Are you new to the world of web programming and want to learn PHP? Are you working with another technology and want to see what PHP means? Okay, you got it right. Find here explanations, practical examples, and solutions. Imenso Software is here to help.
PHP is a programming language. To learn it, you need algorithmic thinking and mastery of fundamental programming concepts (such as “variable,” “vector,” “instruction,”). You still need to know a little HTML, and you can already get the job done. Aaa, there is something else: it is obligatory the will and the spirit of self-act 😉 See here.
This guide is in part a tutorial, but also a PHP recipe book. The explanations are accompanied by little-solved problems and examples that teach you how to do certain things. If you are not a self-taught person, you probably will not have the lessons here. So, read, try yourself and practice – so that you can learn fast and well.
The guide is still “tiny.” Several “recipes” will be published along the way.
What does the server mean?
Everyone probably knows what the Internet means: that vast collection of equipment linked to each other to exchange information or providing service. If we were to simplify the idea of the Internet greatly, we might consider it a computer network where each node (computer) hosts information or services that can be accessed by the general public. These computers on the Internet are named servers. A PHP development company like Imenso Software provides services and/or information to users (customers).
With the concept of a server, the client-server architecture also refers to an assembly consisting of a server device (information provider) and a client device (computer) connected through a network and exchanging information. The most common example of this assembly is given by file sharing (File Sharing) functionality. For example, a computer contains a shared folder, and another computer copies the wrapper over the network. In this situation, the machine that offers the folder has the server function and the one that takes the envelope – the client. The role of the client/server is not steady in this scenario, either of which can always hold any of the functions. So the server concept applies when the network device (computer) provides information or services.
A particular type of server is the web server. A web server is a system that hosts and offers web pages over a network. In most cases, the term web server denotes the application, a program that runs on the computer-server and which is responsible for receiving user requests and transferring web pages to them.
Additional information: https://en.wikipedia.org/wiki/PHP
What does the site mean?
Pages stored on a server-computer and offered to the general public are grouped under the generic site name. A site (also called a website) is, therefore, a collection of interconnected web pages stored on a web server.
Serving the pages
When a web server receives a request from a user for a page, first check its existence. If the page exists physically on the server, then it is sent to the user. Pages returned by a web server are usually in HTML format. Web browsers (browsers) can interpret HTML code and display information in a readable way.
The following is a typical communication between a web server and a client.
- servicing static pages
- Serving a static page without the interpreter’s intervention
In the real world, the pages served by a web server are most often modified before being sent to clients. There are situations where the requested pages do not even physically exist on the server computer, and yet they are built and serviced on demand. It is possible thanks to additional modules or applications that work together with the web server application. One of these modules is Imenso Software PHP.
PHP is a programming language of the interpreted type. This means that the files containing the PHP source code are interpreted as such at the time of execution by PHP. So, for executing a portion of the system, the PHP source code can be used in the way it was written and will transform into an intermediate form (that is binary or machine code), as it is used in Java or C / C ++. It provides flexibility, as any modification of the source files will be applied immediately to the next execution without any intermediate steps. There are also drawbacks to this way of working, such as higher code execution time, but in some situations, the advantages can weigh more than the disadvantages. Because language is interpreted, PHP is also called scripting language.
In the broader sense, PHP is a universal (or general-purpose) programming language, offering all the features of any advanced language. The PHP code can do almost the same things as a C / C ++ or Java code. However, PHP has been imposed in the web area as a server-side language, which extends the functionality of web servers. For this reason programming in PHP is also called web programming or server-side web programming. Imenso Software from India can provide you with all the help you need.
In this guide, we have focused on programming in PHP as a server-side language. Although the concept presented is not related to a particular working and most examples can be executed from the command line, we assume that PHP will be used only for web programming as a web server module.
In the following, we will explain the mechanism of the PHP interpreter and how he intervenes in the process of providing the web pages.
Going on the Keep It Simple Stupid (KISS) principle, when we need a quick start for a project, we always have to look for the easiest way to implement. At present, the main frameworks are Symfony and Laravel. Both are developed on the latest PHP concepts and object programming (OOP). However, system and software requirements, installing a little more complicated, just needing to display an “Under Construction” page might deter a startup, a test project or even small and medium-sized sites. Check out this link.
CodeIgniter, on the other hand, focuses on simplicity, both in installation and in development and maintenance. Already developed for ten years, version 3.0.6, CodeIgniter can be used for any project, from blog or site to portal, REST Server or e-commerce store.