In this article, we discuss new features brought by PHP 8 related to arrays, variables, operators, and exception handling. We also discussed some trait-, class-, and function-related features ...

In this final article in the series on new features in PHP 7.x, we shall discuss improvements to arrays, operators, constants, and exception handling.

You can utilize the string functions available in PHP to find instances of "field_" in your array. Here is something I whipped up to test this in action.