求解，怎样比较2个数组的大小解决方法
求解，怎样比较2个数组的大小
一个数组是数据库读出来的，一个数组是用循环写的
for ($ii='A'; $ii for ($i=1; $i
if($q!=$rack_id . $ii . $i)
{
echo " ";
}
}
}
数据读出来的如
A02B2
A02B3
A02B4
A02B5
A02B6
循环生成的如：
A02B2
A02B3
A02B4
A02B5
A02B6
B02B2
B02B3
B02B4
B02B5
B02B6
怎样去掉重复的？
------解决方案--------------------
比较数组哪方面的大小？
------解决方案--------------------
array_diff
------解决方案--------------------
array_diff 就是了，取交集。
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