/**
* Desc: 生成指定长度的随机汉字
* @param integer $length 长度
* @return string
*/
public function makeChineseCharacters($length)
{
$chinese = '';
for ($i=0;$i<$length;$i++)
{
$chr = chr(mt_rand(0xB0,0xD0)).chr(mt_rand(0xA1, 0xF0));
$chinese .= iconv('GB2312', 'UTF-8', $chr);
}
return $chinese;
}
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