[javascript] open the file upload dialogue box onclick the image

I want to open the image upload file dialogue box if i click the button tag.is it possible.if so how can i do it in php

while{
    echo "<td><button><img src='".$cfet['productimage']."' width='50' height='40'></button></td>";
}

  <label for="profileImage"> 
  <a style="cursor: pointer;"><em class="fa fa-upload"></em> Change Profile 
  Image</a></label> 
  <input type="file" name="profileImage" id="profileImage" style="display: none;">

you can show the file selection dialog with a onclick function, and if a file is choosen (onchange event) then send the form to upload the file

 <form id='foto' method='post' action='upload' method="POST"  enctype="multipart/form-data" >
  <div style="height:0px;overflow:hidden"> 
  <input type="file" id="fileInput" name="fileInput" onchange="this.form.submit()"/> 
  </div>

  <i class='fa fa-camera' onclick="fileInput.click();"></i>
</form> 

Also, You can write all inline, direct at html code:

<input type="file" id="imgupload">
<a href="#" onclick="$('#imgupload').trigger('click'); return false;">Upload file</a>

return false; - will be useful to decline anchor action after link was clicked.

HTML Code:

 <form method="post" action="#" id="#">
<div class="form-group files color">
    <input type="file" class="form-control" multiple="">
</div>

CSS:

.files input {
outline: 2px dashed #92b0b3;
outline-offset: -10px;
-webkit-transition: outline-offset .15s ease-in-out, background-color .15s linear;
transition: outline-offset .15s ease-in-out, background-color .15s linear;
padding: 120px 0px 85px 35%;
text-align: center !important;
margin: 0;
width: 100% !important;
height: 400px;

}

.files input:focus{    
    outline: 2px dashed #92b0b3; 
    outline-offset: -10px;
   -webkit-transition: outline-offset .15s ease-in-out, background-color .15s linear;
    transition: outline-offset .15s ease-in-out, background-color .15s linear;
  border:1px solid #92b0b3;

}

.files{ position:relative}
   .files:after {  pointer-events: none;
     position: absolute;
     top: 60px;
     left: 0;
    width: 50px;
   right: 0;
   height: 400px;
  content: "";
  background-image: url('../../images/');
  display: block;
  margin: 0 auto;
  background-size: 100%;
  background-repeat: no-repeat;

}

.color input{ background-color:#f1f1f1;}
.files:before {
  position: absolute;
  bottom: 10px;
   left: 0;  pointer-events: none;
  width: 100%;
  right: 0;
  height: 400px;
  display: block;
  margin: 0 auto;
  color: #2ea591;
  font-weight: 600;
  text-transform: capitalize;
  text-align: center;

}

<!-- File input (hidden) -->
<input type="file" id="file1" style="display:none"/>    

<!-- Trigger button -->
<a href="javascript:void(0)" onClick="openSelect('#file1')">

<script type="text/javascript">                            
function openSelect(file)
{
  $(file).trigger('click');
}
</script>

<input type="file" id="imgupload" style="display:none"/>
<label for='imgupload'> <button id="OpenImgUpload">Image Upload</button></label>

On click of for= attribute will automatically focus on "file input" and upload dialog box will open

<button id="OpenImgUpload" onclick="$('#imgupload').trigger('click');">Image Upload</button>
<input type="file" id="imgupload" style="display:none"/> 

you need to add a little hack to achieve this.

You can hide a file upload(input type=file) behind your button.

and onclick of your button you can trigger your file upload click.

It will open a file upload window on click of button

<button id="btnfile"> 
 <img src='".$cfet['productimage']."' width='50' height='40'>
</button> 
<div class="wrapper"> //set wrapper `display:hidden`
     <input type="file" id="uploadfile" /> 
</div>

and some javascript

$("#btnfile").click(function () {
    $("#uploadfile").click();
});

here is a fiddle for this example: http://jsfiddle.net/ravi441988/QmyHV/1/embedded/result/