Troubleshooting Image Display from MySQL BLOBs: How to Display Image and Text

Displaying Images from MySQL BLOBs: Resolving Incompatible Content Output

In the context of displaying an image stored as a BLOB variable in a MySQL database, a common issue arises when attempting to echo additional text outside of the image data. This results in the failure of the image to display correctly.

The reason for this behavior is that the browser interprets any output after the BLOB content as part of the image, causing an error. To resolve this issue, we can utilize base64 encoding to convert the BLOB data into a format that can be embedded into an tag.

Here's an updated version of the PHP code:

<code class="php"><?php
include("inc/library.php");
connectToDatabase();

$sql = "SELECT * FROM theBlogs WHERE ID = 1;";
$result = mysql_query($sql) or die(mysql_error());  
$row = mysql_fetch_array($result);

// Convert image data to base64
$base64Image = base64_encode($row['imageContent']);

// Output the base64 encoded image in an <img> tag
echo '<img src="data:image/jpeg;base64,' . $base64Image . '" />';

// Echo additional text after the image
echo 'Hello world.';

$db->close();
?></code>

This technique allows you to display the image along with additional text without encountering any interference. However, it's important to note that using data URIs can affect caching performance and may result in slower page loading, especially on mobile devices.

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