📅  最后修改于: 2020-09-28 05:39:50             🧑  作者: Mango
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:
通常,PHP是廉价,跨平台,快速且可靠的Web开发应用程序。
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:
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. |