How can I build a responsive mobile app with PHP as a web developer, I'm a newbie in web development please and I wish to maintain apex growth in this field

I suggest you look at Javascript to add to your skills.

Responsive apps are done using CSS and, specifically, CSS media queries, which engage different stylesheets rules based on the device form factor.

To get started, chick out a CSS framework such as Bootstrap, which does a lot of the heavy lifting for you.

There are some more popular ones, but Bootstrap is the first that comes to mind, and I’m typing this on my phone. Basically any CSS grid framework should do the trick though. Some are targeted more for newbies and some for more advanced users to do more adhoc things.

Do not be scared off by Pritaeas suggesting you need to learn a programming language such as Javascript.

A responsive website is achieved 100% with html and css markup and stylesheets.

Good luck!

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