致命错误：在第7行的C：\ wamp \ www \ triphistory \ get_table.php中的非对象上调用成员函数fetch_assoc（）[关闭]

Question

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$sql = 'SELECT * FROM trip_history WHERE 1';

$result = $connection->query($sql);
while ($row = $result->fetch_assoc()) {

}

Answer 1

将您的查询更改为此查询将返回所有数据

$sql = 'SELECT * FROM trip_history WHERE 1=1';

要么

$sql = 'SELECT * FROM trip_history';

如果你想添加一个条件

$sql = 'SELECT * FROM trip_history WHERE 1=1 And id>0';
or
$sql = 'SELECT * FROM trip_history where  id>0';