我从同一个表中的2个DB列中提取数据,以
@L_502_0@格式填充下拉菜单.虽然我确实获得了两个数据,但我似乎无法用空格分隔它们.下面的代码是我这样做的一般尝试,但我尝试更改和省略空格的引号以及用单引号和双引号括起firstname和lastname.但似乎没有任何效果.到目前为止我离开了：Firstnamelastname.
<?PHP //db connection MysqL_connect('localhost','root',""); MysqL_select_db('recy'); $sql = "SELECT CONCAT(firstname,' ',lastname) FROM technicians"; $result = MysqL_query($sql); echo "<select name='firstname','lastname'>"; while ($row = MysqL_fetch_array($result)) { echo "<option value'" . $row['CONCAT(firstname,lastname)'] . "'>" . ucwords($row['CONCAT(firstname,lastname)']) . "</option>"; } echo "</select>"; ?>
任何建议或建议表示赞赏.
CONCAT_WS,是包含分隔符的MysqL函数所以..
原文链接：https://www.f2er.com/php/137304.html$sql = "SELECT CONCAT_WS(' ',firstname,lastname) as name FROM technicians";
然后使用$row [‘name’]
CONCAT_WS() stands for Concatenate With Separator and is a special form of CONCAT(). The first argument is the separator for the rest of the arguments. The separator is added between the strings to be concatenated. The separator can be a string,as can the rest of the arguments. If the separator is NULL,the result is NULL.
