php-gdHow to set image background color
<?php
$im = imagecreatetruecolor(400, 300);
$c_green = imageColorAllocate($im, 46,204,64);
imagefill($im, 0, 0, $c_green);
$c_black = imageColorAllocate($im, 0,0,0);
imagefilledellipse($im, 200, 150, 100, 100, $c_black);
imagePng($im, '/tmp/image.png');ctrl + cimagecreatetruecolorcreates true color GD image object with specified width & height | imageColorAllocatecreates color object to later use in image |
imagefill(fills an entire image with a given color (green in our case) | imagePngsaves image in PNG format to the given path |
Usage example
<?php
$im = imagecreatetruecolor(400, 300);
$c_green = imageColorAllocate($im, 46,204,64);
imagefill($im, 0, 0, $c_green);
$c_black = imageColorAllocate($im, 0,0,0);
imagefilledellipse($im, 200, 150, 100, 100, $c_black);
imagePng($im, '/tmp/image.png');