We’ll look at the differences between the two in this post, as well as when you should use each in development projects.
Let’s start with a look at how these languages came to be.
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Rasmus Lerdorf created PHP as an open source language in 2004. Personal Home Page Tools, a set of scripts used by Rasmus to track visits to his site, inspired the name.
PHP 3.0 introduced a new reverse acronym for the language: PHP: Hypertext Preprocessor. It’s now simply known as PHP.
As a result, both languages have a long history.
We’ll now look at some of their other resemblances.
Type of Language
That is, rather than being translated directly into machine code, they are translated through a third party. This has an effect on their performance. The majority of scripting languages are interpreted rather than compiled.
You’d need an interpreter if you didn’t know the Navajo language, and the translation would take longer. Consider the following scenario: you want to translate a website from your native language to Navajo.
Computed languages are faster than interpreted languages because of this.
Variables are classified according to their type.
This means that you don’t have to specify the data type of a variable in either language; it’s assumed.
As a result, in PHP, you can write the following:
These variables will be recognized as strings (groups of characters) in both languages.
This is in contrast to a strongly typed language like Java, where you must declare the type of variable you’re using:
$x is now an integer in PHP.
The PHP 8 release includes a new, improved version of gettype called get_debug_type. The gettype function in PHP returns the type of a variable.
Objects and Classes
PHP 5 introduced the ability to create objects and classes in 2004.
A class is a type of object that is grouped together in a generic way.
A property (characteristic) and a method (behavior) define an object.
A good analogy is the role-playing game Dungeons and Dragons (D&D).
An object corresponds to a player character. A character class, such as Barbarian, Rogue, or Wizard, is assigned to each character.
You can define as many properties as you want for an object.
As an example, a character’s properties could include:
- the name
- Strength, Intelligence, Wisdom, Dexterity, Constitution, and Charisma are all abilities.
- personality type (e.g., outgoing, reserved, or inquisitive)
- (lawful, chaotic, good, evil) alignment
You can get information about an object by using object methods.
Here’s an example of a class and object definition in PHP code:
When this code is added to an HTML file, the following should appear in the browser:
You can also define methods, which are actions taken by or performed on the objects.
They could be, for example, in D&D:
- surpriseAttack() is a function that allows you to attack someone unexpectedly.
- disarmTrap() is a method for disarming a trap.
- castSpell() is a method for casting spells.
- resistPoison() is a function that helps you avoid getting poisoned.
When a method is applied to an object, the result may be influenced by its properties. As a result, a sorcerer’s apprentice object won’t be able to cast spells as well as an experienced wizard object.
Demand on the Market
They earn around $80,000 per year on average in the United States.
Salaries for PHP Developers on Glassdoor.com
Documentation is required.
The documentation for each language can be found here:
- Documentation for PHP
- Language specification for ECMAScript 2020
Client-Side Scripting vs. Server-Side Scripting
This means that instead of running on a client machine, it runs on a web server. PHP is a scripting language that runs on the server.
When a user logs in, server-side programming can be used to deliver dynamic content (typically from a database) to them, such as a welcome message (“Hi, Claire!”).
For example, there are over 100 WooCommerce extensions that connect to various payment providers via APIs (application programming interfaces) to process transactions. Server-side scripting is used in ecommerce on a more serious level.
Backend vs. Frontend
PHP is used in the backend of a website, which is hidden from visitors. This means that PHP does all of its work in the WordPress admin and on the web server.
Other Languages in Combination
The LAMP stack (Linux, Apache, MySQL, PHP) includes PHP as a backend language.
PHP and HTML can work together. Examining the code of many web apps, including WordPress, will reveal this.
Here’s an example from the index.php file of the Twenty Twenty theme:
It is, however, more difficult to maintain web apps that combine PHP with other backend languages. Plus, you must not only know PHP, but also study and be proficient in the other languages!
Sensitivity to the circumstances
When naming entities in the language, case sensitivity refers to the distinction between uppercase and lowercase letters.
Some things require a case, while others do not. PHP is case sensitive to some extent.
Variables in PHP are case sensitive.
If you want to create a variable in PHP, you can do so as follows:
It won’t work if you try to get the value of $DOG later in your code.
However, PHP functions are case-insensitive.
If you write this function in PHP, it should look like this:
Your function will still run if you later call DogFetch() in your code.
However, because it is inconsistent, this is not a good coding practice.
The set of rules that govern a language is known as syntax. Word order, grammar, and punctuation are all part of this.
We could say in English:
I took my time eating my soup.
If you were Yoda, however, you’d say:
I ate my soup slowly.
The same words, but in a different order. The syntax is unique. What is the reason for this?
The Yoda-Speak Generator is a tool that allows you to create your own Yoda-
Some languages have words that look similar but have different meanings.
