《PHP編程：php實(shí)現(xiàn)簡單的上傳進(jìn)度條》要點(diǎn)：
本文介紹了PHP編程：php實(shí)現(xiàn)簡單的上傳進(jìn)度條，希望對(duì)您有用。如果有疑問，可以聯(lián)系我們。
PHP實(shí)例Web上傳文件的三種解決方案分享給大家：
PHP實(shí)例
PHP實(shí)例這里我要使用的是form法.通過為表單元素設(shè)置enctype=”multipart/form-data”屬性,讓表單提交的數(shù)據(jù)以二進(jìn)制編碼的方式提交,在接收此哀求的Servlet中用二進(jìn)制流來獲取內(nèi)容,就可以取得上傳文件的內(nèi)容,從而實(shí)現(xiàn)文件的上傳.
PHP實(shí)例表單元素的enctype屬性指定的是表單數(shù)據(jù)的編碼方式,該屬性有3個(gè)值：
PHP實(shí)例?
PHP實(shí)例在網(wǎng)上找到了兩種方式,PHP配合apc實(shí)現(xiàn)和利用uploadprogress實(shí)現(xiàn),這次我要使用的是uploadprogress,點(diǎn)擊地址可以下載到php相應(yīng)版本的dll.安裝php_uploadprogress.dll擴(kuò)展,重啟apache.
PHP實(shí)例
PHP實(shí)例進(jìn)度條實(shí)現(xiàn)原理：
PHP實(shí)例
PHP實(shí)例這里用到了一個(gè)iframe無刷新上傳文件的方法.
PHP實(shí)例
PHP實(shí)例上傳完成后的樣子如圖：
PHP實(shí)例
<body>
<div style="padding:20px">
<form action="action.php" enctype="multipart/form-data" method="post" target="iframeUpload">
<iframe name="iframeUpload" width="400" height="400" frameborder='1'></iframe>
<input type="hidden" name="UPLOAD_IDENTIFIER" value="1" />
<input id="file1" name="file1" type="file"/>
<input value="上傳" type="submit" onclick="startProgress()"/>
</form>
</div>
<div style="width: 500px; height: 20px;border:1px solid red">
<div style="position: relative; height: 20px; background-color: purple; width: 0%;" class="barinner"></div>
</div>
<div id='showNum'></div>
<div class="prbar">
<div class="prpos barinner"></div>
</div>
</body>
PHP實(shí)例上面的HTML代碼中要注意下UPLOAD_IDENTIFIER,這個(gè)是用來定位查看哪個(gè)文件的上傳進(jìn)度的.我這里就寫死為一個(gè)1,大家可以寫成一個(gè)php生成的隨機(jī)數(shù).下面是JS腳本：
PHP實(shí)例
var proNum=0;
var loop=0;
var progressResult = "";
var interval;
function sendURL() {
$.ajax({
type : 'GET',
url : "getprogress.php",
async : true,
cache : false,
dataType : 'json',
data: "progress_key=" + $('input[name=UPLOAD_IDENTIFIER]').val(),
success : function(e) {
proNum=parseInt(e);
if(e){
$('.barinner').css('width', proNum+"%");
$('#showNum').html(proNum+"%");
setTimeout("getProgress()", 200);
}else{
if(interval == 1){
$('.barinner').css('width', "100%");
$('#showNum').html("100%");
}
}
}
});
}
function getProgress(){
loop++;
sendURL();
}
function startProgress(){
interval = 1;
$('.barinner').css('width', proNum+"%");
$('#showNum').html(proNum+"%");
setTimeout("getProgress()", 500);
}
PHP實(shí)例下面是getprogress.php文件中的內(nèi)容：
PHP實(shí)例
<?php
if (function_exists("uploadprogress_get_info")) {
$info = uploadprogress_get_info($_GET['progress_key']);
if(!empty($info)){
if(($info['bytes_uploaded'] < $info['bytes_total']) && !empty($info['bytes_uploaded']) && !empty($info['bytes_total'])){
$proNum = floor(($info['bytes_uploaded']/$info['bytes_total'])*100);
}else{
$proNum = 100;
}
echo $proNum;
}else{
echo 0;
}
}
PHP實(shí)例在上傳完成后,我展示了兩種進(jìn)度條的CSS,第二種是用最新的CSS3寫的.用到了一些CSS3的動(dòng)畫屬性.
