[英]Ajax call to PHP only returns “status 200 OK” but no array with database results?
我對使用PDO連接到mysql的php文件進行AJAX調用,並將結果打印到控制台,但顯示的唯一結果是:
Object {readyState: 4, responseText: "", status: 200, statusText: "OK"}
相同的調用適用於msqli,並顯示帶有結果的json,我在做什么錯?
這是代碼:
自定義js:
/*eslint-env jquery, browser*/
$(document).ready(function(){
$("#botono").click(function(){
$.ajax({
type: 'GET',
url: 'phpf/retraerClientes.php',
dataType: 'json',
contentType: 'application/json; charset=utf-8',
success: function(response) {
console.log(response);
},
error: function(error) {
console.log(error);
}
});
});
});
PHP:
ini_set('display_errors', 1);
error_reporting(E_ALL);
define('IS_AJAX', isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
if(!IS_AJAX) {die('');}
$configs = include('config.php');
try{
$conn = new PDO("mysql:host=".$configs["host"].";dbname=".$configs["database"],$configs["use rname"],$configs["password"]);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "SELECT * FROM prueba";
$results = $conn->query($sql)->fetchAll(PDO::FETCH_ASSOC);
$jsonFinal = json_encode($results);
echo $jsonFinal;
}catch(PDOException $ex){
echo 'Connection With Database Failed: '.$ex->getMessage();
}
更新:我找到了答案:
$accents = $conn->query("SET NAMES 'utf8'");
缺少該行,我的記錄帶有重音,使最終的json損壞並產生了誤報
如我所見,您需要在PHP中執行查詢:
ini_set('display_errors', 1);
error_reporting(E_ALL);
define('IS_AJAX', isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest');
if(!IS_AJAX) {die('');}
$configs = include('config.php');
try{
$conn = new PDO("mysql:host=".$configs["host"].";dbname=".$configs["database"],$configs["use rname"],$configs["password"]);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$sql = "SELECT * FROM prueba";
$results = $conn->prepare($sql)->execute()->fetchAll(PDO::FETCH_ASSOC);
$jsonFinal = json_encode($results);
echo $jsonFinal;
}catch(PDOException $ex){
echo 'Connection With Database Failed: '.$ex->getMessage();
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.