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Two examples of php drawing circles. Usage of php drawing functions imagearc() and ImagePng()

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Release： 2016-07-25 08:56:14
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  2. header ("Content-type: image/png");
  4. $im = ImageCreate (150, 150);
  5. $grey = ImageColorAllocate ($im, 230, 230, 230);
  6. $black = ImageColorAllocate ($im, 0, 0, 0);
  8. ImageString($im, 3, 5, 5, "Figure 18.5: Circle", $black);
  9. ImageArc($im, 75, 75, 50, 50, 0, 360, $black);
  10. ImagePng ($im);
  11. ImageDestroy ($im);
  12. ?>
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例2，绘制圆形 Drawing a Circle with imagearc()

  2. header("Content-type: image/png");
  3. $image = imagecreate( 200, 200 );
  4. $red = imagecolorallocate($image, 255,0,0);
  5. $blue = imagecolorallocate($image, 0,0,255 );
  6. imagearc( $image, 99, 99, 180, 180, 0, 360, $blue );
  7. imagefill( $image, 99, 99, $blue );
  8. imagepng($image);
  9. ?>
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Related labels：
php绘制圆形的二个例子 php绘图函数imagearc()、ImagePng()的用法
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