How can PHP beginners learn more about image manipulation and optimization for web development projects?

Beginners can learn more about image manipulation and optimization in PHP by utilizing libraries like GD or Imagick. These libraries provide functions for resizing, cropping, compressing, and enhancing images for web development projects. By practicing with these libraries and experimenting with different techniques, beginners can improve their skills in handling images effectively. 

// Example code using GD library to resize and optimize an image
$sourceImage = 'image.jpg';
$destinationImage = 'resized_image.jpg';

list($width, $height) = getimagesize($sourceImage);
$newWidth = 200; // New width for the resized image
$newHeight = ($height / $width) * $newWidth;

$source = imagecreatefromjpeg($sourceImage);
$destination = imagecreatetruecolor($newWidth, $newHeight);

imagecopyresampled($destination, $source, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);

imagejpeg($destination, $destinationImage, 80); // 80 is the image quality (0-100)
imagedestroy($source);
imagedestroy($destination);

Keywords

GD library image processing image optimization PHP functions web development.

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