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Php 将HTML呈现为PDF文件_Php_Html_Codeigniter_Pdf - Fatal编程技术网

Php 将HTML呈现为PDF文件

Php 将HTML呈现为PDF文件,php,html,codeigniter,pdf,Php,Html,Codeigniter,Pdf,将此类代码呈现为pdf的最佳方式是什么。我研究过不同的图书馆,但我认为它们中没有一个对我有用。我已经详细研究了TCPDF库,但这个库在我的例子中太复杂了,因为我的代码涉及很多css、html和php条件。因此,我在这里得到一些提示,知道我在哪里可以找到这方面有用的东西。以下是我的代码和我的代码之外的代码: <div class="box-container" id="week<?php print $w; ?>" > <div cla

将此类代码呈现为pdf的最佳方式是什么。我研究过不同的图书馆,但我认为它们中没有一个对我有用。我已经详细研究了TCPDF库,但这个库在我的例子中太复杂了,因为我的代码涉及很多css、html和php条件。因此,我在这里得到一些提示,知道我在哪里可以找到这方面有用的东西。以下是我的代码和我的代码之外的代码:

<div class="box-container" id="week<?php print $w; ?>" >
                <div class="roster">
                    <div style="text-align: right;"  class="dontprint">

                        <div style="display:inline;">
                            <label><strong>Dispatch All</strong> <input type="checkbox" name="dispatch-<?php print $w; ?>" value="<?php print $w; ?>"></label>
                        </div>
                        <div style="display:inline;">
                            <a href="#" class="site-roster" rel="week<?php print $w; ?>">
                                <img src="<?php print base_url('images/icon-screenshot.png'); ?>" />
                            </a>
                        </div>
                    </div>

                    <?php $shiftStr = array();  foreach ($schedule['sites'] as $site): ?>
                        <?php if ($site['weekf'] == 'Week '.$w) : ?>

                        <?php $isDispatched[$w][$site["sid"]] = true; ?>

                            <div class="box printr" id="r<?php print $w.'-'.$site["sid"]; ?>">
                                <h4 class="white" align="center"><?php print $site["title"]; ?> - <?php print $site["address"]; ?></h4>
                                <div class="box-container links" style="border:1px solid #CCC">
                                    <table style="width:100%">
                                        <thead>
                                        <tr>
                                            <td style="width:140px;"></td>
                                            <?php
                                            $dateForRoster = ($w == 1) ? $startDate : strtotime("+7 day", $startDate);
                                            ?>
                                            <?php for ($i = 0; $i < 7; $i++) : ?>
                                                <td><?php print date('d-M-y', strtotime("+".$i." day", $dateForRoster)); ?></td>
                                            <?php endfor; ?>
                                            <td colspan="2"></td>
                                        </tr>
                                        <tr>
                                            <td class="col-left"><?php print $site['job_type'] == 1 ? 'CSO' : 'Guard';?></td>
                                            <td>Monday</td>
                                            <td>Tuesday</td>
                                            <td>Wednesday</td>
                                            <td>Thursday</td>
                                            <td>Friday</td>
                                            <td>Saturday</td>
                                            <td>Sunday</td>
                                            <td>Contact</td>
                                            <td>License</td>
                                        </tr>
                                        <tr>
                                            <td colspan="10"><div style="border-bottom:2px solid #ccc; margin:5px 0"></div></td>
                                        </tr>
                                        </thead>
                                        <?php foreach($schedule['guards'] as $guard): ?>
                                            <?php if ($guard['weekf'] == 'Week '.$w && $site['sid'] == $guard['sid']) : ?>
                                                <tr><?php $tot = 0;?>
                                                    <td style="max-width: 140px; overflow: hidden; white-space: nowrap;" class="col-left"><?php print ($guard["guard_name"] != '') ? $guard["guard_name"] : 'Click on each shift to assign guard'; ?></td>

