What are the differences between PHP, C and Java?

What are the differences between PHP, C and Java?

PHP is a scripting language embedded in HTML documents that is executed on the server side;

C language is a process-oriented, abstract, general-purpose programming language that is widely used Developed at the bottom;

Java is an object-oriented programming language that can write cross-platform application software.

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C language is a process-oriented computer programming language, which is different from object-oriented programming languages ​​such as C and Java. The design goal of the C language is to provide a programming language that can be easily compiled, handle low-level memory, generate only a small amount of machine code, and can run without any runtime environment support. C language describes problems faster than assembly language, has less workload, good readability, and is easy to debug, modify and transplant, while the code quality is equivalent to assembly language. C language is generally only 10% to 20% less efficient than the target program generated by assembly language code. Therefore, C language can write system software.

At the current stage, in the field of programming, C language is used a lot. It takes into account the advantages of high-level language and assembly language, and has greater advantages than other programming languages. Computer system design and application programming are the two major areas of C language application. At the same time, the C language is highly universal and can be applied in many computer operating systems with remarkable efficiency.

Von Neumann proposed several ideas of modern computers in 1945, which are called von Neumann's ideas by later generations. This is a milestone in the history of computer development. Most of its structures have been used since 1945, so von Neumann is called the father of computers. His architecture computer consists of five major components: arithmetic unit, controller, memory, input device, and output device. C language has a complete theoretical system and has a long history of development. It plays a decisive role in programming languages.

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