I'm a web developer working on a project that involves trigonometric functions in PHP. I came across the `tan()` function, but I'm not quite sure how to use it correctly. I understand that `tan()` is short for tangent and it returns the tangent of a given angle in radians. However, I'm not sure how to properly implement it in my code.

Could someone please provide me with a clear example of how to use the `tan()` function in PHP? It would be great if you could also explain any necessary parameters or inputs I should consider when using this function.

Thanks in advance for your help!

Sure, I'd be happy to share my experience using the `tan()` function in PHP.

I've used the `tan()` function in PHP for a few projects that involved trigonometric calculations and it has proved to be quite useful. The `tan()` function takes a single parameter, which is the angle in radians for which you want to calculate the tangent.

Here's a simple example to help you understand how to use the `tan()` function:

In this example, we calculate the tangent of an angle of 45 degrees (converted to radians using the `pi()` function), and then we store the result in the variable `$tangent`. Finally, we display the result using the `echo` statement.

Remember, the `tan()` function works with angles in radians, so you may need to convert degrees to radians if you're working with degrees. You can use the `deg2rad()` function to perform the conversion, like this:

I hope this helps! Let me know if you have any further questions.