如何每行从文本区域输入行保存长文本

Question

如何从每行文本区域输入行保存长文本我有一个带有文本区域的表单，我想在 mysql 中每行保存一个长文本行我不知道

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Answer 1

您需要了解 mysql 如何与 DB 交互。 您可能需要使用 VARCHAR 数据类型，具体取决于您的文本区域有多大。 因此，如果来自 from 的字段最多 250 个字符，则文本区域列的数据类型将为 VARCHAR(250)。

您可以使用以下内容向文件发出 POST 请求：

$post = $_POST;
//set other fields here, I recommend sanitizing your inputs.
...
$textarea = $_POST['text_area'];
$servername = "HOST";   
$username = "username"; 
$password = "password";

// Create connection
$conn = new mysqli($servername, $username, $password);

// Check connection
if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO MyGuests (...other columns you have, textarea)
       VALUES (..., $textarea)";

if ($conn->query($sql) === TRUE) {
   echo "New record created successfully";
} else {
   echo "Error: " . $sql . "<br>" . $conn->error;
}

我强烈建议查看两个链接：
如何通过 php 过滤输入（在 sql 执行之前使用）
PHP MySQL 插入数据

Answer 2

follow these steps to save any type of data in mysql using php

Step one

open xampp and run tomcat and mysql 

Step two 

now go to phpmyadmin and create a database mydatabase 
and create table named  posts and add fields id , title , description;

Datatypes for you columns

id = int  make it auto_increment and primary key !important
title = varchar(256)
description  = longtext

remember to select these datatypes in phpmyadmin

Step three

open your code editor make a file called posts.html and past 
the below code in your body section 

    <form action='post.php' method='post'>

    <div class="form-group">
    <label >Post title </label>
    <input type="text" name='title' class="form-control">
    </div>

    <div class="form-group">
    <label >Post Description</label>
    <textarea name='descp'  rows="3"></textarea>
    </div>

    <button type="submit" class="btn btn-primary">Submit</button>
    </form>

Step Four

now to handle the action you have to create a file post.php and past the blow code 



        <?php 
    $con = mysqli_connect('localhost' , 'root' , '' , 'mydatabase'); 
    if($_SERVER['REQUEST_METHOD'] == 'POST'){ 
        $title =   $_POST['title']; $descp =   $_POST['descp'];
         $query = "insert into posts(title , description) value($title , $descp)";
          $result = mysqli_query($con , $query);
           if($result){ echo 'data saved successfully'; }
           else{ echo "sorry their is an error please try again"; 
           } }
           ?>


Step five 

now open you phpmyadmin and go the database named mydatabase and open the table posts you fill find the record their which you have submitted now .

Answer 3

如果我查看您的表单数据会更容易。 我将假设我自己的表单数据来尝试回答您的问题。
表格.php

            <form action="processing.php" method="POST">
                  <textarea required name="records" class="form-control" rows="8" cols="4" placeholder="Enter records separated by new line"></textarea>
              <button type="submit" name="addRecords" class="btn btn-warning">Add Records</button>
            </form>

然后加工.php

if (isset($_POST['addRecords'])) {
    $record = $_POST['records'];
    //explode records based on new line \n
    $records = explode("\n", $record);

    foreach ($records as $new) {
      $data = $new;
      //Here you'll write your sql code to insert records in the database
      
    }
  }