生成Pdf时出现PHP FPDF错误
我正在尝试使用Fpdf生成pdf。但是在提交按钮时我收到了这个错误。
致命错误：未捕获的异常＆＃39;异常＆＃39;消息＆＃39; FPDF错误：某些数据已经输出，无法发送PDF文件（输出从C：\ xampp \ htdocs \ AutoMall2 \ testindex.php：237开始）＆＃39;在C：\ xampp \ htdocs \ AutoMall2 \ fpdf \ fpdf.php：271堆栈跟踪：＃0 C：\ xampp \ htdocs \ AutoMall2 \ fpdf \ fpdf.php（1040）：FPDF-＆gt;错误（＆＃39;有些数据有...＆＃39;）＃1 C：\ xampp \ htdocs \ AutoMall2 \ fpdf \ fpdf.php（987）：FPDF-＆gt; _checkoutput（）＃2 C：\ xampp \ htdocs \ AutoMall2 \ testindex.php（274）：FPDF->输出（＆＃39; 2017-04-0313.pd ...＆＃39;，＃39; I＆＃39;）＃3 {main}在C中抛出：第271行\ xampp \ htdocs \ AutoMall2 \ fpdf \ fpdf.php
我已经搜索过这个错误，但没有成功我也看到了一些类似的问题，但是相同。
<?php
include_once('connect.php');
date_default_timezone_set("Asia/Karachi");
$date=date("Y-m-d");
$time=date("h:i:s A");
?>
<!DOCTYPE html>
<html>
<head>
<title>Car Parking System</title>
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
<link rel="stylesheet" href="css/bootstrap-theme.css"/>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="js/bootstrap.min.js" type="text/javascript"></script>
</head>
<style type="text/css">
body{
background: #222222;
}
label{
color: white;
font-size: 1.4em;
text-transform: uppercase;
font-family: 'gatepassfont';
font-weight: 600;
}
.heading
{
color:white;
}
table tr td
{
padding: 50px;
}
.custom_button
{
background:red;
color:white;
padding:4px 20px 4px 20px;
font-weight: 50px;
font-size: 24px;
/*margin:0px 0px 0px 115px;*/
}
.custom_button:hover
{
background:#b30000;
color:white;
}
.select_text
{
border-radius: 0px;
background:#4d4d4d;
color:white;
border-style: none;
font-size: 1.2em;
text-transform: uppercase;
font-family: 'gatepassfont';
font-weight: 100;
}
.textbox_color
{
background:#4d4d4d;
color:white;
border-style: none;
border-radius:0px;
font-family: 'gatepassfont';
font-size: 1.2em;
/*text-transform: uppercase;*/
font-weight: 100;
}
@font-face {
font-family: 'gatepassfont';
src: url('BebasNeue-webfont.woff') format('woff');/* Super Modern Browsers */
}
h2.gatepass
{
/*border-bottom:solid 5px #fa565a;*/
padding-top: 5px;
padding-bottom: 5px;
font-family: 'gatepassfont';
font-size: 2em;
background:#ed1c24 ;
font-weight: 300;
padding-right: -200px;
}
.logo
{
width:250px;
height:auto;
padding: 10px;
}
.slogan
{
color:white;
font-size: 0.5em;
font-style: italic;
position: relative;
top:33px;
left: -130px;
}
</style>
<script type="text/javascript" src="tableExport/jquery.js"></script>
<script type="text/javascript" src="tableExport/tableExport.js"></script>
<script type="text/javascript" src="tableExport/jquery.base64.js"></script>
<script type="text/javascript" src="tableExport/html2canvas.js"></script>
<script type="text/javascript" src="tableExport/jspdf/jspdf.js"></script>
<script type="text/javascript" src="tableExport/jspdf/libs/base64.js"></script>
<script type="text/javascript" src="tableExport/jspdf/libs/sprintf.js"></script>
<script type="text/javascript">
</script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/1.0.272/jspdf.debug.js"></script>
<script type="text/javascript" src="jsPDFautotable/jspdf.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf-autotable/2.3.0/jspdf.plugin.autotable.js"></script>
<!--Sweet Alert-->
<link rel="stylesheet" type="text/css" href="sweetalert2/dist/sweetalert2.min.css">
<script src="sweetalert2/dist/sweetalert2.min.js"></script>
<body>
<div class="container">
<!--form horizontal-->
<div class="row">
<div class="container">
