Ajax-запрос возвращает dom как данные, а не данные из моей базы данных

#javascript #php #mysql #ajax

Вопрос:

Я пытаюсь получить данные из своей БД с помощью Ajax-запроса, используя JS и PHP, но когда я в консоли.регистрируйте результат, который он дает мне в качестве ответа DOM, а не Json, которого я жду.

JS :

`

 $('#ref').on('input', function() {
  let value = $('#ref').val()

  $.ajax({
    type : "POST",
    url : '../ajax/ajaxSearchByRef.php',
    data : { 
      value : value
    }, 
    success:function(msg) {
      console.log(msg)
    }

  })
})
 

`

PHP :

 <?php 



require './functions/functions.php';
try {
    $pdo = new PDO($dsn, $user, $password);

} catch (PDOException $e) {
    echo $e->getMessage();
}

$value = $_POST['value']; 
$result = $pdo->query("SELECT a.id, a.article, a.designation_en, a.description_en, a.designation_fr, a.description_fr, b.id as group_id, b.name 
FROM products as a INNER JOIN fct_group as b ON b.id = a.fct_group_id AND a.fct_group_id = b.id WHERE a.article LIKE %".$value."%"); 

$list = $result->fetchAll();

echo json_encode($list);
 

результат console.log :

 <pre class='xdebug-var-dump' dir='ltr'>
<small>C:wamp64wwwpocSompageshome.php:18:</small><small>float</small> <font color='#f57900'>1382</font>
</pre> 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">

    <title>Document</title>
</head>
<body>
<div class="float-right mr-2" > <a href="/uploadpage"> upload a file </a> </div> 
    <div class="container text-center"> 
    
        <h2> ALE Service offer Manager </h2>
        
    </div> 
    
    <div class="container">
      <div class='text-center'>
      <input id='ref' type='text' name='reference' placeholder="search by reference" /> 
      </div>
      <p> The catalogue contains 27638 products </p>  
    <table class="table table-hover table-dark">
  <thead>
    <tr>
     
      <th scope="col">Article reference</th>
      <th scope="col"> English designation</th>
      <th scope="col"> English description </th>
      <th scope="col"> French designation </th>
      <th scope="col"> French description </th>
      <th scope="col"> Functional Group </th> 
    </tr>
  </thead>
  <tbody>
       
    <tr>
        <td> HAW-AP1101-RW</td>
        <td> NaaS Stellar HAW-AP1101-RW Hardware </td>
        <td> NaaS Stellar AP1101. Dual radio 2x2 802.11a/b/g/n/ac AP, integrated antenna, 1 x 10/100/1000Base-T RJ-45) w/802.3af POE, 1x48V DC power interface, Console port. Unrestricted Regulatory Domain. MUST NOT be used for US, Japan or Israel.  LAW-AP1101 needed## </td>
        <td> NaaS Stellar HAW-AP1101-RW Hardware </td>
        <td> NaaS Stellar AP1101. Dual radio 2x2 802.11a/b/g/n/ac AP, integrated antenna, 1 x 10/100/1000Base-T RJ-45) w/802.3af POE, 1x48V DC power interface, Console port. Unrestricted Regulatory Domain. MUST NOT be used for US, Japan or Israel.  LAW-AP1101 needed## </td>
        <td> X3I </td>
     
    </tr>
     
       
    <tr>
        <td> HAW-AP1101-US</td>
        <td> NaaS Stellar HAW-AP1101-US Hardware </td>
        <td> NaaS Stellar AP1101. Dual radio 2x2 802.11a/b/g/n/ac AP, integrated antenna, 1 x 10/100/1000Base-T RJ-45) w/802.3af POE, 1x48V DC power interface, Console port. Regulatory Domain United States. LAW-AP1101 needed## </td>
        <td> NaaS Stellar HAW-AP1101-US Hardware </td>
        <td> NaaS Stellar AP1101. Dual radio 2x2 802.11a/b/g/n/ac AP, integrated antenna, 1 x 10/100/1000Base-T RJ-45) w/802.3af POE, 1x48V DC power interface, Console port. Regulatory Domain United States. LAW-AP1101 needed## </td>
        <td> X3I </td>
     
