How can PHP developers efficiently troubleshoot and debug issues related to image display in a web application?

To efficiently troubleshoot and debug issues related to image display in a web application, PHP developers can start by checking the file paths, file permissions, and image formats. They can also use PHP functions like `file_exists()` and `is_readable()` to verify the existence and readability of the image files. Additionally, developers can use tools like Xdebug for more in-depth debugging. 

// Check if the image file exists and is readable
$image_path = 'path/to/image.jpg';

if (file_exists($image_path) && is_readable($image_path)) {
    // Display the image
    echo '<img src="' . $image_path . '" alt="Image">';
} else {
    echo 'Image not found or not readable.';
}

Keywords

image display troubleshooting debugging PHP functions error types

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