1. Draw a cylinder
<code><span><span><?php</span><span>//1.画布</span><span>//默认是黑色</span><span>$img</span> = imagecreatetruecolor(<span>400</span>,<span>300</span>); <span>$white</span> = imagecolorallocate(<span>$img</span>,<span>255</span>,<span>255</span>,<span>255</span>); imagefill(<span>$img</span>,<span>0</span>,<span>0</span>,<span>$white</span>); <span>//2.画扇形</span><span>//创建3个颜色</span><span>$red</span> = imagecolorallocate(<span>$img</span>,<span>255</span>,<span>0</span>,<span>0</span>); <span>$blue</span> = imagecolorallocate(<span>$img</span>,<span>0</span>,<span>0</span>,<span>128</span>); <span>$gray</span> = imagecolorallocate(<span>$img</span>,<span>192</span>,<span>192</span>,<span>192</span>); <span>//暗色</span><span>$dardred</span> = imagecolorallocate(<span>$img</span>,<span>144</span>,<span>0</span>,<span>0</span>); <span>$dardblue</span> = imagecolorallocate(<span>$img</span>,<span>0</span>,<span>0</span>,<span>80</span>); <span>$dardgray</span> = imagecolorallocate(<span>$img</span>,<span>144</span>,<span>144</span>,<span>144</span>); <span>for</span>(<span>$i</span>=<span>60</span>;<span>$i</span>>=<span>40</span>;<span>$i</span>--){ imagefilledarc(<span>$img</span>,<span>100</span>,<span>$i</span>,<span>100</span>,<span>60</span>,<span>0</span>,<span>35</span>,<span>$dardblue</span>,IMG_ARC_PIE); imagefilledarc(<span>$img</span>,<span>100</span>,<span>$i</span>,<span>100</span>,<span>60</span>,<span>35</span>,<span>75</span>,<span>$dardgray</span>,IMG_ARC_PIE); imagefilledarc(<span>$img</span>,<span>100</span>,<span>$i</span>,<span>100</span>,<span>60</span>,<span>75</span>,<span>360</span>,<span>$dardred</span>,IMG_ARC_PIE); } <span>//在上面加个盖,亮色</span> imagefilledarc(<span>$img</span>,<span>100</span>,<span>40</span>,<span>100</span>,<span>60</span>,<span>0</span>,<span>35</span>,<span>$blue</span>,IMG_ARC_PIE); imagefilledarc(<span>$img</span>,<span>100</span>,<span>40</span>,<span>100</span>,<span>60</span>,<span>35</span>,<span>75</span>,<span>$gray</span>,IMG_ARC_PIE); imagefilledarc(<span>$img</span>,<span>100</span>,<span>40</span>,<span>100</span>,<span>60</span>,<span>75</span>,<span>360</span>,<span>$red</span>,IMG_ARC_PIE); <span>//输出图片</span> header(<span>'content-type:image/png'</span>); imagepng(<span>$img</span>); imagedestroy(<span>$img</span>); </span></span></code>
The above introduces the 86 php drawing system 2, including the relevant content. I hope it will be helpful to friends who are interested in PHP tutorials.