我正在编码一个使用JSON发送数组响应的php服务器。现在,我只是测试php代码,但结果为空:
{"routes":[]}
PHP中有我的代码:
<?php
require_once 'connect.php';
if ($_SERVER['REQUEST_METHOD'] =='POST') {
$region = $_POST['region'];
$sql = "SELECT * FROM routes WHERE region='$region'";
$result = mysqli_query($conn, $sql);
$dbdata = array();
while ($row = $result->fetch_assoc()) {
$dbdata[] = $row;
}
$obj = (object)[
'routes' => $dbdata
];
echo json_encode($obj, JSON_UNESCAPED_SLASHES);
}
?>
我正在邮递员中进行测试,并发送POST:
http://MY PATH/filter.php?"region"=West
答案 0 :(得分:0)
1)添加
error_reporting(E_ALL);
到脚本顶部。如果有什么有趣的事情,它将显示错误。
2)将帖子更改为获取以进行测试 3)转到页面
http://MY PATH/filter.php?"region"=West //-> remove the quotes
http://MY PATH/filter.php?region=West //->This is what the request will look like
4)我们看到什么了吗? 5)如果什么都没有,请使用变量来测试事物
ex:
$region = $_GET['region'];
echo $region; //Should print West
$sql = "SELECT * FROM routes WHERE region='$region'";
$result = mysqli_query($conn, $sql);
echo "<pre>";
print_r($results) // and so on until you see something you can use
$dbdata = array();
答案 1 :(得分:0)
在最终结果中添加2行,然后查看结果:
'routes' => $dbdata,
'valid' => $result != false,
'num_rows' => $result->num_rows,