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Lui is a French word that means “him” in English.
Lui is an Italian word that means “he” in English.
While humans are tolerant of misspellings, computers are very literal. When we make a mistake in our programming syntax, a computer frequently does not understand what we mean, resulting in an error.
However, PHP has a different comment syntax:
- A semicolon (;) is missing at the end of a line of code.
- For conditional statements, do not use a pair of curly braces.
Definitions of Variable and Constant
They also have different definitions of constants.
The value of a simple constant like this cannot be changed later.
For constants, PHP uses the define() function.
PHP constants are always written in uppercase. Here’s an example:
Within the brackets, the first two parameters are self-explanatory.
The third option, case-insensitive, is set to false by default. The constant will only be case insensitive if it is set to true.
That is to say:
Arrays are a type of data structure.
Arrays are variables that can hold multiple items.
Arrays in PHP are either ordered maps or associative arrays. That is, the array’s items have key and value pairs that are related.
The following is a less abstract example, in which the key is a first name and the value is a surname.
You can convert PHP objects to arrays and arrays to PHP objects for convenience.
You must use the array index, which starts at 0, to retrieve a value.
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Integration of databases
PHP works particularly well with MySQL or MariaDB, which are both used by WordPress. A number of PHP frameworks also make it simple to connect to databases. Connecting to databases is something that PHP excels at.
Searching, sorting, and filtering information to present to a user, such as products in an online store, can be done with the help of a database.
The number of instructions that a programming language can handle is referred to as threading.
PHP is multi-threaded, which means it can handle multiple instructions at the same time.
Developer Samim Yaquby uses the analogy of a coffee shop serving customers to demonstrate threading.
A large Starbucks, on the other hand, would almost certainly have several baristas working on the same orders at the same time. This is similar to PHP’s multithreaded approach.
Since PHP 7, thanks to a new engine that doubled performance and reduced memory consumption, PHP speed has increased by leaps and bounds. PHP 7.0 can handle more than twice as many requests as PHP 5.6, and performance has improved even more with each 7.x release.
The Just in Time Compiler, which will be included in PHP 8, is expected to make PHP even faster.
Managers of packages
Package managers are third-party reusable code modules that add extra functionality to a project. Each language has its own package manager. Because some packages rely on others to function, they are referred to as dependencies.
PEAR and Composer are two package managers for PHP that can download PHP packages from the Packagist repository.
Npm is the most popular of these, with over 11 million developers worldwide using it.
Use on the Internet
PHP is the most popular server-side programming language on the internet today, with nearly 80% of websites using it.
Server-side programming languages from W3Techs
Client-side programming languages from W3Techs
What Is the Purpose of PHP?
PHP can be used in a variety of ways.
PHP is used by over 34 million websites, according to BuiltWith, and it powers some of the most well-known and highest-earning websites on the Internet, such as Nike, Salesforce, and Walmart. It’s most well-known for its ability to create dynamic web pages.
Websites that use PHP and generate $1 million or more in revenue
Cookie and session management, username and password authentication, and two-factor authentication are all part of this. If your project requires secure user authentication, PHP is an excellent choice.
It also has built-in data security for handling user input, which protects against threats such as SQL injection. PHP is good for working with databases because it can interface with a variety of them, as previously stated.
PHP is also widely used in the development of real-time applications such as instant messaging.
Finally, you’ll need a server backend even if you do most of your work on the frontend. PHP is an excellent choice because it was designed specifically for this purpose.
- Apps for mobile devices
- Servers for the internet
- Playing games
- Decks of slides
- Chatbots are computer programs that communicate with each other.
- …as well as programmable drones
The answer is a resounding yes.
Web forms are a good example of where it’s useful to validate user input before saving it to a database.
Here’s how both languages are currently used in WordPress.
Theme template files, the loop, authentication, validation, and database access are all done with PHP.
Variables, loops, conditional statements, scope, and objects are common programming constructs in both languages.
PHP is simple to learn because it is such a well-known and widely used language.
You’ll need a server to write PHP code because it’s a server-side language. DevKinsta, XAMPP, WAMP, and MAMP are some examples. A real web server or an emulation of one, such as a local development environment, could be used.
You can open the console in Chrome by pressing Control+Shift+J on Windows or Command+Option+J on Mac.
His advice to newcomers to JS is as follows:
Don’t waste your time trying to find the ideal item, because there isn’t one.” “Don’t get too caught up in the order in which you should learn things.
‘ ‘ Do you want to learn more about two of the most widely used scripting languages? To tweet, simply click here. Here you can find out about their similarities and differences, as well as a detailed comparison chart.
Whichever one you choose for your next project — and it could be both! — you can be confident that if you take the time to learn the language, you will create a website or app that will delight your users.
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