How to Properly Insert Images into a MySQL Database Using PHP?

How to Insert Images into a MySQL Database Using PHP

Problem:

You're attempting to store images in a MySQL database but the program isn't inserting the image data.

Excerpt of Provided Code:

    $file = $_FILES['image']['tmp_name'];
    ...
    if ($image_query = mysql_query ("insert into product_images values (1,'$image_name',$image )"))
    {
        ...
    }

Error Message:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax.

Solution:

1. Ensure the Image Column is of BLOB Type:
Verify that the column you're using to store the images is of the BLOB data type.

2. Sanitize the Input Data:
Use MySQLi functions to handle SQL queries and escape special characters in the input data to prevent SQL injection.

Corrected Code (Assuming ID is Always '1'):

$image = addslashes(file_get_contents($_FILES['image']['tmp_name']));
$image_name = addslashes($_FILES['image']['name']);

$query = "INSERT INTO product_images (id, image, image_name) VALUES ('1', '{$image}', '{$image_name}')";

if (mysqli_query($conn, $query)) {
    ...
}

3. Update HTML Form:
The HTML form should be updated to use the correct enctype attribute for uploading files:

<form action="insert_product.php" method="POST" enctype="multipart/form-data">
    <input type="file" name="image" />
    <input type="submit" />
</form>

4. Store Files on Disk (Optional):
Consider storing image files on disk instead of using a MySQL database for large amounts of data. This can improve performance and reduce database load.

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