JavaScript图片延迟加载微型库Echo.js
Echo.js是一个标准的独立的Javascript图片懒加载（延迟加载）库，它非常小巧快速，只有2KB，它使用HTML5的 data-*属性，延迟请求加载图片资源，不依赖任意第三方插件库，特别适用于移动端需要加载大量图片的应用。
织梦dedecms判断手机进行跳转
推荐：
uaredirect.js
function uaredirect(f){try{if(document.getElementById("bdmark")!=null){return}var b=false;if(arguments[1]){var e=window.location.host;var a=window.location.href;if(isSubdomain(arguments[1],e)==1){f=f+"/#m/"+a;b=true}else{if(isSubdomain(arguments[1],e)==2){f=f+"/#m/"+a;b=true}else{f=a;b=false}}}else{b=true}if(b){var c=window.location.hash;if(!c.match("fromapp")){if((navigator.userAgent.match(/(iPhone|iPod|Android|ios)/i))){location.replace(f)}}}}catch(d){}}function isSubdomain(c,d){this.getdomain=function(f){var e=f.indexOf("://");if(e>0){var h=f.substr(e+3)}else{var h=f}var g=/^www\./;if(g.test(h)){h=h.substr(4)}return h};if(c==d){return 1}else{var c=this.getdomain(c);var b=this.getdomain(d);if(c==b){return 1}else{c=c.replace(".","\\.");var a=new RegExp("\\."+c+"$");if(b.match(a)){return 2}else{return 0}}}};
栏目页跳转：uaredirect("/m/list.php?tid={dede:field.id /}");
首页跳转：uaredirect("/m");
文章页跳转：uaredirect("/m/view.php?aid={dede:field.id /}");
index.php添加：
//判断手机登录
function ismobile() {
// 如果有HTTP_X_WAP_PROFILE则一定是移动设备
if (isset ($_SERVER['HTTP_X_WAP_PROFILE']))
return true;
//此条摘自TPM智能切换模板引擎，适合TPM开发
if(isset ($_SERVER['HTTP_CLIENT']) &&'PhoneClient'==$_SERVER['HTTP_CLIENT'])
return true;
//如果via信息含有wap则一定是移动设备,部分服务商会屏蔽该信息
if (isset ($_SERVER['HTTP_VIA']))
//找不到为flase,否则为true
return stristr($_SERVER['HTTP_VIA'], 'wap') ? true : false;
//判断手机发送的客户端标志,兼容性有待提高
if (isset ($_SERVER['HTTP_USER_AGENT'])) {
$clientkeywords = array(
'nokia','sony','ericsson','mot','samsung','htc','sgh','lg','sharp','sie-','philips','panasonic','alcatel','lenovo','iphone','ipod','blackberry','meizu','android','netfront','symbian','ucweb','windowsce','palm','operamini','operamobi','openwave','nexusone','cldc','midp','wap','mobile'
);
//从HTTP_USER_AGENT中查找手机浏览器的关键字
if (preg_match("/(" . implode('|', $clientkeywords) . ")/i", strtolower($_SERVER['HTTP_USER_AGENT']))) {
return true;
}
}
//协议法，因为有可能不准确，放到最后判断
if (isset ($_SERVER['HTTP_ACCEPT'])) {
// 如果只支持wml并且不支持html那一定是移动设备
// 如果支持wml和html但是wml在html之前则是移动设备
if ((strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') !== false) && (strpos($_SERVER['HTTP_ACCEPT'], 'text/html') === false || (strpos($_SERVER['HTTP_ACCEPT'], 'vnd.wap.wml') < strpos($_SERVER['HTTP_ACCEPT'], 'text/html')))) {
return true;
}
}
return false;
}
if (isMobile()){
header('Location:m/index.php');
}else{
//自动生成HTML版
if(isset($_GET['upcache']) || !file_exists('index.html'))
{
require_once (dirname(__FILE__) . "/include/common.inc.php");
require_once DEDEINC."/arc.partview.class.php";
$GLOBALS['_arclistEnv'] = 'index';
$row = $dsql->GetOne("Select * From `#@__homepageset`");
$row['templet'] = MfTemplet($row['templet']);
$pv = new PartView();