    </tr>
     
       
    <tr>
        <td> 300790730</td>
        <td> VQIP Classic-Active Conversion Fee </td>
        <td> VQIP, Classic-Active Conversion Fee# </td>
        <td> VQIP Classic-Active Conversion Fee </td>
        <td> VQIP, Classic-Active Conversion Fee# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955838</td>
        <td> VQIP CLASSIC 5K TO 10K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, Up to 9,999 IP Addresses Supported, per IP#address# </td>
        <td> VQIP CLASSIC 5K TO 10K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, Up to 9,999 IP Addresses Supported, per IP#address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955846</td>
        <td> VQIP CLASSIC 10K TO 25K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 10,000 - 24,999 IP Addresses Supported, per#IP address# </td>
        <td> VQIP CLASSIC 10K TO 25K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 10,000 - 24,999 IP Addresses Supported, per#IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955853</td>
        <td> VQIP CLASSIC 25K TO 50K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 25,000 - 49,999 IP Addresses Supported, per#IP address# </td>
        <td> VQIP CLASSIC 25K TO 50K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 25,000 - 49,999 IP Addresses Supported, per#IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955861</td>
        <td> VQIP CLASSIC 50K TO 100K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 50,000 - 99,999 IP Addresses Supported, per#IP address# </td>
        <td> VQIP CLASSIC 50K TO 100K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 50,000 - 99,999 IP Addresses Supported, per#IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955879</td>
        <td> VQIP CLASSIC 100K TO 250K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 100,000 to 249,999 IP Addresses Supported,#per IP address# </td>
        <td> VQIP CLASSIC 100K TO 250K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 100,000 to 249,999 IP Addresses Supported,#per IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955887</td>
        <td> VQIP CLASSIC 500K TO 750K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 500,000 to 749,999 IP Addresses Supported,#per IP address# </td>
        <td> VQIP CLASSIC 500K TO 750K PER IP ADDRESS </td>
        <td> VQIP Classic licensing RTU, 500,000 to 749,999 IP Addresses Supported,#per IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955895</td>
        <td> VQIP CLASSIC 1M  IP ADDRESS PER IP ADDR </td>
        <td> VQIP Classic licensing RTU, 1M  IP Addresses Supported, per IP address# </td>
        <td> VQIP CLASSIC 1M  IP ADDRESS PER IP ADDR </td>
        <td> VQIP Classic licensing RTU, 1M  IP Addresses Supported, per IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300955994</td>
        <td> VQIP ACTIVE 5K TO 10K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, Up to 9,999 IP Addresses Supported, per IP#address# </td>
        <td> VQIP ACTIVE 5K TO 10K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, Up to 9,999 IP Addresses Supported, per IP#address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956000</td>
        <td> VQIP ACTIVE 10K TO 25K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 10,000 - 24,999 IP Addresses Supported, per#IP address# </td>
        <td> VQIP ACTIVE 10K TO 25K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 10,000 - 24,999 IP Addresses Supported, per#IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956018</td>
        <td> VQIP ACTIVE 25K TO 50K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 25,000 - 49,999 IP Addresses Supported, per#IP address# </td>
        <td> VQIP ACTIVE 25K TO 50K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 25,000 - 49,999 IP Addresses Supported, per#IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956026</td>
        <td> VQIP ACTIVE 50K TO 100K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 50,000 - 99,999 IP Addresses Supported, per#IP address# </td>
        <td> VQIP ACTIVE 50K TO 100K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 50,000 - 99,999 IP Addresses Supported, per#IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956034</td>
        <td> VQIP ACTIVE 250K TO 500K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 250,000-499,999 IP Addresses Supported, per#IP address# </td>
        <td> VQIP ACTIVE 250K TO 500K PER IP ADDRESS </td>
        <td> VQIP Active licensing RTU, 250,000-499,999 IP Addresses Supported, per#IP address# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956208</td>
        <td> VQIP ENUM MGR RTU,1K TO 4,999 SUB </td>
        <td> VQIP ENUM Manager RTU, 1,000 to 4,999 Subscribers Supported, per subscriber## </td>
        <td> VQIP ENUM MGR RTU,1K TO 4,999 SUB </td>
        <td> VQIP ENUM Manager RTU, 1,000 to 4,999 Subscribers Supported, per subscriber## </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956216</td>
        <td> VQIP ENUM MGR RTU,5K TO 9,999 SUB </td>
        <td> VQIP ENUM Manager RTU, 5,000 to 9,999 Subscribers Supported, per subscriber## </td>
        <td> VQIP ENUM MGR RTU,5K TO 9,999 SUB </td>
        <td> VQIP ENUM Manager RTU, 5,000 to 9,999 Subscribers Supported, per subscriber## </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956224</td>
        <td> VQIP ENUM MGR 10K TO 25K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 10,000 - 24,999 Subscribers Supported, per#subscriber# </td>
        <td> VQIP ENUM MGR 10K TO 25K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 10,000 - 24,999 Subscribers Supported, per#subscriber# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956232</td>
        <td> VQIP ENUM MGR 25K TO 50K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 25,000 - 49,999 Subscribers Supported, per#subscriber# </td>
        <td> VQIP ENUM MGR 25K TO 50K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 25,000 - 49,999 Subscribers Supported, per#subscriber# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956240</td>
        <td> VQIP ENUM MGR 50K TO 100K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 50,000 - 99,999 Subscribers Supported, per#subscriber# </td>
        <td> VQIP ENUM MGR 50K TO 100K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 50,000 - 99,999 Subscribers Supported, per#subscriber# </td>
        <td> YB </td>
     
