php vs 其他语言

PHP vs JavaScript 什么是PHP? PHP代表超文本预处理器,它是一种开源脚本语言。它是服务器…

PHP vs JavaScript

什么是PHP?

PHP代表超文本预处理器,它是一种开源脚本语言。它是服务器端脚本语言,是用于创建动态和交互式网站的强大工具。

PHP是一种解释型语言,因此不需要编译。它是专门为在服务器上执行的服务器端脚本而设计的。PHP可以轻松地嵌入HTML文件。

注意:PHP主要用于开发服务器端应用程序。

它具有以下优点:

  • 可以在Windows,Linux,UNIX,Solaris等不同平台上执行PHP代码。
  • 它易于使用和学习。
  • PHP是一种开源语言,这意味着它是免费提供的。

通常,PHP是廉价,跨平台,快速且可靠的Web开发应用程序。

什么是JavaScript?

JavaScript是一种客户端脚本语言。它旨在创建以网络为中心的应用程序。JavaScript是一种轻量级且区分大小写的语言,具有面向对象的功能。

我们可以使用HTML设计网页,但不能运行任何逻辑(如算术运算,检查任何条件或循环语句等),因此要在客户端实现此功能,就需要JavaScript。

JavaScript还具有以下优点:

  • JavaScript非常快,因为JavaScript代码可在客户端浏览器中立即执行。
  • JavaScript可以轻松嵌入HTML,AJAXXML
  • JavaScript支持所有现代浏览器,并且在所有浏览器上都提供相同的结果。
  • 如果用户忘记输入一些详细信息,它会立即向用户提供反馈。

PHP和JavaScript之间的区别

PHP和JavaScript都用于不同的目的。如前所述,PHP是服务器端脚本,而JavaScript是客户端脚本。以下是PHP和JavaScript之间的一些区别:

PHP JavaScript
PHP is a server-side scripting language. JavaScript is a client-side scripting language.
PHP performs all the server-side functions like authentication, building custom web content, handling request, etc. JavaScript is designed to create an interactive web application without interacting with the server
PHP can combine with HTML only. JavaScript can combine with HTML, AJAX and also with XML.
PHP is used for back-end purpose only. JavaScript is used for both front-end and back-end.
PHP is easy to learn. JavaScript is complex to learn.
PHP is a multi-threadedlanguage, which means it blocks input/output to do multiple tasks concurrently. JavaScriptis single-threaded, i.e.,event-driven, which means it never blocks, and everything runs in concurrent order.
In PHP, the code will be available and viewed after it is interpreted by the server. A JavaScript code can be viewed Even after the output is interpreted.
It is synchronous by nature and waits for I/O operation to execute. JavaScript is asynchronous by nature and does not wait for I/O operation to execute.

什么是HTML?

HTML代表用于创建网页的超文本标记语言。它基本上用于创建静态网页,但可以与CSS,JavaScript和PHP集成。

HTML不是编程语言,因为它是基于标记的语言。尖括号<>用于表示HTML元素或标签。

  • HTML非常容易学习和实现。
  • 它不是区分大小写的语言。
  • 我们可以在任何文本编辑器(如Notepad,Notepad ++,Edit plus等)上编写HTML代码。
  • HTML与平台无关,因此可以在不同的平台上执行。
  • 它允许程序员在网页上添加颜色,音频,视频和图像。

PHP和HTML之间的区别

PHP HTML
PHP is a server-side programming language. HTML is a client-side scripting language.
PHP is used in backend development, which interacts with databases to retrieve, store, and modify the information. HTML is used in frontend development, which organizes the content of the website.
PHP is used to create a dynamic website. The output will depend on the browser. HTML is used to create a static website. The output of static website remains the same on each time.
PHP can manipulate the data. It cannot manipulate the data.
PHP code executes on web servers like Apache web server, IIS web server. HTML code executes on web browsers like Chrome, Internet Explorer, etc.
PHP is scripting language. HTML is a markup language.
PHP7.3 is the latest version of PHP. HTML5.2 is the latest version of HTML.
PHP is also easy to learn but not as simple as HTML. HTML is easy to learn. It can easily learn in a very short time.
PHP files save with .php extension. HTML files save with .html extension.

什么是Node.js?

