How can you troubleshoot and debug issues related to displaying images in PHP from external sources?

To troubleshoot and debug issues related to displaying images in PHP from external sources, you can check for common problems such as incorrect image URLs, server permission issues, or network connectivity problems. You can also use PHP functions like file_get_contents() to retrieve the image data and then display it using appropriate image functions. 

<?php
$image_url = 'https://example.com/image.jpg';

// Check if the image URL is valid
if(filter_var($image_url, FILTER_VALIDATE_URL)){
    // Get the image data
    $image_data = file_get_contents($image_url);

    // Display the image
    header('Content-Type: image/jpeg');
    echo $image_data;
} else {
    echo 'Invalid image URL';
}
?>

Keywords

PHP image display external sources debugging troubleshooting

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