Get inverse hyperbolic sine of different numbers in PHP

Description

The following code shows how to get inverse hyperbolic sine of different numbers.

Example

//from ww w  .j a  v a  2s. c  om
<?php
    echo(asinh(7) . "<br>");
    echo(asinh(156) . "<br>");
    echo(asinh(2.45));
?>

The code above generates the following result.