PHP實(shí)例
PHP實(shí)例
.prbar {
margin:5px;
width:500px;
background-color:#dddddd;
overflow:hidden;
/* 邊框效果 */
border: 1px solid #bbbbbb;
-moz-border-radius: 15px;
border-radius: 15px;
/* 為進(jìn)度條增加暗影效果 */
-webkit-box-shadow: 0px 2px 4px #555555;
-moz-box-shadow: 0px 2px 4px #555555;
box-shadow: 0px 2px 4px #555555;
}
/* No rounded corners for Opera, because the overflow:hidden dont work with rounded corners */
doesnotexist:-o-prefocus, .prbar {
border-radius:0px;
}
.prpos {
width:0%;
height:30px;
background-color:#3399ff;
border-right:1px solid #bbbbbb;
/* CSS3 進(jìn)度條漸變 */
transition: width 2s ease;
-webkit-transition: width 0s ease;
-o-transition: width 0s ease;
-moz-transition: width 0s ease;
-ms-transition: width 0s ease;
/* CSS3 Stripes */
background-image: linear-gradient(135deg,#3399ff 25%,#99ccff 25%,#99ccff 50%, #3399ff 50%, #3399ff 75%,#99ccff 75%,#99ccff 100%);
background-image: -moz-linear-gradient(135deg,#3399ff 25%,#99ccff 25%,#99ccff 50%, #3399ff 50%, #3399ff 75%,#99ccff 75%,#99ccff 100%);
background-image: -ms-linear-gradient(135deg,#3399ff 25%,#99ccff 25%,#99ccff 50%, #3399ff 50%, #3399ff 75%,#99ccff 75%,#99ccff 100%);
background-image: -o-linear-gradient(135deg,#3399ff 25%,#99ccff 25%,#99ccff 50%, #3399ff 50%, #3399ff 75%,#99ccff 75%,#99ccff 100%);
background-image: -webkit-gradient(linear, 100% 100%, 0 0,color-stop(.25, #99ccff), color-stop(.25, #3399ff),color-stop(.5, #3399ff),color-stop(.5, #99ccff),color-stop(.75, #99ccff),color-stop(.75, #3399ff),color-stop(1, #3399ff));
background-image: -webkit-linear-gradient(135deg,#3399ff 25%,#99ccff 25%,#99ccff 50%, #3399ff 50%, #3399ff 75%,#99ccff 75%,#99ccff 100%);
background-size: 40px 40px;
/* Background stripes animation */
animation: bganim 3s linear 2s infinite;
-moz-animation: bganim 3s linear 2s infinite;
-webkit-animation: bganim 3s linear 2s infinite;
-o-animation: bganim 3s linear 2s infinite;
-ms-animation: bganim 3s linear 2s infinite;
}
@keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-moz-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-webkit-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-o-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-ms-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
PHP實(shí)例以上就是本文的全部內(nèi)容,希望對(duì)大家的學(xué)習(xí)有所幫助.
《PHP編程：php實(shí)現(xiàn)簡單的上傳進(jìn)度條》是否對(duì)您有啟發(fā)，歡迎查看更多與《PHP編程：php實(shí)現(xiàn)簡單的上傳進(jìn)度條》相關(guān)教程，學(xué)精學(xué)透。維易PHP學(xué)院為您提供精彩教程。
轉(zhuǎn)載請(qǐng)注明本頁網(wǎng)址：
http://www.fzlkiss.com/jiaocheng/8386.html
