Is the best programming language Java or PHP?

Comparing Java with PHP is incorrect. Because PHP is a server-side scripting language, Java is a universal language. In other words, PHP is only used as a server-side language, while Java is both a server-side language and a desktop programming language. In addition, Java is a compiled strongly typed language. On the other hand, PHP is a dynamically typed language. Therefore, the comparison between Java and PHP is only meaningful for server-side programming. First, what is Java? Java is designed as a general programming language for building independent applications. When Sun released Java at 199 1, it was originally used to program consumer electronic products such as VCRs. Java is a compilation language, so when compiling code, it has become the intermediate binary file of the specific operating system running your software. Its application is compiled into bytecode and can run on the implementation of Java Virtual Machine (JVM). The JVM helps to build a bridge between the source code and 1 and 0 that computers can understand. Any machine with JVM installed can run Java. In development, Java is mainly the server-side language of Web, and it is also the preferred programming language for mobile development on Android platform. Although it is no longer popular in Java due to security problems, it still has a good position in the Java front end. Second, what is PHP? PHP (Hypertext Preprocessor) is a general scripting language. After the first release of 1995, it quickly became the de facto preferred language for Web developers (February 20, 20081/best Web developer). It was designed and created for the Web, not for Web languages such as Ruby or Python. Today, PHP programmers still have a high demand for running PHP on most websites, because it is the basis of content management systems such as WordPress, Drupal and Joomla, and many modern frameworks such as Laravel and Symfony. CakePHP's use of this mature language has accelerated the development speed. Third, the difference between PHP and Java Let's take a closer look at some of the main differences between the two languages: 1, compiling and explaining Java is considered as a "compiled" programming language. This makes it run on any operating system, no matter where it is written. The difference lies in the implementation: Java is compiled into bytecode and runs on a virtual machine. PHP is what you call an * interpreted * language or "script", and the code can run as it is in its own runtime environment (i.e. server). Although there are many subtle differences in the debate between compilation and interpretation (compilation, interpretation language and JIT compiler interpretation), it is true that scripts are easier to use and help programmers improve their work efficiency. 2. Memory security Java is a memory-safe language, which means that if you try to assign values outside the given array parameters, the programmer will receive an error message. Static type checking and dynamic type checking Java uses static type checking, that is, checking the type of variables at compile time. Programmers must specify the type of any variable they create (integer, double, string, etc.). These two paradigms have their own advantages and disadvantages, but the main advantage of static type checking is that type errors are found early in development, and because the compiler knows exactly what data type is being used, the code can usually execute faster or use less memory. . The main advantage of dynamic type checking is to improve the efficiency of programmers and to assign types at will. 3. Concurrency This is the ability of a language to handle the execution of multiple instruction sequences simultaneously. Java uses multithreading to execute tasks in parallel. Like most server-side languages, PHP uses multithreading and block I/O to perform multiple tasks in parallel. In most use cases, both methods can work normally, but Java is usually faster because thread-to-thread memory sharing is much faster than IPC. PHP has existed for some time, and has found its own way to realize asynchronous processing-the most famous is the HHVM project published through Facebook. Class-based and prototype-based Java follows class-based inheritance-a top-down, hierarchical, class-based relationship, in which attributes are defined in a class and inherited by an instance of the class (one of its members). Conclusion There is no difference between good and bad in any programming language, which depends on the perception of individuals who intend to learn these scripts. As a beginner, please choose a small and easy-to-learn language. There are fewer challenges at first, but learning can bring fun and adventure. Once you master a language, you can learn a new language easily. Moreover, when you master both PHP and Java, you will become an excellent and versatile Web developer.