PHP随机颜色生成器

1. function randomColor() {
2. $str = '#';
3. for($i = 0 ; $i $randNum = rand(0 , 15);
4. switch ($randNum) {
5. case 10: $randNum = 'A'; break;
6. case 11: $randNum = 'B'; break;
7. case 12: $randNum = 'C'; break;
8. case 13: $randNum = 'D'; break;
9. case 14: $randNum = 'E'; break;
10. case 15: $randNum = 'F'; break;
11. }
12. $str .= $randNum;
13. }
14. return $str;
15. }
16. $color = randomColor();

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PHP