记住用户名密码
<?php set_time_limit(0); //设置程序执行时间 ignore_user_abort(true); //设置断开连接继续执行 header('X-Accel-Buffering: no'); //关闭buffer header('Content-type: text/html;charset=utf-8'); //设置网页编码 ob_start(); //打开输出缓冲控制 echo str_repeat(' ',1024*4); //字符填充 $width = 1000; $html = '<div style="margin:100px auto; padding: 8px; border: 1px solid gray; background: #EAEAEA; width: %upx"> <div style="padding: 0; background-color: white; border: 1px solid navy; width: %upx"> <div id="progress" style="padding: 0; background-color: #FFCC66; border: 0; width: 0px; text-align: center; height: 16px"></div></div> <div id="msg" style="font-family: Tahoma; font-size: 9pt;">正在处理...</div> <div id="percent" style="position: relative; top: -34px; text-align: center; font-weight: bold; font-size: 8pt">0%%</div></div>'; echo sprintf($html, $width+8, $width); echo ob_get_clean(); //获取当前缓冲区内容并清除当前的输出缓冲 flush(); //刷新缓冲区的内容,输出 $length = 11; for($i=0; $i<$length; $i++) { sleep(rand(1,2)); $proportion = ($i+1)/$length; if($i+1 == $length){ $msg = '同步完成'; }else{ $msg = '正在同步第' . ($i+1) . '个用户'; } $script = '<script>document.getElementById("percent").innerText="%u%%";'; $script. = 'document.getElementById("progress").style.width="%upx";document.getElementById("msg").innerText="%s";</script>'; echo sprintf($script, intval($proportion*100), intval(($i+1)/$length)*$width, $msg); echo ob_get_clean(); //获取当前缓冲区内容并清除当前的输出缓冲 flush(); //刷新缓冲区的内容,输出 }
注:该进度条样式是从网上找的,稍微修改了下,你可以替换成自己想要的样式
“ajax方式”则稍微麻烦点,该方法的逻辑是利用ajax先去请求(最好是异步请求)”逻辑处理”的地址,逻辑处理过程中利用session或者其他存储介质(比如memcache,redis等)保存处理进度,在用ajax去请求(最好是同步请求)另一个查询进度的地址,实现实时反馈
下面贴出代码:
首先是html文件
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <script type="text/javascript" src="./jquery-1.10.2.min.js"></script> <title>同步</title> </head> <body> <input type="button" name="syn" id="syn" value="同步" /> <div id="progressBar" style="margin: 50px auto; padding: 8px; border: 1px solid gray; background: #EAEAEA; width: 1008px;display:none"> <div style="padding: 0; background-color: white; border: 1px solid navy; width: 1000px"> <div id="progress" style="padding: 0; background-color: #FFCC66; border: 0; width: 0px; text-align: center; height: 16px"></div> </div> <div id="msg">正在处理...</div> <div id="percent" style="position: relative; top: -18px; text-align: center; font-weight: bold; font-size: 8pt">0%</div> </div> </body> <script> function query(timestamp){ $.ajax({ type:'post', url:'/test1.php', //查询进度 data:{ timestamp:timestamp}, dataType: "json", async:false, success: function(data){ if(data.code=='10000'){ data1 = data.data; document.getElementById("percent").innerText= data1.percent + "%"; document.getElementById("progress").style.width=data1.progress + "px"; document.getElementById("msg").innerText=data1.msg; if(data1.percent == 100){ $("#syn").attr('disabled', false); return ; } }else{ document.getElementById("msg").innerText=data.msg; } setTimeout('query(' + timestamp + ')', 1000); } }); } $("#syn").click(function(){ var timestamp = Date.parse(new Date()); $("#syn").attr('disabled', 'disabled'); $("#progressBar").css('display', 'block'); $.ajax({ type:'post', url:'/test.php', //执行处理 data:{ timestamp:timestamp}, dataType: "json", async:true, success: function(data){ if(data.code=='10000'){ console.log('同步成功'); //data1 = data.data; //document.getElementById("percent").innerText= data1.percent + "%"; //document.getElementById("progress").style.width=data1.progress + "px"; //document.getElementById("msg").innerText=data1.msg; }else{ document.getElementById("msg").innerText=data1.msg; } } }); setTimeout('query(' + timestamp + ')', 1000); }); </script> </html>
test.php <?php set_time_limit(0); //设置程序执行时间 ignore_user_abort(true); //设置断开连接继续执行 $timestamp = $_POST['timestamp']; //省略一切校验 $width = 1000; $length = 11; for($i=0; $i<$length; $i++) { sleep(rand(1,2)); //模拟处理时间 $proportion = ($i+1)/$length; if($i+1 == $length){ $msg = '同步完成'; }else{ $msg = '正在同步第' . ($i+1) . '个用户'; } $data = array( 'percent' => intval($proportion*100), 'progress' => intval($width*($i+1)/$length), 'msg' => $msg ); session_start(); $_SESSION['now_percent' . $timestamp] = $data; session_write_close(); //释放session锁 } echo json_encode(array( 'code' => 10000, 'data' => $data ));
test1.php <?php //忽略所有校验,直接写主要部分 $timestamp = $_POST['timestamp']; //省略一切校验 session_start(); $now_percent = @$_SESSION['now_percent' . $timestamp]; session_write_close(); if(empty($now_percent)){ echo json_encode(array( 'code' => 10001, 'msg' => '正在处理...' ));exit; }else{ echo json_encode(array( 'code' => 10000, 'data' => $now_percent ));exit; }
注:1、之所以未用setinterval定时去查而用setTimeout是因为如果设置的时间过短,而请求响应时间过长就会出现显示混乱
2、使用session后要注意及时释放,不然查询时会因为session被锁而一直等待,使用完就释放是最好的
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