给我不知道为什么它不断告诉我警告:mysql_num_rows()预计参数1是资源,布尔线189
Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in C:\Program Files (x86)\EasyPHP-DevServer-14.1VC9\data\localweb\projects\kesedar\Sara_hidup_Rumusan_Tahunan.php on line 189
这是我的代码:
$query_fasa = mysql_query("SELECT kodfasa as fasa FROM peneroka_sda WHERE kodrancangan ='".$row_rancangan['kodrancangan']."' AND kodfasa!='' UNION SELECT fasa FROM kodfasa WHERE kodrancangan ='".$row_rancangan['kodrancangan']."' ORDER BY fasa ASC");
$count_fasa=mysql_num_rows($query_fasa);
**停止**使用不推荐的'mysql_ *'API。使用'mysqli_ *'或'PDO'来准备语句代替 – Jens