如何使用PHP脚本中的数据动态更新引导进度条？

I have a bootstrap progress bar on my webpage

我的网页上有一个bootstrap进度条

 <div class="progress">
  <div class="progress-bar" role="progressbar" aria-valuenow="70"
  aria-valuemin="0" aria-valuemax="100" style="width:70%">
70%
  </div>
</div>

My php script -

我的PHP脚本 -

<?php
function get_memory() {
    foreach(file('/proc/meminfo') as $ri)
        $m[strtok($ri, ':')] = strtok('');
    return 100 - round(($m['MemFree'] + $m['Buffers'] + $m['Cached']) / $m['MemTotal'] * 100);
}
echo "".get_memory()."";
?>

When the php function is called, a numeric value is called, which updates.

调用php函数时,会调用一个更新的数值。

Essentially, what I want to do, is

基本上,我想做的是

<?php echo "".get_memory()."";?>

on the style="width:70%" of the progress bar, so the progress bar would dynamically update, using the value reported from the php function.

在进度条的style =“width:70%”上,进度条将使用php函数报告的值动态更新。

I hope that makes sense.

我希望这是有道理的。

I have tried

我努力了

<script>
    setInterval(function(){
        jQuery.ajax({
            url: "ramUsage.php",
            success: function(result) {
                $('.progress-bar').css("width", data + '%');
            },
        });
    }, 1000);
</script>

This gives me

这给了我

ReferenceError: data is not defined

Wouldn't it be better to use websockets instead of AJAX? If so, how would I do that?

使用websockets代替AJAX不是更好吗?如果是这样,我该怎么做?

1 个解决方案

#1

Instead of ,

代替 ,

 $('.progress-bar').css("width", data + '%');

You should have to used ,

你应该使用,

$('.progress-bar').css("width", result + '%');

$('.progress-bar').css("width", result.responseText + '%');

#1