我期望的目标是允许使用PDO通过PHP将图像上传到数据库。
数据库不会有很多值,最多十到十五,所以我觉得让图像上传到那里感觉更舒服。
这是我的PHP代码:
<?php
require '../../app/start.php';
if (!empty($_POST)) {
$name = $_POST['name'];
$position = $_POST['position'];
$detail = $_POST['detail'];
$imageData = addslashes(file_get_contents($_FILES['userImage']['tmp_name']));
$imageProperties = getimageSize($_FILES['userImage']['tmp_name']);
$insertPage = $db->prepare("
INSERT INTO about (name, position, detail, imageType, imageData)
VALUES (:name, :position, :detail, {$imageProperties['mime']}, {$imageData})
");
$insertPage->execute([
'name' => $name,
'position' => $position,
'detail' => $detail,
'imageType' => $imageProperties['mime'],
'imageData' => $imageData
]);
}
header('Location: ' . BASE_URL . '/admin/about/list.php');
require VIEW_ROOT . '/admin/about/add.php';
?>
这是我的HTML:
<form action="<?php echo BASE_URL; ?>/admin/about/add.php" method="POST" enctype="multipart/form-data" autocomplete="off">
<label for="name">
Name
<input type="text" name="name" id="name" value="">
</label>
<label for="position">
Position
<input type="text" name="position" id="position" value="">
</label>
<label for="detail">
Detail
<textarea name="detail" id="detail" cols="30" rows="10"></textarea>
</label>
<label for="imageId">
Upload Image File:
<input name="userImage" id="userImage" type="file" class="inputFile" />
</label>
<input type="submit" value="Add Page">
</form>
表:
id int(11) NO PRI auto_increment
imageId tinyint(3) NO
imageType varchar(25) YES
imageData mediumblob NO
name varchar(35) NO
position varchar(35) NO
detail varchar(120) NO
我不确定上面是否定义了表格。老实说,我不熟悉你指的是什么。
这是我在尝试上传图片时遇到的两个错误:
Warning: PDOStatement::execute(): SQLSTATE[HY093]: Invalid parameter number: mixed named and positional parameters in /admin/about/add.php on line 24
Warning: Cannot modify header information - headers already sent by (output started at /admin/about/add.php:24) in /admin/about/add.php on line 26
使用此功能,我收到一些警告,图片无法上传。
如何修复代码以允许将图像上传到数据库?
编辑:我道歉,我之前复制并粘贴了错误的HTML代码。
答案 0 :(得分:2)
此
$insertPage = $db->prepare("
INSERT INTO about (name, position, detail, imageType, imageData)
VALUES (:name, :position, :detail, {$imageProperties['mime']}, {$imageData})
");
$insertPage->execute([
'name' => $name,
'position' => $position,
'detail' => $detail,
'imageType' => $imageProperties['mime'],
'imageData' => $imageData
]);
应该是
$insertPage = $db->prepare("
INSERT INTO about (name, position, detail, imageType, imageData)
VALUES (:name, :position, :detail, :imageType, :imageData)
");
$insertPage->execute([
'name' => $name,
'position' => $position,
'detail' => $detail,
'imageType' => $imageProperties['mime'],
'imageData' => $imageData
]);
注意INSERT查询的VALUES部分的更改。这将解决您获得的错误。我没有深入研究你试图通过这个查询实现的目标,并且从我的角度来看,最好将图像存储在文件系统中,而将URL存储在数据库中