我正在尝试使用MySql和PHP将pdf文件上传到数据库，但是只有jpeg / png之类的图像存储在数据库中。我无法将pdf文件上传到数据库并检索它。这是我的HTML代码，带有表单-
<form id="form" name="form" onsubmit="return validate()" action="http://localhost:81/wordpress/wp-content/themes/themify-ultra/submit.php" enctype="multipart/form-data" method="POST">
<div class="form-row">
<div class="name">Name</div>
<div class="value">
<div class="input-group">
<input class="input--style-5" type="text" name="name" required>
</div>
</div>
</div>
<div class="form-row">
<div class="name">Email</div>
<div class="value">
<div class="input-group">
<input class="input--style-5" type="email" name="email" required>
</div>
</div>
</div>
<div class="form-row">
<div class="name">Phone</div>
<div class="value">
<div class="input-group">
<input class="input--style-5" type="number" name="contact" required>
</div>
</div>
</div>
<div class="form-row">
<div class="name">Upload Your Resume</div>
<div class="value">
<div class="input-group">
<input class="input--style-5" type="file" name="myfile">
</div>
</div>
</div>
<div>
<button class="btn" name="btn" type="submit">Submit</button>
</div>
</form>
验证功能低于-
<script>
function validate()
{
var name = document.forms["form"]["name"];
var email = document.forms["form"]["email"];
var phone = document.forms["form"]["contact"];
var resume = document.forms["form"]["myfile"];
if (name.value == "")
{
window.alert("Please enter your name.");
name.focus();
return false;
}
if (email.value == "")
{
window.alert("Please enter a valid e-mail address.");
email.focus();
return false;
}
if (email.value.indexOf("@", 0) < 0)
{
window.alert("Please enter a valid e-mail address.");
email.focus();
return false;
}
if (email.value.indexOf(".", 0) < 0)
{
window.alert("Please enter a valid e-mail address.");
email.focus();
return false;
}
if (phone.value == "")
{
window.alert("Please enter your telephone number.");
phone.focus();
return false;
}
if(resume.value=="")
{
window.alert("Please upload your resume.");
resume.focus();
return false;
}
return true;
}</script>
将数据上传到数据库的PHP代码是这个-
<?php
$conn = new PDO('mysql:host=localhost;port=3306;dbname=test',
'root',
'',
array(PDO::ATTR_PERSISTENT => true));
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
echo "Connected successfully";
if(isset($_POST['btn']))
{
$name2 = $_POST['name'];
$email2 = $_POST['email'];
$contact2 = $_POST['contact'];
$allowedExts = array("pdf");
$name=$_FILES['myfile']['name'];
$type=$_FILES['myfile']['type'];
$data=file_get_contents($_FILES['myfile']['tmp_name']);
$data = addslashes($data);
$query = "INSERT INTO wp_form (name,email,phone_number,file_name,type,data,description) VALUES (?,?,?,?,?,?,NOW())";
$result = $conn->prepare($query);
$result->execute(array($name2,$email2,$contact2,$name,$type,$data));
header("Location: https://www.example.com/thankyou");
}
?>
从数据库中获取数据的PHP是这个
<!DOCTYPE html>
<html>
<head>
<title></title>
<!DOCTYPE html>
<html>
<head>
<title>Catalog</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<!-- jQuery library -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!-- Latest compiled JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
</body>
</html>
<?php
$conn = new PDO('mysql:host=localhost;port=3306;dbname=test',
'root',
'',
array(PDO::ATTR_PERSISTENT => true));
if (!$conn) {
die("Connection failed: " . mysqli_connect_error());
}
$query = "SELECT * from wp_form";
$result = $conn->prepare($query);
$result->execute();
echo "<table border='1' cellpadding='0' cellspacing='0'>
<tr height='50'>
<td align='center' width='150'><b>S.No</b></td>
<td align='center' width='150'><b>Name</b></td>
<td align='center' width='300'><b>Email</b></td>
<td align='center' width='150'><b>Phone Number</b></td>
<td align='center' width='150'><b>Resume</b></td>
<td align='center' width='150'><b>Description</b></td>
</tr></table>";
while ($row=$result->fetch()) {
echo "<table border='1' cellpadding='0' cellspacing='0' ><tr height='50'>
<td align='center' width='150'>".$row['id']."</td>
<td align='center' width='150'>".$row['name']."</td>
<td align='center' width='300'>".$row['email']."</td>
<td align='center' width='150'>".$row['phone_number']."</td>
<td align='center' width='150'><a target='_blank' href='http://localhost:81/wordpress/wp-content/themes/themify-ultra/view.php?id=".$row['id']."'>".$row['file_name']." </a></td>
<td align='center' width='150'>".$row['description']."</td>
</tr>
</table>";
}
?>
图像正存储在数据库中，但是当我尝试上传pdf文件时，它不起作用。任何人都可以告诉我哪里出问题了。
答案 0 :(得分：0)
问题
$data=file_get_contents($_FILES['myfile']['tmp_name']);
$hexa = bin2hex($data);
。然后，您可以使用PHP中的文件流来检索存储的十六进制后，再次创建文件。希望这会有所帮助。