs.

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