PHP | imagealphablending() Function

<?php

// Create an image of given size
$image = imagecreatetruecolor(300, 500);

// Set alphablending to on
imagealphablending($image, true);

// Set the background color of image. 
$background_color = imagecolorallocate($image, 255, 255, 255); 
   
// Fill background with above selected color. 
imagefill($image, 0, 0, $background_color); 

// Draw a square of given size
imagefilledrectangle($image, 50, 50, 450, 250, imagecolorallocate($image, 0, 255, 0));

// Output image
header('Content-Type: image/png');

imagepng($image);
imagedestroy($image);
?>

<?php

// Create an image from png
$image = imagecreatefrompng( 
'https://media.geeksforgeeks.org/wp-content/uploads/geeksforgeeks-9.png'); 

// Set alphablending to image
imagealphablending($image, true);

// Create color of image
$green = imagecolorallocate($image, 0, 255, 0); 
   
// Create rectangle
imagerectangle($image, 5, 10, 660, 100, $green);

// Output image
header('Content-Type: image/png');

imagepng($image);
imagedestroy($image);
?>