How can PHP be used to merge multiple images together?

To merge multiple images together using PHP, you can use the GD library functions to create a new image canvas and then copy each individual image onto the canvas at specific coordinates. This allows you to combine multiple images into one single image. 

// Create a new image canvas
$canvas = imagecreatetruecolor($width, $height);

// Load each image and copy onto the canvas at specific coordinates
$image1 = imagecreatefrompng('image1.png');
imagecopy($canvas, $image1, $x1, $y1, 0, 0, imagesx($image1), imagesy($image1));

$image2 = imagecreatefrompng('image2.png');
imagecopy($canvas, $image2, $x2, $y2, 0, 0, imagesx($image2), imagesy($image2));

// Output the merged image
imagepng($canvas, 'merged_image.png');

// Free up memory
imagedestroy($canvas);
imagedestroy($image1);
imagedestroy($image2);

Keywords

PHP image processing image manipulation GD library merging images

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