所以,我收到了这个错误:
Fatal error: Call to a member function fetch_assoc() on a non-object
它说错误在第220行。
第220行是:
while ($field = $result->fetch_assoc()) {
$结果:
$tbl_name = "savage";
$sql = "SELECT * FROM $tbl_name LIMIT $start, $limit ORDER BY `id` DESC";
$result = $mysqli->query($sql);
我不确定是不是因为$ tbl_name在变量中或者是什么,但我还没有想到如何解决这个问题。可能是一个简单的答案,但希望你能帮忙!如果我需要提供更多信息,请告诉我们。
忘了包括:
$limit = 10;
if(isset($_GET['page'])) {
$page = $_GET['page'];
$start = ($page - 1) * $limit;
} else {
$page = 0;
$start = 0;
}
在这种情况下,$ _GET [' page']未设置。
答案 0 :(得分:1)
LIMIT
追踪ORDER BY
$sql = "SELECT * FROM $tbl_name ORDER BY `id` DESC LIMIT $start, $limit";
手册中的示例:
SELECT
[ALL | DISTINCT | DISTINCTROW ]
[HIGH_PRIORITY]
[STRAIGHT_JOIN]
[SQL_SMALL_RESULT] [SQL_BIG_RESULT] [SQL_BUFFER_RESULT]
[SQL_CACHE | SQL_NO_CACHE] [SQL_CALC_FOUND_ROWS]
select_expr [, select_expr ...]
[FROM table_references
[WHERE where_condition]
[GROUP BY {col_name | expr | position}
[ASC | DESC], ... [WITH ROLLUP]]
[HAVING where_condition]
[ORDER BY {col_name | expr | position}
[ASC | DESC], ...]
[LIMIT {[offset,] row_count | row_count OFFSET offset}]