Load progress bar with php and jquery

Question

So, I'm trying to upload with a progress bar, I installed uploadprogress pecl, and the upload worked fine if the action on the form results in upload.phpany other name and stops working.

If the name is not upload.php, then the output will be just "100" (which you can see why below with the getprogress.php file) this is the form: (these versions work, since the upload.php file)

<form method="post" action="/test/upload.php" enctype="multipart/form-data" id="upload-form" target="upload-frame">
        <input type="hidden" id="uid" name="UPLOAD_IDENTIFIER" value="<?php echo $uid; ?>">
        <input type="file" name="file">
        <input type="submit" name="submit" value="Upload!">
    </form>
    </div>
    <div style="float:left;width:100%;">
    <div id="progress-bar"></div>
    </div>
    <iframe id="upload-frame" name="upload-frame"></iframe>

this is jquery:

<script>
        (function ($) {
            var pbar;
            var started = false; 
            $(function () {
                $('#upload-form').submit(function() {
                    pbar = $('#progress-bar');
                    pbar.show().progressbar();
                    $('#upload-frame').load(function () {
                        started = true;
                    });
                    setTimeout(function () {
                        updateProgress($('#uid').val());
                    }, 1000);
                });
            });
            function updateProgress(id) {
                var time = new Date().getTime();
                $.get('../uploadprogress/getprogress.php', { uid: id, t: time }, function (data) {
                    var progress = parseInt(data, 10);
                    if (progress < 100 || !started) {
                        started = progress < 100;
                        updateProgress(id);
                    }
                    started && pbar.progressbar('value', progress);
                });
            }
        }(jQuery));
</script>

this is a file getprogress.php

<?php
if (isset($_GET['uid'])) {
   // Fetch the upload progress data
   $status = uploadprogress_get_info($_GET['uid']);
   if ($status) {
       // Calculate the current percentage
       echo round($status['bytes_uploaded']/$status['bytes_total']*100, 1);
   }
   else {
       // If there is no data, assume it done
       echo 100;
   }
}
?>

ive spent about 5 hours trying to figure out why, and I can't. help would be greatly appreciated.

Answer 1

You can use this class without using jquery:

<?php

/**
 * Progress bar for a lengthy PHP process
 * http://spidgorny.blogspot.com/2012/02/progress-bar-for-lengthy-php-process.html
 */

class ProgressBar {
    var $percentDone = 0;
    var $pbid;
    var $pbarid;
    var $tbarid;
    var $textid;
    var $decimals = 1;

    function __construct($percentDone = 0) {
        $this->pbid = 'pb';
        $this->pbarid = 'progress-bar';
        $this->tbarid = 'transparent-bar';
        $this->textid = 'pb_text';
        $this->percentDone = $percentDone;
    }

    function render() {
        //print ($GLOBALS['CONTENT']);
        //$GLOBALS['CONTENT'] = '';
        print($this->getContent());
        $this->flush();
        //$this->setProgressBarProgress(0);
    }

    function getContent() {
        $this->percentDone = floatval($this->percentDone);
        $percentDone = number_format($this->percentDone, $this->decimals, '.', '') .'%';
        $content .= '<div id="'.$this->pbid.'" class="pb_container">
            <div id="'.$this->textid.'" class="'.$this->textid.'">'.$percentDone.'</div>
            <div class="pb_bar">
                <div id="'.$this->pbarid.'" class="pb_before"
                style="width: '.$percentDone.';"></div>
                <div id="'.$this->tbarid.'" class="pb_after"></div>
            </div>
            <br style="height: 1px; font-size: 1px;"/>
        </div>
        <style>
            .pb_container {
                position: relative;
            }
            .pb_bar {
                width: 100%;
                height: 1.3em;
                border: 1px solid silver;
                -moz-border-radius-topleft: 5px;
                -moz-border-radius-topright: 5px;
                -moz-border-radius-bottomleft: 5px;
                -moz-border-radius-bottomright: 5px;
                -webkit-border-top-left-radius: 5px;
                -webkit-border-top-right-radius: 5px;
                -webkit-border-bottom-left-radius: 5px;
                -webkit-border-bottom-right-radius: 5px;
            }
            .pb_before {
                float: left;
                height: 1.3em;
                background-color: #43b6df;
                -moz-border-radius-topleft: 5px;
                -moz-border-radius-bottomleft: 5px;
                -webkit-border-top-left-radius: 5px;
                -webkit-border-bottom-left-radius: 5px;
            }
            .pb_after {
                float: left;
                background-color: #FEFEFE;
                -moz-border-radius-topright: 5px;
                -moz-border-radius-bottomright: 5px;
                -webkit-border-top-right-radius: 5px;
                -webkit-border-bottom-right-radius: 5px;
            }
            .pb_text {
                padding-top: 0.1em;
                position: absolute;
                left: 48%;
            }
        </style>'."\r\n";
        return $content;
    }

    function setProgressBarProgress($percentDone, $text = '') {
        $this->percentDone = $percentDone;
        $text = $text ? $text : number_format($this->percentDone, $this->decimals, '.', '').'%';
        print('
        <script type="text/javascript">
        if (document.getElementById("'.$this->pbarid.'")) {
            document.getElementById("'.$this->pbarid.'").style.width = "'.$percentDone.'%";');
        if ($percentDone == 100) {
            print('document.getElementById("'.$this->pbid.'").style.display = "none";');
        } else {
            print('document.getElementById("'.$this->tbarid.'").style.width = "'.(100-$percentDone).'%";');
        }
        if ($text) {
            print('document.getElementById("'.$this->textid.'").innerHTML = "'.htmlspecialchars($text).'";');
        }
        print('}</script>'."\n");
        $this->flush();
    }

    function flush() {
        print str_pad('', intval(ini_get('output_buffering')))."\n";
        //ob_end_flush();
        flush();
    }

}

echo 'Starting&hellip;<br />';

$p = new ProgressBar();
echo '<div style="width: 300px;">';
$p->render();
echo '</div>';
for ($i = 0; $i < ($size = 100); $i++) {
    $p->setProgressBarProgress($i*100/$size);
    usleep(1000000*0.1);
}
$p->setProgressBarProgress(100);

echo 'Done.<br />';

?>

setProgressBarProgress while, !!! !