What are common issues with image resizing in PHP and how can they affect image quality?

One common issue with image resizing in PHP is loss of image quality due to interpolation. To improve image quality, you can use the `imagecopyresampled` function instead of `imagecopyresized` for resizing images. 

// Load the original image
$original_image = imagecreatefromjpeg('original.jpg');

// Create a new image with the desired dimensions
$new_width = 200;
$new_height = 150;
$resized_image = imagecreatetruecolor($new_width, $new_height);

// Resize the image using imagecopyresampled for better quality
imagecopyresampled($resized_image, $original_image, 0, 0, 0, 0, $new_width, $new_height, imagesx($original_image), imagesy($original_image));

// Output the resized image
imagejpeg($resized_image, 'resized.jpg');

// Free up memory
imagedestroy($original_image);
imagedestroy($resized_image);

Keywords

image resizing PHP image quality compression distortion

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