来自dedecms的javascript+php进度条

时间：2010-04-22 来源：admin126com

最近研究大数据量分批操作，需要用到进度条。
之前写过一篇：http://blogguy.cn/show-350-1.html
但是这种做法实际上在服务器上没有分批次操作，他只是简单的flush和javascript更新，对服务器资源占用是持续的。
看到dedecms的进度条有点意思，顺便扒下来备用。

多的不说，缩减为一个文件，保存为.php后运行即可！

PHP代码

<?php
/**
* 进度条
*
*/
function ExecTime()
{
$time = explode(" ", microtime());
$usec = (double)$time[0];
$sec = (double)$time[1];
return $sec + $usec;
}
function ShowMsg($msg, $gourl, $onlymsg = 0, $limittime = 0) {
if (empty ( $GLOBALS ['cfg_phpurl'] )) {
$GLOBALS ['cfg_phpurl'] = '..';
}
$htmlhead = "<html><head><title>系统提示信息</title><meta http-equiv=\"Content-Type\" content=\"text/html; charset=gb2312\" />";
$htmlhead .= "<base target='_self'/><style>div{line-}</style></head><body leftmargin='0' topmargin='0'><center><script>";
$htmlfoot = "</script></center></body></html>";
if ($limittime == 0) {
$litime = 1000;
} else {
$litime = $limittime;
}
if ($gourl == "-1") {
if ($limittime == 0) {
$litime = 5000;
}
$gourl = "javascript:history.go(-1);";
}
if ($gourl == '' || $onlymsg == 1) {
$msg = "<script>alert(\"" . str_replace ( "\"", "“", $msg ) . "\");</script>";
} else {
$func = " var pgo=0;
function JumpUrl(){
if(pgo==0){ location='$gourl'; pgo=1; }
}";
$rmsg = $func;
$rmsg .= "document.write(\"<br /><div style='width:450px;padding:0px;border:1px solid #D1DDAA;'>";
$rmsg .= "<div style='padding:6px;font-size:12px;border-bottom:1px solid #D1DDAA;background:#DBEEBD url({$GLOBALS['cfg_phpurl']}/img/wbg.gif)';'><b>系统提示信息！</b></div>\");";
$rmsg .= "document.write(\"<div style='font-size:10pt;background:#ffffff'><br />\");";
$rmsg .= "document.write(\"" . str_replace ( "\"", "“", $msg ) . "\");";
$rmsg .= "document.write(\"";
if ($onlymsg == 0) {
if ($gourl != "javascript:;" && $gourl != "") {
$rmsg .= "<br /><a href='{$gourl}'>如果你的浏览器没反应，请点击这里...</a>";
}
$rmsg .= "<br/></div>\");";
if ($gourl != "javascript:;" && $gourl != '') {
$rmsg .= "setTimeout('JumpUrl()',$litime);";
}
} else {
$rmsg .= "<br/><br/></div>\");";
}
$msg = $htmlhead . $rmsg . $htmlfoot;
}
echo $msg;
}
$est1 = ExecTime();
foreach ($_GET as $k => $v) {
$$k=$v;
}
$startid = (empty($startid) ? 0 : $startid);//开始数量
$endid = (empty($endid) ? 0 : $endid);//结束数量
$pagesize = (empty($pagesize) ? 1 : $pagesize);//每次执行条数
$totalnum = (empty($totalnum) ? 0 : $totalnum);//总数量
$seltime = (empty($seltime) ? 0 : $seltime);
$stime = (empty($stime) ? '' : $stime );
$etime = (empty($etime) ? '' : $etime);
$sstime = (empty($sstime) ? 0 : $sstime);
$successnum = (empty($successnum) ? 0 : $successnum);//成功数量
//处理业务逻辑
if ($totalnum==0) $totalnum=100;
//空转1000000次爽吧？！！
for ($i = 0; $i < 1000000; $i++) {
//请在这里执行发送代码
}
$startid=$startid+$pagesize;
$successnum++;
if(empty($sstime)) {
$sstime = time();
}
$t2 = ExecTime();
$t2 = ($t2 - $est1);
$ttime = time() - $sstime;
$ttime = number_format(($ttime / 60),2);
//返回提示信息
$tjlen = $totalnum>0 ? ceil( ($startid/$totalnum) * 100 ) : 100;//当前进度
$dvlen = $tjlen * 4;
$tjsta = "<div style='width:400;border:1px solid #898989;text-align:left'><div style='width:$dvlen;background-color:#829D83'></div></div>";
$tjsta .= "<br/>本次用时：".number_format($t2,2)."，总用时：$ttime 分钟，总任务：".($totalnum).",到达位置：".($startid)."<br/>完成创建文件总数的：$tjlen %，继续执行任务...";
//$tjsta .= "<br/>";
//$tjsta .= "<br/>本次执行的任务表述";
if($startid < $totalnum)
{
$nurl = "?endid=$endid&startid=$startid";
$nurl .= "&totalnum=$totalnum&pagesize=$pagesize";
$nurl .= "&seltime=$seltime&sstime=$sstime&stime=".urlencode($stime)."&etime=".urlencode($etime)."&successnum=$successnum&mkvalue=$mkvalue";
ShowMsg($tjsta,$nurl,0,1000);
exit();
}
else
{
ShowMsg("完成所有任务！，生成发送：$successnum 总用时：{$ttime} 分钟。","javascript:;");
}
?>