动态图像处理 — php（34），动态图像处理php34_PHP教程

<span><?<span>php
</span><span>//</span><span> 创建背景图像</span>
$height = <span>200</span><span>;
$width </span>= <span>200</span><span>;
$im </span>= ImageCreateTrueColor($width, $height); <span>//</span><span>建立空白背景</span>
$white = ImageColorAllocate ($im, <span>255</span>, <span>255</span>, <span>255</span>);<span>//</span><span>设置绘图颜色</span>
$blue = ImageColorAllocate ($im, <span>0</span>, <span>0</span>, <span>64</span><span>);
imageFill($im, </span><span>0</span>, <span>0</span>, $blue);<span>//</span><span>绘制背景</span>
imageLine($im, <span>0</span>, <span>0</span>, $width, $height, $white); <span>//</span><span>画线</span>
imageString($im, <span>4</span>, <span>50</span>, <span>150</span>, <span>'</span><span>Sales</span><span>'</span>, $white); <span>//</span><span>添加字串</span>
header(<span>'</span><span>Content-type: image/png</span><span>'</span><span>);
imagePng($im); </span><span>//</span><span>以PNG 格式将图像输出</span>
<span>imageDestroy($im);
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