18c03-1.php

来自「介绍PHP5的给类型函数应用」· PHP 代码 · 共 21 行

<?php
// Create a blank image to test with.
$gfx = imagecreatetruecolor(200, 200);

// Declare just two colors, a bright green, and blue
$blue = imagecolorallocate($gfx, 0, 0, 255);
$green = imagecolorallocate($gfx, 0, 255, 0);

// Make the entire background green
imagefilledrectangle($gfx, 0, 0, 199, 199, $green);

// Draw a blue circle on the image:
imagefilledellipse($gfx, 100, 100, 30, 30, $blue);

// Set the green color as transparent:
imagecolortransparent($gfx, $green);

// Output our sample as a PNG
header('Content-type: image/png');
imagepng($gfx);
?>