$pv->SetTemplet($cfg_basedir . $cfg_templets_dir . "/" . $row['templet']);
$row['showmod'] = isset($row['showmod'])? $row['showmod'] : 0;
if ($row['showmod'] == 1)
{
$pv->SaveToHtml(dirname(__FILE__).'/index.html');
include(dirname(__FILE__).'/index.html');
exit();
} else {
$pv->Display();
exit();
}
}
else
{
header('HTTP/1.1 301 Moved Permanently');
header('Location:index.html');
}
}
JS跳转：
function mobileRedirect(murl){
try {
if(document.getElementById("bdmark") != null){
return;
}
var urlhash = window.location.hash;
if (!urlhash.match("fromapp")){
if ((navigator.userAgent.match(/(iPhone|iPod|Android|ios|iPad|Symbia)/i))) {
location.replace(murl);
}
}
} catch(err){}
}
mobileRedirect("/m/");
在后台执行scp，实现服务器间无密码文件拷贝。
远程备份大容量时常会有这样的情形：从远程备份的文件很大，需要很长时间，想在退出ssh后程序依然能继续在后台下载，可以通过建立服务器间安全信息关系和nohup的方式解决。
html2canvas网页截图导出为图片并用JS下载
html2canvas是一个相当不错的JavaScript类库，它使用了html5和css3的一些新功能特性，实现了在客户端对网页进行截图的功 能。html2canvas通过获取页面的DOM和元素的样式信息，并将其渲染成canvas图片，从而实现给页面截图的功能。
它不需要来自服务器任何渲染，整张图片都是在客户端浏览器创建。当浏览器不支持Canvas时，将采用Flashcanvas或 ExplorerCanvas技术代替实现。以下浏览器能够很好的支持该脚本：Firefox 3.5+, Google Chrome, Opera新的版本, IE9以上的浏览器。
thinkphp控制页码显示个数量
$page->rollPage=xxx;
jquery禁用右键、文本选择功能、复制的代码
//禁用右键、文本选择功能、复制按键
$(document).bind("contextmenu",function(){return false;});
$(document).bind("selectstart",function(){return false;});
$(document).keydown(function(){return key(arguments[0])});
//按键时提示警告
function key(e){
var keynum;
if(window.event){
keynum = e.keyCode; // IE
}else if(e.which){
keynum = e.which; // Netscape/Firefox/Opera
}
if(keynum == 17){
alert(“禁止复制内容！”);
return false;
}
}
//禁用右键、文本选择功能、复制按键
$(document).bind("contextmenu",function(){return false;});
$(document).bind("selectstart",function(){return false;});
$(document).keydown(function(){return key(arguments[0])});
//按键时提示警告
function key(e){
var keynum;
if(window.event) // IE
{
keynum = e.keyCode;
}
else if(e.which) // Netscape/Firefox/Opera
{
keynum = e.which;
}
if(keynum == 17){ alert("禁止复制内容！");return false;}
}
<script>
//屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键
function document.oncontextmenu(){event.returnValue=false;}//屏蔽鼠标右键
function window.onhelp(){return false} //屏蔽F1帮助
function document.onkeydown(){
if((window.event.altKey)&&
((window.event.keyCode==37)|| //屏蔽Alt+方向键←
(window.event.keyCode==39))){ //屏蔽Alt+方向键→
alert("不准你使用ALT+方向键前进或后退网页！");
event.returnValue=false;
} if((event.keyCode==8)|| //屏蔽退格删除键
(event.keyCode==116)|| //屏蔽F5刷新键
(event.ctrlKey && event.keyCode==82)){ //Ctrl+R
event.keyCode=0;
event.returnValue=false;
}
if(event.keyCode==122){event.keyCode=0;event.returnValue=false;} //屏蔽F11
if(event.ctrlKey && event.keyCode==78)event.returnValue=false; //屏蔽Ctrl+n
if(event.shiftKey && event.keyCode==121)event.returnValue=false; //屏蔽shift+F10
if(window.event.srcElement.tagName=="A" && window.event.shiftKey)
window.event.returnValue=false; //屏蔽shift加鼠标左键新开一网页
if((window.event.altKey)&&(window.event.keyCode==115)){ //屏蔽Alt+F4
