- Recreate the package.json and package-lock.json file in this project and also add .nvmrc file.
- Also, add packge-scripts file for better package management in this project of the scripts used.
Note: The setup is only tested on firefox and chrome ~ Sahil.
Setting up:
Step1: Clone this repo and start the php server:
git clone https://github.com/sahilrajput03/learning-php
cd learning-php
npm i
npm startStep2: Install the browser extension so browser can know if some files have changed in disk and then it will simply 💓︎ refresh the server page on every change. You can install the extension by navigating to appropriate links for your browser.
Note 😬︎😬︎: You need to set the setting in the browser extension like that else you are on your own 🙏︎ -
With live-sever cli your server will run on origin: http://localhost:8080 and thus you can configure your browser live-server extension like shown below exactly(Note: We are serving our php server @ port 3000, see scripts in package.json for more details).
Note you must NOT (although we want it to run at port 8080 only, live-server by default server files @ port 8080 though) specify --port 8080 in live-server command, coz that seems to cause any problem and live reloading in browser isn't working that way.
The github repo of browser extension tool is here.
Src: https://stackoverflow.com/a/64542693/10012446
- live web server from php: https://github.com/ritwickdey/live-server-web-extension
- if ever get free try this another promising extension(its popular on vscode though: https://marketplace.visualstudio.com/items?itemName=ziishaned.livereload).
To serve a particular path with apache2, read the guide @ linux-walkthrough.md file.
- Formatter (Source - ChatGPT):
- PHP CS Fixer - VsCode Extension, Github
- Install PHP-CS-Fixer by running -
composer require --dev friendsofphp/php-cs-fixer- Make sure you add
vendordirectory to your.gitignorefile.
- Make sure you add
- Install PHP-CS-Fixer by running -
- AMAZING THINGS- vscode-intelephense-client
- PHP CS Fixer - VsCode Extension, Github
- Formatting php with Prettier (Src)
- Format with Prettier: Just install this package
npm i -D @prettier/plugin-phpto your project and you are good then.., (i.e., saving a file now also formats php files as well). - NOTE IF your formatter does not work in VsCode then please check this as it helped fix my issue of formatting in vscode today 12 July 2025. Github Issue
- Format with Prettier: Just install this package
- Run command:
php -S localhost:8000to run current folder at 8000 port.
Read about this awesomeness @ SO's answer: https://stackoverflow.com/a/21872484/10012446
-
Via apache2: Visit: localhost/1.php to run a php file for browser.
-
The file name must have extension .php otherwise the html content will render for sure but the php code won't execute at all.
Browse localhost/docs to view the default page of apache2 server.
- TODO: Continue learning from https://www.w3schools.com/php/php_functions.asp
<?php
echo '<h1>Hello World 123</h1>';
echo 'Hello World 123';
// This is a single-line comment
# This is also a single-line comment
/*
This is a multiple-lines comment block
that spans over multiple
lines
*/
// You can also use comments to leave out parts of a code line
$x = 5 /* + 15 */ + 5;
// src: https://www.w3schools.com/php/php_comments.asp
?> <!DOCTYPE html>
<html>
<body>
<h1>My first PHP page</h1>
<?php echo 'Hello World!'; ?>
</body>
</html><!DOCTYPE html>
<html>
<body>
In PHP, keywords (e.g. if, else, while, echo, etc.), classes, functions, and user-defined functions are not case-sensitive.
<br>
Note: However, all variable names are case-sensitive.
See next example for that^^.
<br>
<?php
echo 'Hello World!<br>';
echo 'Hello World!<br>';
echo 'Hello World!<br>';
?>
</body>
</html><!DOCTYPE html>
<html>
<body>
Note: However, all variable names are case-sensitive.
<br>
<br>
<?php
$color = 'red';
echo 'My car is ' . $color . '<br>';
echo 'My house is ' . $COLOR . '<br>';
echo 'My boat is ' . $coLOR . '<br>';
?>
</body>
</html><!DOCTYPE html>
<html>
<body>
<?php
$txt = 'Hello world!';
$x = 5;
$y = 10.5;
echo $txt;
echo '<br>';
echo $x;
echo '<br>';
echo $y;
?>
<p>
PHP Variables
A variable can have a short name (like x and y) or a more descriptive name (age, carname, total_volume).
Rules for PHP variables:
A variable starts with the $ sign, followed by the name of the variable
A variable name must start with a letter or the underscore character
A variable name cannot start with a number
A variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
Variable names are case-sensitive ($age and $AGE are two different variables)
<br />
<a href="https://www.w3schools.com/php/php_variables.asp">source</a>
</p>
</body>
</html><?php
// Use below coee to refresh the page every two seconds
// $url1=$_SERVER['REQUEST_URI'];
// header("Refresh: 2; URL=$url1");
echo '<h1>Hello World 123</h1>';
echo 'I am Superman';
?><?php
echo '<h1>Hello World 123</h1>';
echo 'I am Superman 1';
?><?php
function writeMsg() {
echo 'Hello world, to alex sir!';
}
writeMsg(); // call the function
?><?php
function familyName($fname) {
echo "$fname Yup.<br>";
}
familyName('Jani');
familyName('Hege');
familyName('Stale');
familyName('Kai Jim');
familyName('Borge');
function familyName2($fname, $year) {
echo "$fname Refsnes. Born in $year <br>";
}
familyName2('Hege', '1975');
familyName2('Stale', '1978');
familyName2('Kai Jim', '1983');
?><?php
// eg from: https://www.w3schools.com/php/php_functions.asp
// In the example above, notice that we did not have to tell PHP which data type the variable is.
// PHP automatically associates a data type to the variable, depending on its value. Since the data types are not set in a strict sense, you can do things like adding a string to an integer without causing an error.
function addNumbers(int $a, int $b) {
return $a + $b;
}
echo addNumbers(5, '5 days');
// since strict is NOT enabled "5 days" is changed to int(5), and it will return 10
?><?php declare(strict_types=1);
// In PHP 7, "type declarations" were added. This gives us an option to specify the expected data type when declaring a function, and by adding the strict declaration, it will throw a "Fatal Error" if the data type mismatches.
// To specify strict we need to set declare(strict_types=1);. This must be on the very first line of the PHP file.
// The Example is from: https://www.w3schools.com/php/php_functions.asp
function addNumbers(int $a, int $b) {
return $a + $b;
}
// echo addNumbers(5, '5 days'); // 🛑︎ This throws error..
echo addNumbers(1, 3); // 🥝︎ This doesn't throw error.
// since strict is NOT enabled "5 days" is changed to int(5), and it will return 10
?><?php declare(strict_types=1);
// 🤹︎🤹︎🤹︎ Amazing we can still use loosely typed bindings with php even though we specified "strict declaration" for php, yikes!
function addNumbers($a, $b) {
return $a + $b;
}
// echo addNumbers(5, '5 days'); // 🛑︎ This throws error..
echo addNumbers(1, 200); // 🥝︎ This doesn't throw error.
// since strict is NOT enabled "5 days" is changed to int(5), and it will return 10
?>