如何顯示在PHP

Question

我想指望用下面的代碼總行數的MySQL表的總數：

$countvideo = "SELECT count(id) FROM `videos`"; 
$countvideo_run = mysqli_query($connect, $countvideo); 
if($countvideo_run){ 
     $countvideo_result = mysql_result($countvideo_run, 0, 'count(id)'); 
    } 

但它表明我這個錯誤：

Warning: mysql_result() expects parameter 1 to be resource, object given in C:\xampp\htdocs\task\media\new\adminpanel.php on line 121

怎麼能我數這個？

Answer 1

你混合mysqli和mysql功能

$countvideo = "SELECT count(id) as `total` FROM `users`"; 
$countvideo_run = mysqli_query($connect, $countvideo); 
if ($countvideo_run) { 
    $countvideo_result = $countvideo_run->fetch_object(); 
    $total = $countvideo_result->total; 
} 

Answer 2

您使用mysql_result代替mysqli_result。

Answer 3

您正在混合mysqli_返回對象與不兼容的mysql_函數。

$countvideo = "SELECT count(id) qty FROM `videos`"; 
if (($result = mysqli_query($connect, $countvideo)) !== false) { 
    $row = $result->fetch_assoc(); 
    $countvideo_result = $row['qty']; 
}