Strings have always been an integral part of the programming world. We use them so much because they do something that’s almost impossible to do with other data types. They allow our code to communicate with others.
The definition of “others” is quite wide in this context. Others can be as straightforward as someone using your WordPress plugin. But it can also be more abstract like a browser reading HTML code generated by PHP. They are both a third party who interacts with strings generated by your code.
Sometimes, these strings are simple and used as is. But more often than not, these strings need to be dynamic. They need to adapt to what’s going on inside your code.
This latter one is why it’s important to have a good understanding of what you can do with strings in PHP. That’s because there are countless ways that you might want to alter a string. For example, you could have a string change based on certain conditions. Or you could insert one or more variables into it.
For this article, we’re going to focus on how you can format a string. There are a lot of built-in helper functions for strings in PHP. We’ll look at the ones that can help you achieve that goal.