How to convert images to base64 encoding in php

In modern web development, it is often necessary to convert images to Base64 encoding to speed up page loading and reduce the number of HTTP requests. In PHP, we can easily convert image files to Base64 encoding to display images directly in web pages without reading them from the server.

The following are some simple PHP code examples that can help you convert images to Base64 encoding.

First, we need to load the image file and read it into memory. Using PHP's built-in function file_get_contents(), you can easily read the file content:

$image_file = "/path/to/your/image.png";
$image_data = file_get_contents($image_file);

Using file_get_contents(), we can get the full path of the image file as The parameters are passed to the function and its contents are stored in the variable $image_data.

Next, we need to encode $image_data using Base64 encoding. Using PHP's built-in function base64_encode(), we can easily Base64 encode a string:

$image_base64 = base64_encode($image_data);

Now we have converted the image file to a Base64 encoded string. This can be inserted into an image tag using the data URI scheme in HTML:

<img  src="/static/imghwm/default1.png" data-src="data:image/png;base64,<?php echo $image_base64 ?>" class="lazy" alt="How to convert images to base64 encoding in php" >

In this example, data:image/png describes the text-based image we will display ( Here is PNG), while $image_base64 contains Base64 encoded image data. Finally, we insert <?php echo $image_base64 ?> into the HTML tag so that the image can be displayed on the web page.

Summary

In this article, we showed how to convert image files to Base64 encoding using PHP. Use the file_get_contents() function to read the image into memory, then use base64_encode() to encode it. Finally, we insert the encoded string into the HTML markup to display the image directly on the web page. This technique can improve page performance and reduce HTTP requests while also providing a convenient way to process images.

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