php - 保留使用 tcpdf 创建的 pdf 中的换行符和行间距

Question

我正在使用 tcpdf (php,mysql) 库创建 pdf。我想以 pdf 形式显示数据库中的数据。意味着我想显示换行符和行间距。

示例:假设数据库中的项目副标题是这样的。

    The Philadelphia Foot Patrol Experiment, a randomized control trial 
    conducted by Temple University, has shown that foot patrols reduce 
    crime.

    [1] With the resources to patrol 60 locations, researchers identified 
    the highest violent crime corners in the city, using data from 2006 to 
    2008. Police commanders designed 120 foot patrol areas around these 
    corners, 

但是输出是这样的

    The Philadelphia Foot Patrol Experiment, a randomized control trial 
    conducted by Temple University, has shown that foot patrols reduce 
    crime.[1] With the resources to patrol 60 locations, researchers 
    identified the highest violent crime corners in the city, using data 
    from 2006 to 2008. Police commanders designed 120 foot patrol areas 
    around these corners, 

这是codeigniter中的查看代码，我编写的是生成pdf

    <?php 
    $tcpdf;
    $obj_pdf = new TCPDF('P', PDF_UNIT, PDF_PAGE_FORMAT, true, 'UTF-8', false);
    $obj_pdf->SetCreator(PDF_CREATOR);
    $obj_pdf->SetAuthor('Finvensys Technologies Pvt. Ltd.');
    $obj_pdf->SetTitle('Proposal Writing');
    $obj_pdf->SetHeaderData(PDF_HEADER_LOGO, PDF_HEADER_LOGO_WIDTH, @$table->projectTitle);
    $obj_pdf->setHeaderFont(Array(PDF_FONT_NAME_MAIN,'', 14));
    $obj_pdf->setFooterFont(Array(PDF_FONT_NAME_DATA, '',9));
    $obj_pdf->SetDefaultMonospacedFont('helvetica');
    $obj_pdf->SetHeaderMargin(PDF_MARGIN_HEADER);
    $obj_pdf->SetFooterMargin(PDF_MARGIN_FOOTER);
    $obj_pdf->SetMargins(PDF_MARGIN_LEFT, PDF_MARGIN_TOP, PDF_MARGIN_RIGHT);
    $obj_pdf->SetAutoPageBreak(TRUE, PDF_MARGIN_BOTTOM);
    $obj_pdf->SetFont('helvetica', '', 12);
    $obj_pdf->setFontSubsetting(false);
    $obj_pdf->AddPage();
    ob_start(); ?>

                <table border="1px" align="left" style="width=100%">
                <tr >
                     <td style="width:25%"><b>Project subtitle</b></td>  
                     <td style="width:75%"><?php echo @$table->projectSubTitle; ?></td>
                </tr>
                </table>

    <?php $title=@$table->projectTitle; ?>
    <?php
    $content = ob_get_contents();
    ob_end_clean();
    $obj_pdf->writeHTML($content, true, false, true, false, '');
    $obj_pdf->Output($title.'.pdf', 'I');
    ?> 

Answer 1

这取决于您使用的函数，但很可能您需要使用 <br>而不是\n (标准 LF 字符通常存储在数据库文本字段中)。请参阅861809有关更多详细信息，只需替换 \n (或 \r\n 如果您的文本也有 CR)与 <br>并且 tcpdf 应该正确地为您呈现基本的 HTML 标签。