How to convert PascalCase to pascal_case?

Question

If I had:

$string = \"PascalCase\";

I need

\"pascal_case\"

Does PHP offer a function for this purpose?

Answer 1

danielstjules/Stringy provieds a method to convert string from camelcase to snakecase.

s('TestUCase')->underscored(); // 'test_u_case'