


jquery php implements the method of exporting datatables plug-in data to excel, jquerydatatables
This article describes the example of jquery php implementing the method of exporting datatables plug-in data to excel. Share it with everyone for your reference. The details are as follows:
DataTables is a jQuery table plug-in. This is a highly flexible tool based on progressive enhancements that will add advanced interactive controls and support for any HTML form. Main features:
1. Automatic paging
2. Instant table data filtering
3. Data sorting and automatic detection of data types
4. Automatically handle column width
5. Styles can be customized through CSS
6. Support hidden columns
7. Easy to use
8. Scalability and flexibility
9. Internationalization
10. Dynamically create tables
11. Free
Plug-in address http://www.datatables.net/
However, it is a pity that the official website table data export method uses the tabletools plug-in, which uses flash to export data, and does not support Chinese data. By searching the official API and information, I found the method of exporting data using jquery and php.
Javascript function to export data
function table2csv(oTable, exportmode, tableElm) { var csv = ''; var headers = []; var rows = []; // Get header names $(tableElm+' thead').find('th').each(function() { var $th = $(this); var text = $th.text(); var header = '"' + text + '"'; // headers.push(header); // original code if(text != "") headers.push(header); // actually datatables seems to copy my original headers so there ist an amount of TH cells which are empty }); csv += headers.join(',') + "\n"; // get table data if (exportmode == "full") { // total data var total = oTable.fnSettings().fnRecordsTotal() for(i = 0; i < total; i++) { var row = oTable.fnGetData(i); row = strip_tags(row); rows.push(row); } } else { // visible rows only $(tableElm+' tbody tr:visible').each(function(index) { var row = oTable.fnGetData(this); row = strip_tags(row); rows.push(row); }) } csv += rows.join("\n"); // if a csv div is already open, delete it if($('.csv-data').length) $('.csv-data').remove(); // open a div with a download link $('body').append('<div class="csv-data"><form enctype="multipart/form-data" method="post" action="/csv.php"><textarea class="form" name="csv">'+csv+'</textarea><input type="submit" class="submit" value="Download as file" /></form></div>'); } function strip_tags(html) { var tmp = document.createElement("div"); tmp.innerHTML = html; return tmp.textContent||tmp.innerText; }
The function supports exporting all data and current page data
// export only what is visible right now (filters & paginationapplied) $('#export_visible').click(function(event) { var oTable; oTable= $('#spdata').dataTable(); event.preventDefault(); table2csv(oTable, 'visible', '#spdata'); }) // export all table data $('#export_all').click(function(event) { var oTable; oTable= $('#spdata').dataTable(); event.preventDefault(); table2csv(oTable, 'full', '#spdata'); })
Where #spdata is the id of the table
Backend php export excel code
header("Content-Type: application/vnd.ms-execl"); header("Content-Disposition: attachment; filename=myExcel.csv"); header("Pragma: no-cache"); header("Expires: 0"); $buffer = $_POST['csv']; $buffer=str_replace(",",",\t",$buffer); $buffer=mb_convert_encoding($buffer,"GB2312","UTF-8"); echo $buffer;
I hope this article will be helpful to everyone’s PHP programming design.

实现方法:1、用“$("img").delay(毫秒数).fadeOut()”语句,delay()设置延迟秒数;2、用“setTimeout(function(){ $("img").hide(); },毫秒值);”语句,通过定时器来延迟。

区别:1、axios是一个异步请求框架,用于封装底层的XMLHttpRequest,而jquery是一个JavaScript库,只是顺便封装了dom操作;2、axios是基于承诺对象的,可以用承诺对象中的方法,而jquery不基于承诺对象。

修改方法:1、用css()设置新样式,语法“$(元素).css("min-height","新值")”;2、用attr(),通过设置style属性来添加新样式,语法“$(元素).attr("style","min-height:新值")”。

增加元素的方法:1、用append(),语法“$("body").append(新元素)”,可向body内部的末尾处增加元素;2、用prepend(),语法“$("body").prepend(新元素)”,可向body内部的开始处增加元素。

删除方法:1、用empty(),语法“$("div").empty();”,可删除所有子节点和内容;2、用children()和remove(),语法“$("div").children().remove();”,只删除子元素,不删除内容。

在jquery中,apply()方法用于改变this指向,使用另一个对象替换当前对象,是应用某一对象的一个方法,语法为“apply(thisobj,[argarray])”;参数argarray表示的是以数组的形式进行传递。

去掉方法:1、用“$(selector).removeAttr("readonly")”语句删除readonly属性;2、用“$(selector).attr("readonly",false)”将readonly属性的值设置为false。

on()方法有4个参数:1、第一个参数不可省略,规定要从被选元素添加的一个或多个事件或命名空间;2、第二个参数可省略,规定元素的事件处理程序;3、第三个参数可省略,规定传递到函数的额外数据;4、第四个参数可省略,规定当事件发生时运行的函数。


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