我有一个mysql查询,它将返回多个结果。然后,对于每个结果,我希望在$row[number]为空或不为空的情况下执行某项操作$sql = "SELECT * FROM $tbl_name WHERE username=\"$myusername\"";$numResults = mysql_num_rows($result)
form_no | fullname | january | february | march | april | may | june | july执行此操作的正确查询代码是什么$value_result = mysql_query("SELECT january FROM table_2014 WHERE form_no = '$formnumber'");i
我试图显示我的数据库中的所有结果,其中用户名等于登录的人,搜索行不为空。<?php $result = mysql_query("SELECT * FROM searchresults WHERE user='{$_SESSION['user_name']}' WHERE search='' ORDER BY date DESC") or die(mysql_er