window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px");
return false;
}
}
</script>ThinkPHP3.2.3模板中使用自定义函数
function fix_pre($str, $fix='0', $len=2, $type=STR_PAD_LEFT){
$str = str_pad($str, $len, $fix, $type);
return $str;
}
{:fix_pre($seats['seats'], '0', 3)}
PHPExcel读取EXCEL中的图片并保存到本地
项目中需要读取php中图片保存到服务器同时将图片地址写入数据库，phpexcel示例代码如下：
<?php
ini_set("display_errors",1);
include 'PHPExcel.php';
include 'PHPExcel/IOFactory.php';
define('EXCEL_EXTENSION_2003', "xls");
define('EXCEL_EXTENSION_2007', "xlsx");
$fileName2003 = "file.xls";
$fileName2007 = "file.xlsx";
$fileName = $fileName2003;
//$fileName = $fileName2007;
if(getExtendFileName($fileName) == EXCEL_EXTENSION_2003)
{
$reader = PHPExcel_IOFactory::createReader('Excel5');
}
else if(getExtendFileName($fileName) == EXCEL_EXTENSION_2007)
{
$reader = new PHPExcel_Reader_Excel2007();
}
$PHPExcel = $reader->load($fileName);
$worksheet = $PHPExcel->getActiveSheet();
$imageInfo = extractImageFromWorksheet($worksheet,"savepath/");
print_r($imageInfo);
/**
* 检测文件类型
*
* @param <type> $file_name The file name
*
* @return <type> The extend file name.
*/
function getExtendFileName($file_name) {
$extend = pathinfo($file_name);
$extend = strtolower($extend["extension"]);
return $extend;
}
/**
* 获取图片
*
* @param <type> $worksheet The worksheet
* @param <type> $basePath The base path
*
* @return array ( description_of_the_return_value )
*/
function extractImageFromWorksheet($worksheet, $basePath){
$result = array();
$imageFileName = "";
foreach ($worksheet->getDrawingCollection() as $drawing) {
$xy=$drawing->getCoordinates();
$path = $basePath;
// for xlsx
if ($drawing instanceof PHPExcel_Worksheet_Drawing) {
$filename = $drawing->getPath();
$imageFileName = $drawing->getIndexedFilename();
$path = $path . $drawing->getIndexedFilename();
copy($filename, $path);
$result[$xy] = $path;
// for xls
} else if ($drawing instanceof PHPExcel_Worksheet_MemoryDrawing) {
$image = $drawing->getImageResource();
$renderingFunction = $drawing->getRenderingFunction();
switch ($renderingFunction) {
case PHPExcel_Worksheet_MemoryDrawing::RENDERING_JPEG:
$imageFileName = $drawing->getIndexedFilename();
$path = $path . $drawing->getIndexedFilename();
imagejpeg($image, $path);
break;
case PHPExcel_Worksheet_MemoryDrawing::RENDERING_GIF:
$imageFileName = $drawing->getIndexedFilename();
$path = $path . $drawing->getIndexedFilename();
imagegif($image, $path);
break;
case PHPExcel_Worksheet_MemoryDrawing::RENDERING_PNG:
$imageFileName = $drawing->getIndexedFilename();
$path = $path . $drawing->getIndexedFilename();
imagegif($image, $path);
break;
case PHPExcel_Worksheet_MemoryDrawing::RENDERING_DEFAULT:
$imageFileName = $drawing->getIndexedFilename();
$path = $path . $drawing->getIndexedFilename();
imagegif($image, $path);
break;
}
$result[$xy] = $imageFileName;
}
}
return $result;
}