How to Display a Remote Image with `file_get_contents` in PHP?

Displaying Image with file_get_contents

When working with PHP, you may encounter a situation where you need to display an image that is retrieved using the file_get_contents function. To do this effectively, it's important to understand how to modify the headers and utilize other PHP functions.

The getimagesize function is crucial in this process as it provides information about the image, such as its MIME type. This information is essential for setting the correct headers to display the image correctly.

To display the image, we typically use the readfile function. This function reads the file directly into the output buffer, making it more efficient than using file_get_contents to read the file into memory, especially for larger image files.

Here's an example demonstrating how to accomplish this:

<code class="php">$remoteImage = "http://www.example.com/gifs/logo.gif";
$imginfo = getimagesize($remoteImage);
header("Content-type: {$imginfo['mime']}");
readfile($remoteImage);</code>

Setting the correct MIME type in the header ensures that the image is displayed properly in the browser. Remember, this method is more efficient than using file_get_contents, which would unnecessarily read the image into memory.

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