<img src="automalllogo.png" class="img-responsive col-lg-4 col-md-4 col-sm-12 col-xs-12 col-lg-offset-4 col-md-offset-4 logo" />
<p class="slogan">Pleasure of Extreme Machines</p>
<h2 class="heading gatepass text-center col-lg-4 col-md-4 col-sm-12 col-xs-12 col-lg-offset-4 col-md-offset-4"><strong>GATE PASS</strong></h2>
</div>
</div>
<!--form-->
<form method="POST" action="">
<div class="form-group col-lg-4 col-md-4 col-lg-offset-4 col-md-offset-4" >
<label class="control-label " >VEHICLE</label>
<div >
<select name="vehicle" class="form-control select_text">
<option value="Toyota" >Toyota</option>
<option value="Civic">Civic</option>
</select>
</div>
</div>
<div class="form-group col-lg-4 col-md-4 col-lg-offset-4 col-md-offset-4 ">
<label >REG/CH.NO</label>
<div >
<input type="text" name="registration" class="form-control textbox_color" placeholder="Enter Registration No" required="">
</div>
</div>
<div class="form-group col-lg-4 col-md-4 col-lg-offset-4 col-md-offset-4 ">
<label class="control-label " >MILEAGE</label>
<div >
<input type="text" name="mileage" class="form-control textbox_color" placeholder="Enter Mileage" required="">
</div>
</div>
<div class="form-group col-lg-4 col-md-4 col-lg-offset-4 col-md-offset-4 ">
<label class="control-label " >TO</label>
<div >
<input type="text" name="to" class="form-control textbox_color" placeholder="Enter To" required="">
</div>
</div>
<div class="form-group col-lg-4 col-md-4 col-lg-offset-4 col-md-offset-4 ">
<label class="control-label " >DRIVER</label>
<div >
<input type="text" name="driver" class="form-control textbox_color" placeholder="Enter driver" required="">
</div>
</div>
<div class="form-group col-lg-4 col-md-4 col-lg-offset-4 col-md-offset-4">
<label class="control-label " >C/O:</label>
<div >
<input type="text" name="co" class="form-control textbox_color" placeholder="Enter C/O" required="">
</div>
</div>
<div class="form-group col-lg-4 col-md-4 col-lg-offset-4 col-md-offset-4 " >
<label class="control-label " >APPROVED BY</label>
<div >
<select name="approvedby" class="form-control select_text">
<option value="Irfan">Irfan</option>
<option value="Rizwan">Rizwan</option>
</select>
</div>
</div>
<div class="form-group col-lg-8 col-md-8 col-lg-offset-4 col-md-offset-4">
<div >
<button type="submit" name="submit" class="btn custom_button" id="submit">Submit</button>
</div>
</div>
</form>
<!--form-->
</div>
<!--end-->
</body>
</html>
<?php
if(isset($_POST['submit']))
{
$vehicle=$_POST['vehicle'];
$registration=$_POST['registration'];
$mileage=$_POST['mileage'];
$to=$_POST['to'];
$driver=$_POST['driver'];
$co=$_POST['co'];
$approvedby=$_POST['approvedby'];
$date;
$time;
$query="INSERT INTO gatepass (vehicle,registration,mileage,to_location,driver,co,approvedby,currentdate,currenttime) VALUES ('$vehicle','$registration','$mileage','$to','$driver','$co','$approvedby','$date','$time')";
$queryrun=mysqli_query($connection,$query);
$connection=mysqli_connect($localhost,$username,$password,$db);
$query="SELECT id from gatepass WHERE currentdate='$date' AND currenttime='$time'";
$queryrun=mysqli_query($connection,$query);
$row=mysqli_fetch_array($queryrun);
$ID=$row['id'];
if($queryrun==TRUE)
{
require('fpdf/fpdf.php');
$pdf = new FPDF();
$pdf->AddPage();
$pdf->SetFont('Arial','B',16);
$pdf->Cell(40,10,'working or not?!');
$pdf->Output($date.$ID.'.pdf','I');
}
else{
mysqli_error($connection);
}
}
?>
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