What potential issues can arise when resizing images using PHP?
One potential issue when resizing images using PHP is that the resized image may lose quality or appear distorted if not done properly. To solve this, it is important to use a library like GD or Imagick that supports image resizing algorithms to maintain image quality.
// Example using GD library to resize an image while maintaining quality
$source_image = imagecreatefromjpeg('source.jpg');
$width = imagesx($source_image);
$height = imagesy($source_image);
$new_width = 200;
$new_height = ($height / $width) * $new_width;
$destination_image = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($destination_image, $source_image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
imagejpeg($destination_image, 'resized.jpg', 100);
imagedestroy($source_image);
imagedestroy($destination_image);