Php 请对我的计数功能稍加帮助。尝试了这个话题的答案,但没有成功
屏幕上没有打印任何内容。空白屏幕。表有记录。在Php 请对我的计数功能稍加帮助。尝试了这个话题的答案,但没有成功,php,Php,屏幕上没有打印任何内容。空白屏幕。表有记录。在count和(id)之间有一个空格,这将导致查询失败 如果显示它们,则确切的错误为 $sql= ("SELECT COUNT (id) AS total FROM grade "); $result=mysqli_query($dbConnection, $sql); echo $result['total']; 查询完$sql=(“选择COUNT(id)AS total FROM books”);如果($result=mysqli_quer
count
和(id)
之间有一个空格,这将导致查询失败
如果显示它们,则确切的错误为
$sql= ("SELECT COUNT (id) AS total FROM grade ");
$result=mysqli_query($dbConnection, $sql);
echo $result['total'];
查询完$sql=(“选择COUNT(id)AS total FROM books”);如果($result=mysqli_query($dbConnection,$sql)){而($row=mysqli_fetch_assoc($result)){echo$row[“total”];}/*自由结果集*/mysqli_自由结果($result);}
#1630 - FUNCTION YOURDB.COUNT does not exist. Check the 'Function Name Parsing and Resolution' section in the Reference Manual