Article Introduction：I made a very simple example to determine whether the IE browser version is too low. Note that you can only see its prompt effect when the IE6 and IE7 versions are low. Friends who need it can save it.

2016-05-16 comment 0  963

Article Introduction： useragent太容易改了！用什么方式判断浏览器版本安全？？useragent太容易改了！用什么方式判断浏览器版本安全？？------解决方案--------------------浏览器每个版本都在不停的升级，至于安全标志，都没个完善说明，哪个版本的浏览器是安全的。------解决方案--------------------安全？这个跟安全扯不上关系

2016-06-13 comment 0  1031

Article Introduction：There are generally two ways for JavaScript to determine the browser type. One is based on the unique attributes of various browsers, and the other is determined by analyzing the userAgent attribute of the browser.

2016-05-16 comment 0  1318

Article Introduction：js and php determine whether the current browser is WeChat? , jsphp. js and php determine whether the current browser is WeChat? , jsphp

2016-07-12 comment 0  991

Article Introduction：linux下php必须编译安装吗？yum里的都版本太低呀

2016-06-23 comment 0  963

Article Introduction：This time I will bring you jquery to determine whether the element content exists. What are the precautions for jquery to determine whether the element content exists? The following is a practical case, let's take a look.

2018-05-14 comment 0  2255

Article Introduction：jQuery determines that all images have been loaded

2016-06-24 comment 0  1227

Article Introduction：JS determines whether the browser supports a certain CSS3 property

2016-06-24 comment 0  1279

Article Introduction：PHP determines whether the user's browser has the Alexa toolbar program installed. This article introduces PHP to determine whether the user's browser has the Alexa toolbar program installed. The principle is very simple. We only need to obtain and identify the characters of the user's User-Agent, and then judge to know the user.

2016-07-13 comment 0  905

Article Introduction：php, browser: PHP determines whether the visitor is accessing via a mobile browser: This article was originally written by Xiaofeng from MaNong.com. Please read the reprint requirements at the end of the article for reprinting. Welcome to participate in our paid contribution plan! Today I want to share with you a piece of PHP code. The function of the code is to determine whether the visitor accesses PHP through a mobile browser. The idea of ​​​​implementing this function is to determine whether the visitor accesses PHP through a mobile browser through HTTP_X_WAP_PROFILE, HTTP_VIA, HTTP_USER_AGENT and other information. website. The following is the PHP code: /*** Whether to access the mobile terminal** @return bool*

2016-07-29 comment 0  934

Article Introduction：How jquery determines whether a certain tag ID exists: Use the length attribute of the jQuery object to determine if [>0] exists, the code is [if($("#id")[0]){} else {}] .

2020-11-26 comment 0  3621

Article Introduction：导入thinkPHP为什么会出现这些错误，是我的easyeclipse 版本太低吗

2016-06-23 comment 0  1068

Article Introduction：QQ responded by reading browser history: Is the data used to determine whether the login is malicious? On January 17, a forum article stated that QQ would read the history of web browsers, and the content was later linked to Zhihu questions. Tencent QQ responded to this question on its official Zhihu account saying that recently we have received external feedback that PCQQ scanned and read the browser's history. Our QQ security team takes this very seriously and immediately launched an investigation. After investigation, we found that PCQQ does read browser history, but this is to determine the security risk of user login. These read data are only used for judgment in PCQQ's local client to identify whether there is a malicious login. It is worth emphasizing that all relevant data

2024-02-01 comment 0  990

Article Introduction：Nowadays, more and more websites are beginning to use AJAX and Fetch API for data interaction, among which Form Data is also widely used. However, in order to make the code more compatible, we need to judge the browser support. This article will discuss how to use jQuery to determine whether FormData is supported. 1. What is FormData? FormData is a JavaScript object used to process and send data to the server in the form of key/value pairs. pass

2023-04-17 comment 0  765

Article Introduction：How jquery determines whether an object exists: Use the length attribute to determine whether the number of elements in the object is greater than 0. If it is greater than 0, the object exists, otherwise it does not exist; syntax "if ($(selector).length > 0) {//Exists }else {//Does not exist}".

2020-11-19 comment 0  2101

Article Introduction：How jquery determines whether a dom node exists: 1. Add the exists method to the jquery prototype; 2. In the exists method, determine whether the length attribute of the current object is greater than 0, and if it is greater, it exists; 3. Through [$('#id' ).exist()] just call it.

2020-11-18 comment 0  2612

Article Introduction：How does jquery determine that the scroll bar has scrolled to the bottom of the page and execute an event? The editor below will bring you a jquery method to determine whether the scroll bar has scrolled to the bottom of the page and execute the event method. I hope it will be helpful to everyone. Let’s follow the editor and take a look.

2016-05-16 comment 0  1447

Article Introduction：How jquery determines whether hasAttr exists for an attribute: Use [if(typeof($("#aid").attr("rel"))=="undefined")] to determine whether there is an attribute [$( "#aid").attr("rel")] will return the value of rel.

2020-12-04 comment 0  2359

Article Introduction： PHP能判断来源页是某种跳转过来的吗比如我的来源页跳转到目标页如(window.loaction.href="http://www.xx.com/xx.php")那么问题来了 http://www.xx.com/xx.php这个页面是否知道来源页是经过js的跳转过来的呢?更直接一点我就想知道php是否能判断来源页是手工点击进来还是程序自动跳转的

2016-06-13 comment 0  1461

Article Introduction：How jquery determines whether it is an array: Use the [$.isArray()] function, which can determine whether the specified parameter is an array. The syntax format is [$.isArray(object)]; if the specified parameter object is an array, it returns true , otherwise return false.

2020-11-24 comment 0  2488