What potential issues could arise when trying to generate dynamic images in PHP?

One potential issue that could arise when trying to generate dynamic images in PHP is that the image may not be displayed correctly due to improper headers being sent. To solve this issue, you can use the `header()` function in PHP to set the correct content type for the image before outputting it. 

<?php
// Set the content type header to indicate that an image will be outputted
header('Content-Type: image/png');

// Generate the dynamic image (e.g., using GD library)
$image = imagecreate(200, 200);
$bgColor = imagecolorallocate($image, 255, 255, 255);
$textColor = imagecolorallocate($image, 0, 0, 0);
imagestring($image, 4, 50, 50, 'Dynamic Image', $textColor);

// Output the image
imagepng($image);
imagedestroy($image);
?>

Keywords

GD library memory allocation image processing file permissions server configuration

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