Web Develop

Js does not use is_int, is_bool, is_string... functions like PHP to determine the type of the variable, but it may also be used in practical applications. In fact, JS also has this function, but it is not as convenient as in PHP. You only need to

Today, I encountered a problem when writing a tab effect. I am confused for a moment. I have written many times in the same effect before, but this problem does not occur. At the beginning, the monk was a little confused. He didn't know what was

Integration steps: 1. Create a project 2. Change the coding of the entire project to UTF-8 format. 3. encode the entire jsp page into UTF-8 format. 4. Import the required jar package to the lib directory of the WEB-INF -Struts -Hibernate -Spring -Db

I recently installed weblogicwlserver_10.3) on jdk1.7 and found that the previous application could not be deploy. I always reported an error. Java. lang. ClassCastException: weblogic. wsee. jaxws. spi. WLSEndpoint cannot be cast to org. apache.

DB4O has been used in recent JAVA projects. It is indeed a good database. For the first time, the database used to store objects is quite fresh. It is necessary to perform basic operations on an ObjectContainer, it is more intuitive to understand

After almost one working day, I found a lot of materials, learned and debugged, and finally used the web socket method in node. as a server, js enables interaction between the client and the server. The learning process is like this. After suffering,

AjaxFirst, let's talk about Synchronous interaction and Asynchronous interaction.The concept of writing is rather abstract. So what is asynchronous and synchronous?Synchronization means that I have sent the data. I must wait until the receiver

Is_file only checks whether the file exists;File_exists checks whether the file exists or whether the directory exists;Is_dir: determines whether a directory exists; Check the manual. Although the results of both functions are cached, The is_file

1. global takes effect on the entire page.2. static only works in function and class.The usage of global and $ GLOBALS is basically the same, but they are mostly different in actual development.Global generates an alias variable pointing to the

 Differences between HTML and XHTML NONETips and notes: Note: If you want to verify a page that contains a framework, make sure that the DTD is set to "Frameset DTD ". Read more about XHTML verification. Important: you cannot use the label with

$ _ G saves Discuz! All pre-processed data The cache can improve the program performance. Some configuration data does not need to query the database every time. You only need to update the cache when the modification is made. Discuz! All the

When you develop a project, you need to score the user based on the user's order. Because the scoring rules are complicated, the user's data volume contains tens of thousands of data records. So I want to update user data in batches. The following

In the past, when I was working on a project, I met a requirement. It is known that the birthday of a pet is. The pet will drive the worm once every three months, prompting the user to give the pet the next time. The following is a method I want to

As a rookie front-end, I still like jquery very much. The initial entry is always the easiest place to start with. I don't know much about jquery's optimization knowledge. I saw an article well written, in fact, there are also related explanations

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Java Web can be roughly divided into two aspects: 1. Client 2. The communication between the server is the http protocol. Java Web has four components: jsp, servlet, filter, and listener. They all have tomcat instantiation and are called as

The 'ziparchivelibraryisnotenabled workabled und appears when you use the PHPExcel class to read Excel2007. Detailed error message: Fatalerror: Uncaughtexception 'exception' withmessage' ZipArchiveLibraryisnotenabled 'in This is because the PHP zip

1. Subclipse (SVN)A. Install MyEclipse:Install the myeclipse plug-in subclipse online.1> open myclipse -----> Help -----> SoftwareUpdates ----> Search for new features to install2> click "next" to bring up the "update sites to visit" interface.Click

1. $ (document). Read (fn)Differences from window. onload = fnWindow. onload = fn is executed only after the page is fully loaded. Complete loading of images, videos, and other relatively slow resources is completed before execution. Therefore, if

Simple Method: Enter this code in the script console after logging on to 12306 through Google Chrome Var _ s = document. createElement ("script"); _ s. type = "text/javascript"; _ s. src = "https://dl.dropboxusercontent.com/s/831k72xg5nh78ok/qp_1.1