Question

我使用c＃创建了JSon文件，以从本地MySQL数据库导出所选记录。 php代码用于将JSon文件recods插入MySQL远程数据库。但问题是，当我运行php代码时，它只将JSon中的第一条记录插入数据库而不是JSon文件中的所有记录。

但我想将所有记录都插入数据库。

table : tbl_sales
the id field is AutoIncrement

+--------------------+-------------+------+-----+---------+----------------+
| Field              | Type        | Null | Key | Default | Extra          |
+--------------------+-------------+------+-----+---------+----------------+
| sale_item          | varchar(20) | NO   |     | NULL    |                |
| sale_qty           | int(11)     | NO   |     | NULL    |                |
| local_row_added_on | datetime    | NO   |     | NULL    |                |
| last_edited_on     | datetime    | YES  |     | NULL    |                |
| id                 | int(11)     | NO   | PRI | NULL    | auto_increment |
+--------------------+-------------+------+-----+---------+----------------+

<?php
    $connect = mysqli_connect("localhost", "root", "", "mytest"); // 1.
    $query = '';
    $table_data = '';
    $filename = "path.json";

    $data = file_get_contents($filename); // 2.
    $array = json_decode($data, true); // 3. 

    foreach($array as $row) // 4. 
    {
      $query .= "INSERT INTO tbl_sales(sale_item, sale_qty, local_row_added_on, last_edited_on) VALUES ('".$row["sale_item"]."', '".$row["sale_qty"]."', '".$row["local_row_added_on"]."', '".$row["last_edited_on"]."'); ";  // 5. 
      mysqli_query($connect, $query); // 6.         
    }

    echo "<h1>Successfully Imported JSON Data</h1>"; 
    // 1. Connect PHP to MySQL Database
    // 2. Read the JSON file in PHP
    // 3. Convert JSON String into PHP Array
    // 4. Extract the Array Values by using Foreach Loop
    // 5. Make Multiple Insert Query 
    // 6. Run Mutliple Insert Query
?>

JSon文件记录（path.json）：

[
{
    "sale_item":"Sugar",
    "sale_qty":"5",
    "local_row_added_on":"2018-05-08 10:10:24",
    "last_edited_on":"2018-05-08 10:10:24",
    "id":"1"
},
{
    "sale_item":"Keyboard",
    "sale_qty":"2",
    "local_row_added_on":"2018-05-07 08:14:41",
    "last_edited_on":"2018-05-07 06:14:53",
    "id":"2"
},
{
    "sale_item":"Biscuit",
    "sale_qty":"3",
    "local_row_added_on":"2018-05-06 12:15:17",
    "last_edited_on":"2018-05-06 12:15:35",
    "id":"3"
},
{
    "sale_item":"Pen",
    "sale_qty":"25",
    "local_row_added_on":"2018-05-14 03:20:22",
    "last_edited_on":"2018-05-14 03:20:25",
    "id":"4"
},
{
    "sale_item":"Snacks",
    "sale_qty":"6",
    "local_row_added_on":"2018-05-07 05:30:40",
    "last_edited_on":"2018-05-16 05:30:40",
    "id":"5"}
]

Answer 1

构建查询时，您正在使用

这会将内容添加到之前的值。这是第一次没关系，因为之前没有内容。第二次它在旧的插件上添加一个新的插件并且会失败。删除$query =以设置新语句。

// This file is PHP.
<html>    
<?php
    if ($_POST['submit']) {
        $firstname = $_POST['firstname'];
        $lastname = $_POST['lastname'];
        $email = $_POST['email'];
        $password = $_POST['password'];
        $confirmpassword = $_POST['confirmpassword'];
        $strtadd1 = $_POST['strtadd1'];
        $strtadd2 = $_POST['strtadd2'];
        $city = $_POST['city'];
        $country = $_POST['country'];
        $success = '';


        // Upon Success.
        if ($firstname != '' && $lastname != '' && $email != '' && $password != '' && $confirmpassword != '' && $strtadd1 != '' && $strtadd2 != '' && $city != '' && $country != '') {
            // Change $success variable from an empty string.
            $success = 'success';

            // Insert whatever you want to do upon success.