    </tr>
     
       
    <tr>
        <td> 300956257</td>
        <td> VQIP ENUM MGR 100K TO 250K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 100,000-249,999 Subscribers Supported, per#subscriber# </td>
        <td> VQIP ENUM MGR 100K TO 250K PER IP ADDR </td>
        <td> VQIP ENUM Manager RTU, 100,000-249,999 Subscribers Supported, per#subscriber# </td>
        <td> YB </td>
     
    </tr>
     
       

  </tbody>
</table>

    </div>


</body>
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X 965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH 8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM B07jRM" crossorigin="anonymous"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>

<script>

$('#ref').on('input', function() {
  let value = $('#ref').val()

  $.ajax({
    type : "POST",
    url : '../ajax/ajaxSearchByRef.php',
    data : { 
      value : value
    }, 
    success:function(msg) {
      console.log(msg)
    }

  })
})

</script>

</html>
 

Комментарии:

1. Добавить console.log результат

2. в функции успеха ? Я добавил его, и это значение не определено

3. добавьте результат «console.log(msg)» в вопрос

4. Вы не можете извлечь ../ajax/ajaxSearchByRef.php , например, из localhost:8080/home.php (технически вы можете, но результат, вероятно, не такой, как вы ожидаете). Почему вы идете вверх? Какова ваша структура папок и каков ваш www-корень? Вы пытаетесь загрузить файл из-за пределов своего проекта?

5. У вас есть опечатка в sql-запросе , так как ваш шаблон поиска должен быть заключен в одинарные кавычки: '%...%' , но вы не должны использовать интерполяцию строк, вы должны использовать подготовленную инструкцию с параметризованными запросами.

Ответ №1:

Проблема заключается в передаче запроса.

  1. Убедитесь, что ваш php код находится в другом файле, похоже, что это не так.
  2. Даже если вы выполняете запрос на ту же страницу, убедитесь, что вы обрабатываете его правильно.

Например,

HTML, JS, CSS в другом файле и php в другом файле, затем

 <?php 
require './functions/functions.php';
try {
    $pdo = new PDO($dsn, $user, $password);

} catch (PDOException $e) {
    echo $e->getMessage();
}

if(isset($_POST['value'])){//Work on request accurately
    $value = $_POST['value'];
    $result = $pdo->query("SELECT a.id, a.article, a.designation_en, a.description_en, a.designation_fr, a.description_fr, b.id as group_id, b.name 
FROM products as a INNER JOIN fct_group as b ON b.id = a.fct_group_id AND a.fct_group_id = b.id WHERE a.article LIKE %".$value."%"); 

    $list = $result->fetchAll();
    echo json_encode($list);
}
 

HTML,JS и php — все на 1 странице, и делать запрос на одну и ту же страницу {не рекомендуется}

 <?php 
require './functions/functions.php';
try {
    $pdo = new PDO($dsn, $user, $password);

} catch (PDOException $e) {
    echo $e->getMessage();
}

if(isset($_POST['value'])){//Work on request accurately
    $value = $_POST['value'];
    $result = $pdo->query("SELECT a.id, a.article, a.designation_en, a.description_en, a.designation_fr, a.description_fr, b.id as group_id, b.name 
FROM products as a INNER JOIN fct_group as b ON b.id = a.fct_group_id AND a.fct_group_id = b.id WHERE a.article LIKE %".$value."%"); 

    $list = $result->fetchAll();
    echo json_encode($list);
}
else{?>
<!-- Here the HTML part with javascript css whatever -->
<?php
}
?>
 

После того, как вы правильно обработаете запрос, вы получите именно то, что хотите для конкретного запроса.

Вывод:-

  1. Не связывайтесь с интерфейсом и бэкендом {php, html} для файла, на который сделан запрос Ajax.
  2. Старайтесь обрабатывать запросы как можно аккуратнее, это уменьшит конфликты между различными запросами.

например, для:-

 if($_POST['action']== 'hello') echo "handling request for hello";
else if($_POST['action']== 'bye' echo "handling request for bye";
.
.
.
else { //some error code or some defaults}
 

Для любых запросов прокомментируйте ниже.