Question

下载文件时出错，将二进制数据输入浏览器而不是实际文件，特别是pdf文件。我在mysql文件中使用BLOB数据类型。

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这是我的PHP代码下载

<?php


$company =$_GET['company'];

// Make sure an ID was passed
if(isset($_GET['id'])) {
// Get the ID
$id = intval($_GET['id']);
// Make sure the ID is in fact a valid ID
if($id <= 0) {
die('The ID is invalid!');
}
else {
// Connect to the database
$dbLink = new mysqli('localhost', 'sqldata', 'sqldata', 'balhaf');
if(mysqli_connect_errno()) {
    die("MySQL connection failed: ". mysqli_connect_error());
}

// Fetch the file information
$query = "
    SELECT mime, name, size, data
    FROM $company
    WHERE id = $id";
$result = $dbLink->query($query);

if($result) {
    // Make sure the result is valid
    if($result->num_rows == 1) {
    // Get the row
        $row = mysqli_fetch_assoc($result);

        // Print headers
        header("Content-Type: ". $row['mime']);
        header("Content-Length: ". $row['size']);
        header("Content-Disposition: attachment; filename=". $row['name']);

        // Print data
        echo $row['data'];
    }
    else {
        echo 'Error! No image exists with that ID.';
    }

    // Free the mysqli resources
    @mysqli_free_result($result);
    }
    else {
    echo "Error! Query failed: <pre>{$dbLink->error}</pre>";
    }
    @mysqli_close($dbLink);
    }
    }
    else {
    echo 'Error! No ID was passed.';
    }
    ?>

下载文件时获取二进制数据而不是实际文件时出错

0 个答案: