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使用 GD 函式產生透明的 GIF 圖像

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使用 GD 函式產生透明的 GIF 圖像

首先要先確定您的 PHP 有支援 GD 函式庫。

先用 imageCreate() 來建立一個GD圖像物件:

產生透明的 GIF 圖像
  1. $Width=200;
  2. $Height=200;
  3. $GDPic = imageCreate($Width, $Height);
  4.  
  5. # 指定一個色來當作背景色(Red,Green,Blue):
  6. $BGColor = imageColorAllocate($GDPic, 255, 255, 255);
  7.  
  8. # 用背景色塗滿整個圖像:
  9. imageFilledRectangle($GDPic,0,0,$Width1,$Height,$BGColor);
  10.  
  11. # 字型檔所在位置:
  12. $UseFont = '../fonts/mingliu.ttc';
  13.  
  14. # 開始在圖上畫出想畫的東西比如寫一行字:
  15. $TextColor = imageColorAllocate($im, 50, 50, 255);
  16. imageTTFText($GDPic,5,0,50,90,$TextColor,$UseFont,"My Gif");
  17.  
  18. # 把背景色設定為透明色:
  19. imageColorTransparent($GDPic,$BGColor);
  20.  
  21. # 使用交錯模式:
  22. imageInterlace($GDPic);
  23.  
  24. #輸出成為 GIF:
  25. header("Content-type: image/gif");
  26. imageGif($GDPic);
  27.  
  28. 最後記得釋放圖像佔用的記憶體:
  29. imageDestroy($GDPic);

  • Keywords : GDPic, Height, BGColor, imageCreate, Width, UseFont, TextColor, 輸出成為, 記憶體, 產生透明, 物件, 指定一, 字型檔所, 如寫一行字, 函式庫, 先用, 來建立一, 佔用, 位置, mingliu
0 0
2007-11-30T06:49:00+0000


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