        } else {
            // Upon Failure.
            echo '<p class="error">Fill in all fields.</p>';

            // Set $success variable to an empty string.
            $success = '';
        }
    }
   ?>
<form method="POST" action="#">
    <label class="w">Plan :</label>
    <select autofocus="" name="plan" required="required">
        <option value="">Select One</option>
        <option value="FREE Account">FREE Account</option>
        <option value="Premium Account Monthly">Premium Account Monthly</option>
        <option value="Premium Account Yearly">Premium Account Yearly</option>
    </select>
    <br>
    <label class="w">First Name :</label><input name="firstname" type="text" placeholder="First Name" required="required" value="<?php if (isset($firstname) && $success == '') {echo $firstname;} ?>"><br>
    <label class="w">Last Name :</label><input name="lastname" type="text" placeholder="Last Name" required="required" value="<?php if (isset($lastname) && $success == '') {echo $lastname;} ?>"><br>
    <label class="w">E-mail ID :</label><input name="email" type="email"  placeholder="Enter Email" required="required" value="<?php if (isset($email) && $success == '') {echo $email;} ?>"><br>
    <label class="w">Password :</label><input name="password" type="password" placeholder="********" required="required" value="<?php if (isset($password) && $success == '') {echo $password;} ?>"><br>
    <label class="w">Re-Enter Password :</label><input name="confirmpassword" type="password" placeholder="********" required="required" value="<?php if (isset($confirmpassword) && $success == '') {echo $confirmpassword;} ?>"><br>
    <label class="w">Street Address 1 :</label><input name="strtadd1" type="text" placeholder="street address first" required="required" value="<?php if (isset($strtadd1) && $success == '') {echo $strtadd1;} ?>"><br>
    <label class="w">Street Address 2 :</label><input name="strtadd2" type="text" placeholder="street address second"  value="<?php if (isset($strtadd2) && $success == '') {echo $strtadd2;} ?>"><br>
    <label class="w">City :</label><input name="city" type="text" placeholder="City" required="required" value="<?php if (isset($city) && $success == '') {echo $city;} ?>"><br>
    <label class="w">Country :</label><select autofocus="" id="a1_txtBox1" name="country" required="required" placeholder="select one" value="<?php if (isset($country) && $success == '') {echo $country;} ?>">
    <input type="submit" name="submit">
</form>
</html>

您还应该查看预处理语句和绑定变量，这有助于防止SQL注入，并可以通过其他方式提供帮助。

Answer 2

请试试这个，您的查询是：

$sql = "SELECT * FROM main SET PendDays = CURRENT_DATE - RequiredDate ORDER BY ReqstDate DESC"

你应该在foreach循环之后执行你的查询：

INSERT INTO tbl_sales(sale_item, sale_qty, local_row_added_on, 
last_edited_on) VALUES ('Sugar', '5', '2018-05-08 10:10:24', '2018-05-08 
10:10:24'); 
INSERT INTO tbl_sales(sale_item, sale_qty, local_row_added_on, 
last_edited_on) VALUES ('Keyboard', '2', '2018-05-07 08:14:41', '2018-05-07 
06:14:53'); 
INSERT INTO tbl_sales(sale_item, sale_qty, local_row_added_on, 
last_edited_on) VALUES ('Biscuit', '3', '2018-05-06 12:15:17', '2018-05-06 
12:15:35'); 
INSERT INTO tbl_sales(sale_item, sale_qty, local_row_added_on, 
last_edited_on) VALUES ('Pen', '25', '2018-05-14 03:20:22', '2018-05-14 
03:20:25'); 
INSERT INTO tbl_sales(sale_item, sale_qty, local_row_added_on, 
last_edited_on) VALUES ('Snacks', '6', '2018-05-07 05:30:40', '2018-05-16 
05:30:40');

Php仅从JSon文件向MySQL插入第一条记录

2 个答案: