Answers for "upload image button"

image upload form

<form action="upload.php" method="post" enctype="multipart/form-data">
    <label>Select Image File:</label>
    <input type="file" name="image">
    <input type="submit" name="submit" value="Upload">
</form>

File Upload Button and display file javascript

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form>
  <label for="file-upload" class="custom-file-upload">
    <i class="fa fa-cloud-upload"></i> Upload Image
  </label>
  <input id="file-upload" name='upload_cont_img' type="file" style="display:none;">
</form>

File Upload Button and display file javascript

.custom-file-upload {
  border: 1px solid #ccc;
  display: inline-block;
  padding: 6px 12px;
  cursor: pointer;
}