Question

我知道这个问题看起来像是重复的，但我真的读了很多，但并没有解决问题。

我想回显sql中的最后10行，我收到此错误。

Warning: mysqli_fetch_array() expects parameter 1 to be mysqli_result, boolean given in C:\rock\fyp\postAdv.php on line 10

THE Event: 

THE Date:

THE Time:

THE Venue:

Note:

php文件是

<?php
$con=mysqli_connect("rock","mido","1234","fyp");
// Check connection
if (mysqli_connect_errno())
  {
  echo "Failed to connect to MySQL: " . mysqli_connect_error();
  }
 $start = 10;
 $result = mysqli_query($con,"SELECT * FROM event ORDER BY ID DESC LIMIT $start,10");
  $row = mysqli_fetch_array($result) ;

 {

  echo "<br><h4> " . "THE Event:  " . $row['EventName'] . "</br>";
  echo "<h4>" . "THE DATE:  " . $row['Date'] ;
  echo "<h4>" . "THE TIME:  " . $row['Time'] ;
  echo "<h4>" . "THE Venue:  " . $row['Venue'] ;
  echo "<h4>" . "Note:  " . $row['Note'] ;

  }

mysqli_close($con);
?>

Answer 1

$result是一个布尔值，因为您正在执行的查询失败！失败的查询会发出布尔值'false'。

检查您的查询。在查询中使用之前，请尝试使用值设置$ start。

Answer 2

在您的查询重试之前设置$ start = 1。

$start = 1;

警告：mysqli_fetch_array（）期望参数1为mysqli_result，布尔值为

2 个答案: