The example of this article describes the dynamic display server running program progress bar function implemented by php+javascript. Share for your reference, the details are as follows:
There are often such services to be processed, and there are many services to be processed on the server, which need to be processed in batches, so a progress bar is needed to prompt the client to complete the progress now.
This is the progress bar of php+javascript.
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<?php
//set_time_limit(0); //注意，如果是安全模式，请不要打开，如果不是安全模式，这个选项可以打开
for
(
$i
= 0;
$i
< 500;
$i
++) {
$users
[] =
'Tom_'
.
$i
;
}
//end for
$width
= 500;
//显示的进度条长度，单位 px
$total
=
count
(
$users
);
//总共需要操作的记录数
$pix
=
$width
/
$total
;
//每条记录的操作所占的进度条单位长度
$progress
= 0;
//当前进度条长度
?>
<!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/transitional.dtd"
>
<html>
<head>
<title>动态显示服务器运行程序的进度条</title>
<meta http-equiv=
"Content-Type"
content=
"text/html; charset=utf-8"
/>
<style>
body, div input { font-family: Tahoma; font-size: 9pt }
</style>
<script language=
"JavaScript"
>
<!--
function
updateProgress(sMsg, iWidth)
{
document.getElementById(
"status"
).innerHTML = sMsg;
document.getElementById(
"progress"
).style.width = iWidth +
"px"
;
document.getElementById(
"percent"
).innerHTML = parseInt(iWidth / <?php
echo
$width
; ?> * 100) +
"%"
;
}
//-->
</script>
</head>
<body>
<div style=
"margin: 4px; padding: 8px; border: 1px solid gray; background: #EAEAEA; width: <?php echo $width+8; ?>px"
>
<div><font color=
"gray"
>如下进度条的动态效果由服务器端 PHP 程序结合客户端 JavaScript 程序生成。</font></div>
<div style=
"padding: 0; border: 1px solid navy; width: <?php echo $width; ?>px"
>
<div id=
"progress"
style=
"padding: 0; border: 0; width: 0px; text-align: center; height: 16px"
></div>
</div>
<div id=
"status"
> </div>
<div id=
"percent"
style=
"position: relative; top: -30px; text-align: center; font-weight: bold; font-size: 8pt"
>0%</div>
</div>
<?php
flush
();
//将输出发送给客户端浏览器
foreach
(
$users
as
$user
) {
// 在此处使用空循环模拟较为耗时的操作，实际应用中需将其替换；
// 如果你的操作不耗时，我想你就没必要使用这个脚本了 :)
// 请在这里处理你的业务
for
(
$i
= 0;
$i
< 1000000;
$i
++) {
;;
}
?>
<script language=
"JavaScript"
>
updateProgress(
"正在操作用户“<?php echo $user; ?>” ...."
, <?php
echo
min(
$width
,
intval
(
$progress
)); ?>);
</script>
<?php
flush
();
//将输出发送给客户端浏览器，使其可以立即执行服务器端输出的 JavaScript 程序。
$progress
+=
$pix
;
}
//end foreach
// 最后将进度条设置成最大值 $width，同时显示操作完成
?>
<script language=
"JavaScript"
>
updateProgress(
"操作完成！"
, <?php
echo
$width
; ?>);
</script>
<?php
flush
();
?>
</body>
</html>
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The operation effect is as follows:
