jQuery实现个人资料页面修改图片成功后，传到数据库，我的页面也能出现修改后的图片，请给出HTML，PHP，MySQL，JS代码

HTML:

<!-- 显示当前图片 -->
<img src="current_image.jpg" id="current-image">

<!-- 上传新图片 -->
<input type="file" id="new-image">

<!-- 保存按钮 -->
<button id="save-button">保存</button>

JS:

$(document).ready(function() {
  // 当选择新图片时，将其显示在页面上
  $('#new-image').change(function() {
    var file = this.files[0];
    var reader = new FileReader();
    reader.onload = function(e) {
      $('#current-image').attr('src', e.target.result);
    }
    reader.readAsDataURL(file);
  });
  
  // 当点击保存按钮时，将新图片上传到服务器
  $('#save-button').click(function() {
    var file = $('#new-image').get(0).files[0];
    var formData = new FormData();
    formData.append('image', file);
    $.ajax({
      url: 'upload.php',
      type: 'POST',
      data: formData,
      contentType: false,
      processData: false,
      success: function(response) {
        if (response.success) {
          // 更新数据库中的图片路径
          var imagePath = response.imagePath;
          $.ajax({
            url: 'update.php',
            type: 'POST',
            data: { imagePath: imagePath },
            success: function(response) {
              if (response.success) {
                alert('保存成功');
              } else {
                alert('保存失败');
              }
            }
          });
        } else {
          alert('上传失败');
        }
      }
    });
  });
});

PHP:

<?php
if ($_FILES['image']['error'] === UPLOAD_ERR_OK) {
  $fileName = $_FILES['image']['name'];
  $fileSize = $_FILES['image']['size'];
  $fileType = $_FILES['image']['type'];
  $fileTempName = $_FILES['image']['tmp_name'];
  $fileExtension = pathinfo($fileName, PATHINFO_EXTENSION);
  $allowedExtensions = array('jpg', 'jpeg', 'png', 'gif');
  if (in_array($fileExtension, $allowedExtensions)) {
    $filePath = 'images/' . uniqid() . '.' . $fileExtension;
    if (move_uploaded_file($fileTempName, $filePath)) {
      echo json_encode(array(
        'success' => true,
        'imagePath' => $filePath
      ));
    } else {
      echo json_encode(array(
        'success' => false
      ));
    }
  } else {
    echo json_encode(array(
      'success' => false
    ));
  }
} else {
  echo json_encode(array(
    'success' => false
  ));
}
?>

MySQL:

UPDATE users SET image_path = 'new_image.jpg' WHERE id = 1;