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我试着去生成wkhtmltopdf一个PDF文件使用PHP：当我运行该脚本生成PDF与wkhtmltopdf
<?php
if(isset($_POST['submit']))
{
require_once("../include/WkHtmlToPdf.php");
?>
<div id="layout">
<div id="top">
<img src="images/logo.png">
<br/><br/><br/>
Net at Once <br/>
Box 177 <br/>
351 04 Växjö
</div>
<div id="addresspos">
<?= $_POST['firstname'] ?> <?= $_POST['lastname'] ?><br/>
<?= $_POST['address'] ?><br/>
<?= $_POST['zip'] ?> <?= $_POST['city'] ?>
</div>
<div id="middle">
<p><?= $_POST['textcontent'] ?>
</div>
<div id="bottomcontent">
<div class="addressinfo">Net at Once Sweden AB</div>
<div class="addressinfo">Adress<br/>Box 177<br/>351 04 Växjö</div>
<div class="addressinfo">Telefon<br/>0771-40 44 00</div>
<div class="addressinfo">Fax<br/>0470-137 77</div>
<div class="addressinfo">E-post/Hemsida<br/>[email protected]<br/>www.netatonce.se</div>
<div class="addressinfo">Org.nr<br/>556506-3491<br/>Godkänd för f-skatt</div>
</div>
</div>
<?php
$pdf = new WkHtmlToPdf;
$pdf->addPage('/var/www/kadm/www/ebrevcreate.php');
$pdf->addToc();
$pdf->saveAs('/var/www/kadm/www/test.pdf');
$pdf->send();
echo "<pre>";
var_dump($pdf);
echo "</pre>";
}
?>
，我收到此错误信息：
"Could not run command '/usr/bin/wkhtmltopdf' '/var/www/kadm/www/ebrevcreate.php' 'toc' /tmp/tmp_WkHtmlToPdf_yrCVEE:
wkhtmltopdf: cannot connect to X server
任何人谁可以帮我吗？