进来看看这个while循环哪套错了，整个嵌套的循环又重复了一次...
重重复效果如下图所示，
<label> <select name="upname"><option value="">-请选择-</option> <option value="0">-顶级-</option> <?php $query = "select * from tbl_department where dpUpID ='0'"; $query_info = mysql_query($query); while($row = mysql_fetch_array($query_info)){ ?> <option value="<?php echo "$row[dpName]";?>"> <?php echo "$row[dpName]";?></option> <?php $query_1 = "select * from tbl_department where dpUpID = '$row[dpName]'"; $query_info_1 = mysql_query($query_1); while($row_1 = mysql_fetch_array($query_info_1)){ ?> <option value="<?php echo "$row_1[ID]";?>"><?php echo "$row_1[dpName]";?></option> <?php $query_2 = "select * from tbl_department where dpUpID = '$row_1[ID]'"; $query_info_2 = mysql_query($query_2); while($row_2 = mysql_fetch_array($query_info_2)){ ?> <option value="<?php echo "$row_2[ID]";?>"><?PHP echo "$row_2[dpName]";?></option> <?php }}}?> </select></label>
$query = "select * from tbl_department where dpUpID ='0'";
$query_info = mysql_query($query);
while($row = mysql_fetch_array($query_info)){
$query_1 = "select * from tbl_department where dpUpID = ' $row[dpName]'";
$query_info_1 = mysql_query($query_1);
while($row_1 = mysql_fetch_array($query_info_1)){
$query_2 = "select * from tbl_department where dpUpID = ' $row_1[ID]'";
$query_info_2 = mysql_query($query_2);
while($row_2 = mysql_fetch_array($query_info_2)){
}
}
}
筛选范围交叉了吧？
每个人都需要一台速度更快、更稳定的 PC。随着时间的推移，垃圾文件、旧注册表数据和不必要的后台进程会占用资源并降低性能。幸运的是，许多工具可以让 Windows 保持平稳运行。
Copyright 2014-2025 https://www.php.cn/ All Rights Reserved | php.cn | 湘ICP备2023035733号
588
收藏
