Upload file with uploading progress


  • index.php

<script type="text/javascript">
    function _(el){
        return document.getElementById(el);
    }

    function uploadFile(){
        var file = _("file1").files[0];
        var formdata = new FormData();
        formdata.append("file1",file);
        var ajax = new XMLHttpRequest();
        ajax.upload.addEventListener("progress",progressHandler,false);
        ajax.addEventListener("load",completeHandler,false);
        ajax.addEventListener("error",errorHandler,false);
        ajax.addEventListener("abort",abortHandler,false);
        ajax.open("POST","server_page.php");
        ajax.send(formdata);
    }

    function progressHandlere(vent){
        _("loaded_n_total").innerHTML = "Uploaded "+event.loaded+"bytes of "+event.total;
        var persent = (event.loaded/event.total)*100;
        _("progressBar").value = Math.round(persent);
        _("status").innerHTML = Math.round(persent)+"% uploaded...please wait.";
    }

    function completeHandler(event){
        _("status").innerHTML = event.target.responseText;
        _("progressBar").value = 0;
    }

    function errorHandler(event){
        _("status").innerHTML = "Upload failed";
    }

    function abortHandler(event){
        _("status").innerHTML = "Upload aborted";
    }
</script>
<body>
    <form id="uploadForm" action="" method="post" enctype="multipart/form-data">
        <input type="file" name="file1" id="file1"><br/>
        <input type="button" value="Upload File" onclick="uploadFile()"><br/>
        <progress id="progressBar" value="0" max="100" style="width:300px;"></progress>
        <span id="status"></span>
        <p id="loaded_n_total"></p>
    </form>
</body>


  • server_page.php

<?php
$fileName = $_FILES["file1"]["name"]; // The file name
$fileTmpLocation = $_FILES['file1']["tmp_name"]; //File in the php tmp folder
$fileType = $_FILES['file1']['type']; //The type of file it is
$fileSize = $_FILES['file1']['size']; // File size in byte
$fileErrorMsg = $_FILES['file1']['error']; // 0 for false 1 for true

if(!$fileTmpLocation){
echo "Error : Please browse for a file before clicking the upload button";
exit();
}

if(move_uploaded_file($fileTmpLocation, "upload/$fileName")){
echo "$fileName upload is completed";
}else{
echo "move_uploaded_file() function is failed";
}

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