Node.js是一种在服务器上运行的JavaScript编程语言。它有助于创建动态和交互式的网页。Node.js文件以.js扩展名保存,并且仅包含JavaScript代码。它在浏览器外部执行JavaScript代码。

Node.js是一种开放源代码语言,可在Windows,Linux,UNIX和MacOS等不同环境中执行。

Node.js具有许多优点,在下面列出。

  • Node.js快速且轻量级。
  • 它比PHP更安全。
  • Node.js允许我们为客户端和服务器端编写JavaScript代码。
  • Node.js具有可伸缩性,即,可以轻松地在垂直和水平方向上扩展应用程序。
  • 由于Node.js,JavaScript现在可用于每种浏览器,并且可以在每台服务器上运行。

PHP和Node.js之间的区别

PHP和Node.js都是服务器端脚本语言。因此,他们已经成为彼此的竞争对手。它们必然有一些相似之处,也有一些差异。以下是一些基于其功能和特性的差异。

Features PHP Node.js
Runtime Environment PHP is straightforward to install and use at server-side. PHP is straightforward to install and use at server-side.
Powered by PHP is powered by Zend engine. Node.js is powered by Google’s v8 JavaScript engine.
Execution PHP is synchronous except some APIs. It is totally asynchronous.
Framework PHP has many frameworks for easy backend development, such as Laravel, CakePHP, etc. Node.js also has popular frameworks like Express, Meteor, and DerbyJS, etc.
Execution Speed PHP execution speed is slower than Node.js. Node.js is faster than PHP and lightweight too.
Web Server PHP needs Apache web server to execute the code. Node.js doesn’t need any web server to execute. It runs in its own environment.
Compatibility with other languages PHP can contain HTML, JavaScript, CSS, and even plain text. Node.js can contain only JavaScript.
Used by Facebook, Wikipedia, Yahoo, Flickr, and WordPress, etc., are using PHP. IBM, GoDaddy, NetFlix, LinkedIn, Paypal, and Walmart are the adopters of Ndoe.js.
Complexity PHP is simpler to use than Node.js. Node.js is not too complex, but need more lines of code and callback functions.
Basic syntax echo ‘Hello PHP’; Console.log(‘Hello Node.js’);
Module A developer needs to download and install PHP manually. It doesn’t come in bundled with module. It comes prepackaged with the NPM package management system and its registry.
Performance PHP is fast, but slower than Node.js due to the database, third-party request, and file system. Node.js is faster due to its non-blocking mechanism.

什么是Python?

Python是一种解释性的,面向对象的编程语言,用于Web开发,软件开发和系统脚本编写等。它是区分大小写的语言。Python的3.7.2是Python的最新版本。

Python是一种通用的高级编程语言。用Python语言编写的程序无需预先编译即可运行。有许多用Python开发的流行应用程序,例如YouTube,Google,DropBox,Instagram,Quora等。

Python不仅是一种网络语言,因为它还用于开发控制台应用程序,移动应用程序,桌面应用程序,IOT应用程序,AI应用程序以及软件测试和黑客攻击等。

以下是Python的几个优点。

  • Python是一种动态类型化的语言。
  • 它的代码易于编写和调试,因此语法非常简单明了。
  • 缩进用于代替Python的花括号。
  • 它使用没有声明的变量。
  • 我们可以使用Python用最少的代码和更少的时间来解决复杂的问题。
  • 我们可以为Windows,Linux,UNIX和Mac OS等不同平台创建Python应用程序。

PHP和Python之间的区别

Python和PHP都是免费的开源语言。Python和PHP之间的主要区别是,Python是一种通用编程语言,PHP,而主要用于web开发。

PHP Python
PHP is a specialized web development programming language. Python is a general-purpose programming language.
PHP does not support multiple inheritance. Python support multiple inheritance.
PHP does not provide functional programming. Python provides functional programming techniques.
Facebook, Yahoo, Flicker, WordPress are famous applications which are using PHP. Instagram, YouTube, Google, Pinterest are some popular applications that are using Python.
PHP has a large number of frameworks. Python has less number of frameworks.
PHP is used for web development purpose. Python is widely used in Data Science, Artificial Intelligence, Machine Learning, and big data analysis, etc.
There are more than 20 different databases to access. It does not support database connectivity as widely as PHP.
PHP offers fewer security features. Python is more secure than PHP.
Laravel, Code Igniter, and Symfony are the best frameworks for PHP. Django, Flask, and jam.py are the famous framework for Python.
PHP doesn?t perform multiprocessing. Python performs multiprocessing.
PHP depends for production on web servers like Apache or Nginx. Python depends on libraries like Gunicorn, Tornado, Gevent, etc.
It is more popular than Python, but it is losing traction. Python is gaining popularity because of its simplicity and ease of use.
类别:PHP 技巧

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