PHP中 验证码无法在调用页面正常显示
第一：页面文件说明部分：
1、调用页面的路径html\problems.php
2、验证码页面的路径 html\inc\code.php
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第二：code.php 页面代码 如下图
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第三：problems.php页面代码 如下图
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第四：问题部分
??? 可以正常得到验证码的值，但验证码的图片显示为【红叉】
??? 郁闷很久很久，未找到解决方案，
??? 是否有大侠也遇见这样的问题，
??? 需要你们的建议与解答 谢谢了
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