                                                    <?php for ($s = 0; $s < 7; $s++) : ?>
                                                        <td>
                                                            <?php

                                                            if (isset ($schedule['week'][str_replace(' ', '-', $guard['weekf']).'-'.$site['sid'].'-'.$guard['gid']][$s])) {
                                                                $shifts = $schedule['week'][str_replace(' ', '-', $guard['weekf']).'-'.$site['sid'].'-'.$guard['gid']][$s];
                                                                $noOfShifts = count($shifts);

                                                                if ($noOfShifts == 0) { print '-'; }
                                                                else {
                                                                    foreach($shifts as $shift) {

                                                                        $shiftStr[] = array($shift['shift']['shid'], $shift['shift']['dispatched']);
                                                                        $allShifts[] = array($shift['shift']['shid'], $shift['shift']['dispatched']);
                                                                        //print $tot += dateDifference1($shift['shift']['actual_sign_in'], $shift['shift']['actual_sign_out']);
                                                                        $class = $shift['shift']['job_type'];
                                                                        $difference = dateDifference(date('Y-m-d'), $shift['shift']['advised_sign_in']);

                                                                        if ($shift['shift']['gid'] == "") {
                                                                            $class = "unassigned";
                                                                        } else {
                                                                            if ($shift['shift']['training'] == 1)  $class = "training";
                                                                            if ($difference == 0 &&
                                                                                date("Y-m-d", strtotime($shift['shift']['actual_sign_in'])) == "1970-01-01") {
                                                                                $class = "notime";
                                                                            }

                                                                            if (
                                                                                ($shift['shift']['actual_sign_in'] != "" && $shift['shift']['actual_sign_out'] == "") ||
                                                                                ($shift['shift']['actual_sign_in'] == "" && $shift['shift']['actual_sign_out'] != "")
                                                                                ) 
                                                                            {
                                                                                $class = "onlyone";
                                                                            }

                                                                             if (
                                                                                ($shift['shift']['actual_sign_in'] != "" && ($shift['shift']['advised_sign_in'] != $shift['shift']['actual_sign_in'])) ||
                                                                                ($shift['shift']['actual_sign_out'] != "" && ($shift['shift']['advised_sign_out'] != $shift['shift']['actual_sign_out']))
                                                                            ) {
                                                                                $class = "altertime";
                                                                            }
                                                                        }

                                                                        if ($shift['shift']['dispatched'] == "0") $isDispatched[$w][$site["sid"]] = false;

                                                            ?>

                                                                        <a href="#"
                                                                           class = "shift-detail <?php print $class; ?>"
                                                                           shid = "<?php print $shift['shift']['shid'];?>"
                                                                           date = "<?php print date('Y-m-d', strtotime("+".$s." day", $dateForRoster)); ?>"
                                                                           jid = "<?php print $shift['shift']['jid']; ?>"
                                                                           sid = "<?php print $site['sid']; ?>"
                                                                           gid = "<?php print $guard['gid']; ?>">
                                                                            <?php
                                                                                if (/*$difference > 0 &&*/ $shift['shift']['actual_sign_in'] != "" && $shift['shift']['actual_sign_out'] != "" && date("Y-m-d", strtotime($shift['shift']['actual_sign_in'])) != "1970-01-01")
                                                                                    print date('H:i', strtotime($shift['shift']['actual_sign_in'])).' - '.date('H:i', strtotime($shift['shift']['actual_sign_out'])) ;
                                                                                else
                                                                                    print date('H:i', strtotime($shift['shift']['advised_sign_in'])).' - '.date('H:i', strtotime($shift['shift']['advised_sign_out'])) ;
                                                                            ?></a>

