What are the main differences between PHP and Java? Which is the best language for Web development?

First, preface

PHP and Java are the two most popular programming languages now.

For many novices, what kind of language should you learn when learning? The following article gives you the difference between the two and some of the options suggested, come together to see it.

Second, Introduction

PHP and Java as two different programming languages, whether it is the technical level or the development of space, or market share, there are different ways of expression, the concept of different results in Java and PHP in the development of Web applications show a different result. To be sure to traced to the end, dig into PHP and Java which is better?

In short: PHP is an interpretation of the execution of the scripting language, grammar and C language similar, easy to learn and easy to use, do not understand the computer's non-professional learning can also be used PHP, and Java to be compiled into a class file, and then executed on the Java virtual machine, Java development needs to familiarize with Java syntax and some core architecture, To achieve a reusable, cross-platform software, Java than PHP is more difficult to learn.

So what's the difference between PHP and Java in web development? Which web development language is most suitable?

Iii. Comparison of languages

PHP is the server scripting language that interprets execution, first PHP has a simple and easy-to-follow feature. Grammar and C are more alike, so programmers who have studied C can quickly become familiar with the development of PHP. Java needs to learn Java grammar and familiar with some core class library, and understand object-oriented program design method. So, relatively speaking, PHP better learn some.

Java is first compiled into a bytecode. class file and then interpreted for execution on the Java virtual machine. Java Web Development is the first most likely to think of the JSP (now to JSP2.0), the original Java Web development is implemented with a servlet, using the servlet to develop a programmer in the Java source files embedded in a large number of HTML code. So then came the jsp,jsp can be conveniently embedded into the HTML file, in fact, the JSP file on the server when the execution of the first application server will be converted into a servlet, and then compiled execution. JSPs can generate powerful functionality through the support of Servlets and JavaBean. JavaBean is a reusable, cross-platform software component. The use of JavaBean can easily realize the separation of Java code and HTML, which can enhance the function of the system and the reusability of the software.

Java's web development is a specification of a sun company-defined EE. It also includes all aspects of Java's web development, such as JSP, Servlet, JDBC, JNDI, JAVABEAN, EJB, and so on. The Java EE is particularly well-suited for large enterprise applications.

IV. Technical Framework

Java is a purely object-oriented development, powerful, many branches, no Java can not do software. c/S or b/s. Functionally speaking, no language can compare with Java.

PHP is an up-and-comer, absorbing the advantages of Java and C and Perl, focusing on the Internet domain. The web domain PHP has the unique advantage, the web domain no language can compare with him.

The Java language has obvious advantages over PHP, and Java uses an object-oriented approach to system design, while PHP uses a process-oriented approach to development. PHP can only implement a simple distributed two-tier or three-tier architecture, while Java implements a multi-tiered architecture. The database layer (persistence layer), the application (business) logic layer, the presentation logic layer are separated from each other, and now the different layers have some mature development framework support. For example, struts is the use of Java Web Development technology to implement the MVC design pattern, but in the business logic layer also has spring framework, database persistence layer has hibernate and other frameworks. These frameworks enable developers to efficiently, rationally, and scientifically architect multi-layered business applications.

Five, database access speed comparison

Java accesses the database through JDBC and provides easy access to the database through database drives provided by different database vendors. The interface to access the database is more uniform.
PHP has different database access interfaces for different databases, so the database access code is not very versatile. For example, a Java-developed Web application that goes from a MySQL database to an Oracle database requires little modification, and PHP needs to do a lot of work.

Java's performance is better than PHP in terms of mathematical operations and database access speeds. In fact, for large, cross-platform enterprise applications, Java is almost the only option (Microsoft. NET does not support cross-platform), but in Web site application development, Java is facing the risk of being marginalized by PHP, almost all of the virtual host support Php+mysql, Java is supported by a few, but in resources, there are countless PHP resources on the Internet, many well-known large sites (such as Facebook, MediaWiki, etc.) are based on PHP, and successful Java sites are few.

Although Java's mathematical computing and database access have advantages, the architecture is quite perfect, but PHP can simply and easily support high-intensity Web access, rapid development of applications, the number of support for PHP virtual host, making it easier to develop a Web site in PHP than Java to develop a site is much faster, It's much easier. Java has the advantages of only the traditional software project as the core of the development model, and PHP is more suitable for the customer-centric development of the SaaS model, therefore, PHP's current advantage in Web site development is entirely due to the particularity of Web site development, not the programming language characteristics of the decision.

Vi. Comparison of development costs

PHP's most classic combination is: PHP + MySQL + Apache. Ideal for developing small to medium-sized Web applications, it is faster to develop. And all the software is open source free, can reduce investment.

Java's Web application server has free tomcat, JBoss, and so on, if the need for better commercialization of services are: Web sphere and Web logic.

Vii. Source code Security

PHP development of the program's source code is public, others get PHP development program can be modified.

Java Development Program, the last user to get is just some compiled class class, can not see the full source code, security high.

Viii. Summary

To sum up, the individual believes that PHP is suitable for rapid development, small and medium-sized application systems, low cost of development, easy to learn, to change the needs of rapid response, in debugging, release, PHP is simpler than Java.

Java is suitable for the development of large-scale application system, the prospect of application is broad, the system is easy to maintain, reusability is better. Java's philosophy is "write once, run everywhere", Java under the framework of application architecture is unparalleled, far better than any other language, Java framework for large-scale collaborative programming development, system easy to maintain, reusability is better. Also, systems developed by the same function in Java are more expensive than those developed by PHP.

Well, these are the main differences between PHP and Java for everyone, as well as some suggestions for beginners who want to learn the two languages, I hope that we can help, thank you for the support of the script house.

What are the main differences between PHP and Java? Which is the best language for Web development?