Programmer Think

The SQLite3 extension is enabled by default in PHP 5.3.0+ or above.You can disable it at compile time using --without-sqlite3. Windows users can use this extension by enabling php_sqlite3.dll.Php_sqlite3.dll is included by default in PHP releases after PHP 5.3.0. For detailed installation instructions, see PHP Tutorial And its official website. ...

Chain List A linked list is a discontinuous and non-sequential storage structure on a physical storage unit. The logical order of data elements is realized by the order of pointer links in the linked list. A list consists of a series of nodes (each element in the list is called a node), which can be dynamically generated at run time. Each node ...

A Noun Interpretation of Kafka 1.topic Topic is equivalent to a queue in the MQ of a traditional messaging system. The message sent by the producer side must specify which topic to send to. In a large application system, different topics can be distinguished according to their functions (topic of order, topic of login, topic of amount, e ...

Ajax Foundation ajax: no refresh data read, read information on the server HTTP request method: GET: Used to get data, such as browsing posts ajax.judgeXmlHttpRequest('get', 'index.php', function(data){ alert(data); //This is the data returned by the server }) POST: Used to upload data, such as user registration var dataJson = { nam ...

Well, 6.1 is just over. We're not babies anymore. Come on, an interface article. In the process of programming, we should learn how to use interfaces to change our lives and greatly improve our self-ability.Interface is not a new feature, but it's very important. Here's a small example of interface. Imagine a class of DocumentStore that collect ...

Last article An Advanced DoS Attack-Hash Collision Attack I implemented a DoS attack on Java by forging Hash Collision data. Here's how to produce a large amount of attack data. HashTable is a very common data structure. It has fast access speed, simple structure and is deeply loved by programmers. The HashTable data structure is as follows: H ...

> This method was initially used in the absence of "Wechat Open Platform", but now many websites are using it. In short, it generates a temporary two-dimensional code and puts it on the server. Then it scans the two-dimensional code and passes the value to the server for comparison, so as to realize landing, which is similar to the ...

When it comes to the singleton model, I think the first thing you think about is the lazy, evil-looking style.As for registration (obsolete mode, negligible). The singleton pattern has the following characteristics:1. A singleton class can only have one instance.2. A singleton class must create its own unique instance.3. The singleton class mu ...

Because of its small size, fast speed and low overall cost of ownership, especially with the characteristics of open source, many small and medium-sized websites choose mysql as the website database in order to reduce the overall cost of ownership. The solution of database system using mysql database management system and PHP scripting language ...

1. Package Scan + Component Label Comments The following comments are used, mainly for classes written by you @Controller @Service @Repository @Component @ComponentScan Reference resources spring Annotation Development: ComponentScan Component Scan 2. Use bean annotations Main usage scenario: Import components from third-party p ...