PHP function: simple image watermarking function code

Work needs, write a simple PHP image watermark function. & Lt ;? Php & nbsp;/* & nbsp; Image watermarking function & nbsp; $ imag_url indicates the path of the image to be watermarked & nbsp; $ str indicates the string to be added to the image & nbsp; $ route: the storage path after adding a watermark & nbsp; */& nbsp; function & nbsp required for work. a simple function is to add a watermark to a PHP image.

2. /*
3. Image watermarking function
4. $ Imag_url is the path of the image to be watermarked
5. $ Str: string to be added to the image
6. $ Path for storing the route watermark
7. */
8. Function watermark ($ imag_url, $ str, $ route ){
9. $ Type_array = explode (., $ imag_url );
10. $ Imag_type = $ type_array [count ($ type_array)-1];
11. Switch ($ imag_type ){
12. Case gif: $ img = imagecreatefromgif ($ imag_url); break;
13. Case jpeg: $ img = imagecreatefromjpeg ($ imag_url); break;
14. Case jpg: $ img = imagecreatefromjpeg ($ imag_url); break;
15. Case png: $ img = imagecreatefrompng ($ imag_url); break;
16. Default: $ img = imagecreatefromgif ($ imag_url); break;
17. }
18. // Font color
19. $ Gray = imagecolorallocate ($ img, 235,235,235 );
20. $ Pink = imagecolorallocate ($ img, 255,128,255 );
21. /* $ Fontfile font path, depending on the operating system, can be simhei. ttf (), SIMKAI. TTF (entity body), SIMFANG. TTF (Imitation Song), SIMSUN. chinese fonts supported by GD, such as TTC (& */
22. $ Fontfile = "C: WINDOWSFontsSIMHEI. TTF ";
23. $ Str = iconv (GB2312, UTF-8, $ str);/* convert the character set of gb2312 to the character set of the UTF-8 */
24. Imagettftext ($ img, 30, 0, 0,200, $ pink, $ fontfile, $ str );
25. /* Add a Chinese watermark */
26. Imagepng ($ img, $ route );
27. Imagedestroy ($ img );
28. }
29. ?>

The above function is expected to benefit everyone.