What are the common causes of errors like "FPDF error: Missing or incorrect image file" in PHP scripts, and how can they be resolved when including external resources like images or PDFs?

The common cause of the "FPDF error: Missing or incorrect image file" in PHP scripts is when the image file path is incorrect or the image file itself is missing. To resolve this issue, ensure that the correct file path is provided and that the image file exists in the specified location.

// Example code snippet to resolve the "FPDF error: Missing or incorrect image file"
$imagePath = 'path/to/image.jpg';

// Check if the image file exists
if (file_exists($imagePath)) {
    // Include the image in the PDF
    $pdf->Image($imagePath, $x, $y, $width, $height);
} else {
    // Handle the error if the image file is missing
    echo 'Error: Image file not found';
}