kutchbhi

For now don't worry about JSON. The following converts JSON into a regular PHP array. An array which has more arrays inside it ( Multidimensional array) //convert json object to php associative array $data = json_decode($jsondata, true); Simple explanation: For an array $carsArr = array( array("Volvo", 22, 18), array("BMW", 15, 13), array("Saab", 5, 2), array("Land Rover", 17, 15) ); $carsArr[0] - first item in the array . Basically $carsArr[0] is equal to ("Volvo", 22, 18) Now $carsArr[0][1] would be the second item of $carsArr[0] . That is '22' here. $carsArr[0][0] would be the - "Volvo " And so on

DI isn't a basic feature of OOP. It's a design principle/technique. https://en.wikipedia.org/wiki/Dependency_injection Here is where I got a fair idea about this: https://knpuniversity.com/screencast/dependency-injection

Trying to deeply learn about - dependency injection / factories and other software engineering concepts. My Goal is to architecture my apps better, by writing modular components. I can find plenty of blog posts and random videos about learning these, but It would be great if someone can suggest a proper video series or book for this. Or please just suggest what/where can I search for finding a course for this. As in does this land under 'design patterns ' , 'software architecture' or something else ? Any help ? Thanks