故障描述:在某些Linux的php环境下会出现中文验证码呈现繁体文、乱码、口口等不正常现象 
 
 
适合版本:Discuz!x2 Discuz!x2.5 Discuz!x3 Discuz!x3.1 Discuz!x3.2 
解决方法: 
1.打开/source/class/class_seccode.php 
2.搜索:- $this->shadow && imagettftext($this->im, $font[$i]['size'], $font[$i]['angle'], $x + 1, $y + 1, $text_shadowcolor, $font[$i]['font'], $seccode[$i]);
 
 -                         imagettftext($this->im, $font[$i]['size'], $font[$i]['angle'], $x, $y, $text_color, $font[$i]['font'], $seccode[$i]);
 
  复制代码 
替换为: 
- /*                        $this->shadow && imagettftext($this->im, $font[$i]['size'], $font[$i]['angle'], $x + 1, $y + 1, $text_shadowcolor, $font[$i]['font'], $seccode[$i]);
 
 -                         imagettftext($this->im, $font[$i]['size'], $font[$i]['angle'], $x, $y, $text_color, $font[$i]['font'], $seccode[$i]);*/
 
 -                         //修复中文验证码
 
 -                         $seccode[$i] = mb_convert_encoding($seccode[$i], "html-entities", "utf-8");
 
 -                          $this->shadow && imagettftext($this->im, $font[$i]['size'], $font[$i]['angle'], $x + 1, $y + 1, $text_shadowcolor, $font[$i]['font'], mb_convert_encoding($seccode[$i], "html-entities", "utf-8"));
 
 -             imagettftext($this->im, $font[$i]['size'], $font[$i]['angle'], $x, $y, $text_color, $font[$i]['font'], mb_convert_encoding($seccode[$i], "html-entities", "utf-8"));
 
  复制代码 
3.覆盖同名文件,更新缓存,问题解决 
 
 
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