                                                                    <?php
                                                                    }
                                                                }
                                                            } else {
                                                                ?>
                                                                <a href="#"
                                                                   class="shift-detail"
                                                                   shid = "0"
                                                                   date = "<?php print date('Y-m-d', strtotime("+".$s." day", $dateForRoster)); ?>"
                                                                   jid = "0"
                                                                   sid = "<?php print $site['sid']; ?>"
                                                                   gid = "<?php print $guard['gid']; ?>">
                                                                    -
                                                                </a>
                                                            <?php
                                                            }
                                                            ?>
                                                        </td>
                                                    <?php endfor; ?>
                                                    <td><a href="#" class="contact"><?php print $guard['mobile_number']; ?></a></td>
                                                    <td><a href="#" class="license"><?php print ($guard['license_number'] != 0) ? $guard['license_number'] : 'N/A'; ?></a></td>
                                                </tr> <?php //print $tot;?>
                                            <?php endif; ?>
                                        <?php endforeach; ?>
                                    </table>

                                    <div style="text-align: right; margin-top:4px; padding-top: 8px; color: #50575A; font-weight:bold; border-top:1px dotted" class="dontprint">

                                        <div style="display:inline; ">
                                            <label>Dispatch <?php print $site["title"]; ?> shifts <input type="checkbox" name="dispatch-<?php print $w.'-'.$site["sid"]; ?>" id="dispatch-<?php print $w.'-'.$site["sid"]; ?>" <?php print ($isDispatched[$w][$site["sid"]]) ? 'checked="checked"' : '' ;?> value='<?php print json_encode($shiftStr);?>'></label>
                                        </div>
                                        <div style="display:inline;">
                                            <a href="#" class="site-roster" rel="r<?php print $w.'-'.$site["sid"]; ?>">
                                                <img src="<?php print base_url('images/icon-screenshot.png'); ?>" />
                                            </a>
                                        </div>
                                    </div>


                                </div>


                                <!-- end of div.box-container -->
                            </div>

                        <?php unset($shiftStr); endif; ?>
                    <?php endforeach; ?>
                </div>
            </div>
            <input type="hidden" name="allshifts-<?php print $w;?>" id="allshifts-<?php print $w;?>" value='<?php print json_encode($allShifts); ?>' /> 
        <?php endfor; ?>
    <?php endif; ?>
</div>
你也可以试试这个,使用PHP到PDF库很容易。。您还可以查看我使用的示例,因为它非常有效。将生成的HTML代码保存在变量中,并将其传递给DOMPDF,如下所示:

$dompdf = new DOMPDF();
$dompdf->load_html($my_pdf_content);
$dompdf->set_paper('a4', 'portrait');
$dompdf->render();
在此之后,您可以保存文件:

file_put_contents('my_pdf.pdf', $dompdf->output());
或强制下载到浏览器中:

$dompdf->stream("dompdf_out.pdf", array("Attachment" => true));
exit(0);

使用TCPDF,这肯定解决了您的问题。可能与我使用DOMPDF创建的PDF重复,但我相信此库中存在速度性能问题。生成10页PDF需要50到60秒,我认为这是不可接受的。你知道有什么办法可以帮我解决这个问题吗?不知道。我只用它来打印发票。最多,我有3页。您还可以尝试缓存这些pdf文件。如果只有少数记录要创建为pdf,或者所有记录都是静态的,则可以运行脚本来创建这些pdf。这种方法唯一的问题是硬盘空间。我是通过搜索“PHPDgenerationoverflow:hidden”来这里的。我对这个CSS代码有问题:(从主题开始部分复制):“最大宽度:140px;溢出:隐藏;空白:nowrap;”。我完全使用DOMPDF,它所做的是剪切文本,但保持行宽大,就像文本没有被剪切一样!我投了反对票。你投了反对票是因为搜索引擎误导了你,而且解决方案不适合你的问题!?你的愤怒误导了你。仔细阅读。我的问题和主题启动者完全一样。可能是部分原因,但在他的示例中,出现了以下CSS代码:style=“max-width:140px;overflow:hidden;white-space:nowrap;”,该代码无法正确地使用DOMPDF生成。我不得不应用PHP文本剪切,而不是一个漂亮的CSS解决方案。