使用ajax,json和php插入数据

时间:2018-09-13 03:52:49

标签: javascript php ajax

简介我正在使用Ajax,PHP和SQL插入数据库。

错误:alert(data)未定义:名字.....我以为我是在$first_name = strtoupper($_POST['first_name'])文件中使用add.php进行定义的。

Index.php

<script type="text/javascript"> 
    $(document).on('click','#update_btn',function (){
     $.ajax({
            type:'POST',
            url:'add.php',
             datatype: "json",
            data: {
                first_name: $("#first_name").val(),
                last_name: $("#last_name").val(),
                position: $("#position").val(),
                updated: $("#updated").val(),
            }, 
            success: function(data){ 
                alert(data);
                if (data=='ADD_OK') {
                  location.reload();
                } else {
                     alert('something wrong');
                }
                  }
             })
        });

<form id="form1" class="form-inline" method="post" action="">
<input type="text" name="first_name" placeholder="First Name" required>
<input type="text" name="last_name" placeholder="Last Name" required>
<select name="position" id="multiple-select-optgroup-default2" class="custom-select"> 
<option selected>Admin</option>
<option value="Teacher">Teacher</option required>
<option value="Staff">Staff</option>
</select>
<input type="hidden" name="updated" value='<?php echo date("Y-m-d");?>' >
<button class="btn btn-success btn-sm active" type="submit" name="save" id="update_btn"><span class="glyphicon glyphicon-plus-sign"></span> Save</button>
</form>  
</script>

Add.php

 <?php
    $first_name = strtoupper($_POST['first_name']);
    $last_name = strtoupper($_POST['last_name']);
    $position = strtoupper($_POST['position']);
    $updated = $_POST['updated'];  
       $stmt = $conn->prepare("INSERT INTO employees (first_name, last_name, position, updated) VALUES (?, ?, ?, ?)");
       $stmt->bind_param('ssss', $first_name, $last_name, $position, $updated);
       $add = $stmt->execute();

       if($add) {
          echo "ADD_OK";
       }
      ?>

1 个答案:

答案 0 :(得分:2)

这是您的jQuery代码:

data: {
                first_name: $("#first_name").val(),
                last_name: $("#last_name").val(),
                position: $("#position").val(),
                updated: $("#updated").val(),
            }, 

在这种情况下,您尝试通过提及的文本框ID来获取价值

  

$(“#first_name”)。val()

将代码更改为此:

data: {
                first_name: $('input[name="first_name"]').val(),
                last_name: $('input[name="last_name"]').val(),
                position: $('input[name="position"]').val(),
                updated: $('input[name="updated"]').val(),
            }, 

希望它会对您有所帮助。